Updated on 2024/09/15

Information

 

写真a

 
YASUDA TAKUMA
 
Organization
Institute for Advanced Study Professor
Graduate School of Engineering (Concurrent)
Title
Professor
Contact information
メールアドレス
Tel
0928026956
Profile
Our research group is promoting the fundamental and application studies on functional organic materials for advancement of novel materials science. We are advancing the study aiming at exploration of various functions of materials, such as emission, transport, conversion, and response, and their application for contributing the next-generation materials and device science.
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Degree

  • Ph.D.

Research History

  • 該当なし

    該当なし

  • 東京大学大学院 工学系研究科 化学生命工学専攻 助教

Research Interests・Research Keywords

  • Research theme:High-Efficiency Luminescent π-Materials and OLED Application

    Keyword:Luminescence; Organic synthesis; Photophysical property; Organic light-emitting diode; Electroluminescence

    Research period: 2011.4

  • Research theme:Stimuli and Environment Responsive Smart π-Materials

    Keyword:Smart material; Stimuli responsive molecules

    Research period: 2011.4

  • Research theme:Photovoltaics Based on π-Materials toward Renewable Energy Technology

    Keyword:Photovoltaics; Organic solar cell, Nanostructure; Renewable energy

    Research period: 2011.4

  • Research theme:Molecular Organization of π-Materials for Charge Transport Functionality

    Keyword:Molecular assembly; Charge transport; Mobility; Organic transistor

    Research period: 2011.4

  • Research theme:Liquid-Crystalline Semiconductors with Ordered Nanostructures

    Keyword:Liquid crystal; Semiconductor; Self-organization; Organic device

    Research period: 2010.4

Awards

  • 第5回ジャパンリサーチフロントアワード

    2024.5   クラリベイト   多重共鳴型TADF材料による高効率・高色純度有機ELデバイスの開発

  • クラリベイト第5回ジャパンリサーチフロントアワード

    2024.5   クラリベイト  

  • 第56回 市村地球環境学術賞

    2024.3   市村清新技術財団   フレキシブル有機環境発電デバイスの開発と実用展開

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    市村地球環境学術賞

  • 共同研究等活動表彰(令和5年度)

    2023.11   九州大学  

  • 日本化学会BCSJ賞

    2023.2   日本化学会   Photovoltaic Properties of π-Conjugated Polymers Based on Fused Cyclic Imide and Amide Skeletons

  • 有機合成化学協会 富士フイルム・機能性材料化学賞

    2023.2   有機合成化学協会   高速スピン変換を基軸とする革新的有機発光材料の創製

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    高速スピン変換を基軸とする革新的有機発光材料の創製

  • 共同研究等活動表彰(令和4年度)

    2022.11   九州大学  

  • 共同研究等活動表彰(令和3年度)

    2021.11   九州大学  

  • 共同研究等活動表彰(令和2年度)

    2020.11   九州大学  

  • Publons Global Peer Review Awards 2019

    2019.9   Publons  

  • 第21回 丸文学術賞

    2018.3   丸文財団   有機半導体分子の設計・集積化技術と発光素子応用の研究

  • 研究活動表彰(平成28年度)

    2016.11   九州大学  

  • 研究活動表彰(平成27年度)

    2015.11   九州大学  

  • 平成27年度 科学技術分野の文部科学大臣表彰 若手科学者賞

    2015.4   文部科学省   有機半導体分子の高度集積と有機電子デバイスに関する研究

  • 研究活動表彰(平成26年度)

    2014.11   九州大学  

  • 日本化学会進歩賞

    2014.3   日本化学会   有機半導体分子の自己組織化を活用した高機能電子デバイスの開発

  • 高分子学会日立化成賞

    2013.9   高分子学会  

  • 有機合成化学協会九州山口支部 奨励賞

    2013.6   有機合成化学協会九州山口支部  

  • 日本化学会BCSJ賞

    2012.11   日本化学会   欧文誌論文賞

  • 日本化学会 優秀講演賞(学術)

    2012.4   日本化学会  

  • 有機合成化学協会 研究企画賞

    2011.2   有機合成化学協会  

  • 日本液晶学会賞奨励賞

    2010.9   日本液晶学会   ナノ構造を有する電子活性液晶に関する研究

  • 日本化学会 優秀講演賞(学術)

    2009.4   日本化学会  

  • 第17回日本MRS学術シンポジウム奨励賞

    2007.1   日本MRS  

  • 日本液晶学会虹彩賞

    2006.9   日本液晶学会  

  • 手島記念研究賞 博士論文賞

    2006.2   手島工業教育資金団  

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Papers

  • Bis-Ortho-Donor-Modification of Boracyclic π-Electron Systems beyond Steric Protection to Produce Thermally Activated Delayed Fluorescence Materials Reviewed International journal

    Narita, H; Min, H; Kubo, N; Hattori, I; Yasuda, T; Yamaguchi, S

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   63 ( 30 )   e202405412   2024.5   ISSN:1433-7851 eISSN:1521-3773

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Angewandte Chemie - International Edition  

    Polycyclic π-conjugated compounds that contain tricoordinate boron atoms at their periphery represent an attractive class of materials with electron-accepting character. Their molecular design generally requires the introduction of a bulky aryl group onto the boron atom, where it provides predominantly kinetic stabilization. The addition of extra functionality to the aryl group on the boron atom can be expected to further expand the potential utility of this class of materials. Herein, we report the synthesis of a series of boracyclic π-conjugated molecules with firm ortho B⋅⋅⋅N nonbonding interactions by introducing N-containing electron-donors at the ortho-positions of the aryl group on the boron atom. X-ray crystallographic analysis revealed that the combination of a planar boracyclic π-skeleton with only sp2 carbons and a strong electron-donating phenothiazine moiety results in a particularly short B⋅⋅⋅N distance. Theoretical study provided insights into the inherent nature of the B⋅⋅⋅N interaction. Owing to their donor–acceptor (D−A) structures, these molecules exhibit substantially red-shifted fluorescence in solution, albeit that the fluorescence quantum yields (ΦF) are low. In contrast, when incorporated into films, these compounds exhibit thermally activated delayed fluorescence (TADF) with improved ΦF values. Organic light-emitting diodes (OLEDs) fabricated using the ortho-donor-substituted derivatives exhibit orange-red electroluminescence.

    DOI: 10.1002/anie.202405412

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    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202405412

  • Ultrafast Spin-Flip Exciton Conversion and Narrowband Sky-Blue Luminescence in a Fused Polycyclic Selenaborin Emitter Reviewed International journal

    Sudhir K. Keshri, Guanting Liu, and Takuma Yasuda

    Front. Chem. 2024, 12, 1375552.   12   1375552   2024.3   ISSN:2296-2646

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3389/fchem.2024.1375552

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    Other Link: https://www.frontiersin.org/articles/10.3389/fchem.2024.1375552/full

  • Extended Theoretical Modeling of Reverse Intersystem Crossing for Thermally Activated Delayed Fluorescence Materials Reviewed International journal

    Masaya Hagai, Naoto Inai, Takuma Yasuda, Kazuhiro J. Fujimoto, and Takeshi Yanai

    Science Adv. 2024, 10, eadk3219.   10 ( 5 )   eadk3219   2024.1   ISSN:2375-2548

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1126/sciadv.adk3219

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    Other Link: https://www.science.org/doi/10.1126/sciadv.adk3219

  • A π-Extended Tercarbazole-Core Multi-Resonance Delayed Fluorescence Emitter Exhibiting Efficient Narrowband Yellow Electroluminescence Reviewed International journal

    Konidena, RK; Yang, ML; Yasuda, T

    CHEMICAL COMMUNICATIONS   59 ( 68 )   10251 - 10254   2023.7   ISSN:1359-7345 eISSN:1364-548X

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Chemical Communications  

    Herein, a simple and versatile molecular design for long-wavelength (>550 nm) multi-resonance thermally activated delayed fluoresence emitters is reported. Extending a fully fused polycyclic π-system with an additional para-N-π-N conjugation induces narrowband bright-yellow photoluminescence and electroluminescence emissions at ∼560 nm.

    DOI: 10.1039/D3CC03241H

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    Other Link: https://pubs.rsc.org/en/content/articlelanding/2023/cc/d3cc03241h

  • Fused Polycyclic Lactam-Based π-Conjugated Polymers for Efficient Nonfullerene Organic Solar Cells Reviewed International journal

    Sato, N; Hwang, S; Tsuchii, Y; Yasuda, T

    J. Mater. Chem. A 2023, 11, 9840–9845.   11 ( 18 )   9840 - 9845   2023.4   ISSN:2050-7488 eISSN:2050-7496

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of Materials Chemistry A  

    The development of high-performance wide-bandgap polymers has attracted significant attention in recent non-fullerene organic solar cells (NF-OSCs) research, as the expansion of the options of polymer donors that are appropriately matched with nonfullerene acceptors can lead to the further improvement of photovoltaic properties. In this study, two wide-bandgap π-conjugated polymers, namely, P(TPTI-BDT) and P(2DTP-BDT), based on fused pentacyclic bis-lactam and dimeric bis-lactam units, were prepared and used as the donor materials for NF-OSCs with IT-4F as the acceptor. The NF-OSCs based on the P(TPTI-BDT):IT-4F blends outperformed the corresponding P(2DTP-BDT):IT-4F-based devices, achieving high power conversion efficiencies of up to 11.7% without processing additives or post-treatments. Further investigation of the thin-film morphologies using X-ray diffraction and transmission electron microscopy revealed that both P(TPTI-BDT) and P(2DTP-BDT) adopted preferential face-on molecular orientations and formed finely nano-segregated bulk-heterojunction morphologies when blended with IT-4F.

    DOI: 10.1039/D3TA01127E

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    Other Link: https://pubs.rsc.org/en/content/articlelanding/2023/ta/d3ta01127e

  • Photovoltaic Properties of π-Conjugated Polymers Based on Fused Cyclic Imide and Amide Skeletons Reviewed International journal

    Tsuchii, Y; Menda, T; Hwang, S; Yasuda, T

    Bull. Chem. Soc. Jpn. 2023, 96, 90–94.   96 ( 2 )   90 - 94   2023.2   ISSN:0009-2673 eISSN:1348-0634

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Bulletin of the Chemical Society of Japan  

    D-A-type π-conjugated polymers, P(BDT-BTI) and P(BDT-BTA) bearing cyclic imide and amide (lactam) moieties, respectively, were designed and synthesized for application in organic photovoltaics (OPV). The introduction of electron-withdrawing imide and amide moieties lowered the HOMO energy levels of the polymers, leading to an increase in the open-circuit voltages of OPV. Complementary photoabsorption over the entire visible range was achieved by combining P(BDT-BTI) and P(BDT-BTA) with a typical non-fullerene acceptor, IT-4F. Unlike P(BDT-BTI), P(BDT-BTA) maintained high crystallinity and retained π-π stacking interactions and face-on orientation in the blend films with IT-4F. Consequently, OPV based on P(BDT-BTA):IT-4F blends achieved power conversion efficiencies as high as 9.6% without any processing additives or post-treatments.

    DOI: 10.1246/bcsj.20220336

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    Other Link: https://www.journal.csj.jp/doi/full/10.1246/bcsj.20220336

  • π-Extended Pyrrole-Fused Heteropine: Synthesis, Properties, and Application in Organic Field-Effect Transistors Reviewed International journal

    Wang, WF; Hanindita, F; Tanaka, Y; Ochiai, K; Sato, H; Li, YX; Yasuda, T; Ito, S

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   62 ( 8 )   e202218176   2023.2   ISSN:1433-7851 eISSN:1521-3773

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Angewandte Chemie - International Edition  

    Sulfur-embedded polycyclic aromatic compounds have been used as building blocks for numerous organic semiconductors over the past few decades. While the success is based on thiophene-containing compounds, aromatic compounds that contain thiepine, a sulfur-containing seven-membered-ring arene, has been less well investigated. Here we report the synthesis and properties of π-extended pyrrole-fused heteropine compounds such as thiepine and oxepine. A π-extended pyrrole-fused thiepine exhibited a “pitched π-stacking” structure in the crystal, and exhibited a high charge carrier mobility of up to 1.0 cm2 V−1 s−1 in single-crystal field-effect transistors.

    DOI: 10.1002/anie.202218176

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    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202218176

  • Facile Dimerization Strategy for Producing Narrowband Green Multi-Resonance Delayed Fluorescence Emitters Reviewed International journal

    Minlang Yang, Rajendra Kumar Konidena, So Shikita, and Takuma Yasuda

    11 ( 3 )   917 - 922   2022.11   ISSN:2050-7526 eISSN:2050-7534

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    DOI: 10.1039/D2TC04447A

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    Other Link: https://pubs.rsc.org/en/content/articlelanding/2023/tc/d2tc04447a

  • Ultrafast Singlet–Triplet Exciton Interconversion in Narrowband Blue Organoboron Emitters Doped with Heavy Chalcogens Reviewed International journal

    Park, IS; Min, H; Yasuda, T

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   61 ( 31 )   e202205684   2022.8   ISSN:1433-7851 eISSN:1521-3773

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Angewandte Chemie - International Edition  

    A selenium-doped polycyclic organoboron emitter exhibits ultrafast triplet–singlet exciton interconversion ability in addition to strong narrowband blue emission. Its spin-flip reverse intersystem crossing (RISC) rate exceeds 108 s−1 (100 million times spin inversion per second), enabling superimposed fluorescence with full exciton utilization. This breakthrough shatters the stereotypical physicochemical views of conventional thermally activated delayed fluorescence limited by slow RISC.

    DOI: 10.1002/anie.202205684

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    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202205684

  • Blue Thermally Activated Delayed Fluorescence with Sub-Microsecond Short Exciton Lifetimes: Acceleration of Triplet–Singlet Spin Interconversion via Quadrupolar Charge-Transfer States Reviewed International journal

    Min, H; Park, IS; Yasuda, T

    ADVANCED OPTICAL MATERIALS   10 ( 13 )   2022.7   ISSN:2195-1071

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Advanced Optical Materials  

    Exciton lifetime is a critical factor in determining the performance of optoelectronic functional systems and devices. Thermally activated delayed fluorescence (TADF) emitters that can concurrently achieve a high fluorescence quantum yield and short exciton lifetime are desirable for application in organic light-emitting diodes (OLEDs) with suppressed efficiency roll-off. Herein, phenoxaborin and xanthone-cored TADF emitters with quadrupolar electronic structures are reported to exhibit sub-microsecond TADF lifetimes as short as 650 and 970 ns, respectively, while preserving high fluorescence quantum yields. By extending the El-Sayed rule to the quadrupolar π-systems, the contribution of doubly degenerate charge-transfer excited states induced by dual donor units can enhance the spin–orbit coupling between them, leading to a spin-flip acceleration between the excited triplet and singlet states. This electronic feature is advantageous for mitigating exciton annihilation processes in the emission layer, thereby reducing the efficiency roll-offs in OLEDs. Consequently, a high external electroluminescence quantum efficiency over 20% can be retained, even under operating the device at a high luminance of 1000 cd m−2.

    DOI: 10.1002/adom.202200290

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  • Axially Chiral 1,1’-Bicarbazolyls with Near-Ultraviolet Circularly Polarized Luminescence Reviewed International journal

    Shikita, S; Harada, T; Yasuda, T

    CHEMICAL COMMUNICATIONS   58 ( 31 )   4849 - 4852   2022.3   ISSN:1359-7345 eISSN:1364-548X

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Chemical Communications  

    The facile synthesis and chiroptical properties of a new family of circularly polarized luminescence (CPL) materials, axially chiral 1,1′-bicarbazolyls (BiCz), are reported. The BiCz derivatives emitted intense near-ultraviolet photoluminescence, with a peak at ∼380 nm. The BiCz enantiomers showed mirror-image circular dichroism and CPL, with glum values on the order of 10−4 in solution.

    DOI: 10.1039/D2CC00936F

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    Other Link: https://pubs.rsc.org/en/content/articlelanding/2022/cc/d2cc00936f

  • Achieving Ultimate Narrowband and Ultrapure Blue Organic Light-Emitting Diodes Based on Polycyclo-Heteraborin Multi-Resonance Delayed Fluorescence Emitters Reviewed International journal

    In Seob Park, Minlang Yang, Hiromoto Shibata, Natsuki Amanokura, and Takuma Yasuda

    Adv. Mater. 2022, 34, 2107951.   34 ( 9 )   e2107951   2021.12   ISSN:0935-9648 eISSN:1521-4095

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adma.202107951

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    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/adma.202107951

  • Ester-Functionalized Thermally Activated Delayed Fluorescence Materials Reviewed International journal

    Hiroshi Tasaki, So Shikita, In Seob Park, and Takuma Yasuda

    J. Mater. Chem. C 2022, 10, 4574-4578.   10 ( 12 )   4574 - 4578   2021.11   ISSN:2050-7526 eISSN:2050-7534

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    DOI: 10.1039/D1TC04933J

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    Other Link: https://pubs.rsc.org/en/content/articlelanding/2021/tc/d1tc04933j

  • An S-Shaped Thienoacene Semiconductor Forming Unique Cruciform Lamellar Packing via a 2D Interaction Network of π-Stacking and Chalcogen Bonding Reviewed International journal

    2021.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D1TC03871K

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2021/tc/d1tc03871k

  • Deep-Blue OLEDs Based on Organoboron–Phenazasiline-Hybrid Delayed Fluorescence Emitters Concurrently Achieving 30% External Quantum Efficiency and Small Efficiency Roll-Off Reviewed International journal

    2021.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adom.202101282

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/adom.202101282

  • Wide-Range Color Tuning of Narrowband Emissions in Multi-Resonance Organoboron Delayed Fluorescence Materials through Rational Imine/Amine Functionalization Reviewed International journal

    Minlang Yang, So Shikita, Hyukgi Min, In Seob Park, Hiromoto Shibata, Natsuki Amanokura, and Takuma Yasuda

    Angew. Chem. Int. Ed. 2021, 60, 23142-23147.   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202109335

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202109335

  • Fused-Nonacyclic Multi-Resonance Delayed Fluorescence Emitter Based on Ladder-Thiaborin Exhibiting Narrowband Sky-Blue Emission with Accelerated Reverse Intersystem Crossing Reviewed International journal

    Masakazu Nagata, Hyukgi Min, Erika Watanabe, Hiroki Fukumoto, Yoshiyuki Mizuhata, Norihiro Tokitoh, Tomohiro Agou, and Takuma Yasuda

    Angew. Chem. Int. Ed. 2021, 60, 20280-20285.   2021.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202108283

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202108283

  • Alternating Donor–Acceptor π-Conjugated Macrocycle Exhibiting Efficient Thermally Activated Delayed Fluorescence and Spontaneous Horizontal Molecular Orientation Reviewed International journal

    2021.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adpr.202100021

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/adpr.202100021

  • Thermal Equilibration between Singlet and Triplet Excited States in Organic Fluorophore for Submicrosecond Delayed Fluorescence Reviewed International journal

    Naoya Aizawa, Akinobu Matsumoto, and Takuma Yasuda

    Science Adv. 2021, 7, eabe5769.   2021.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1126/sciadv.abe5769

    Other Link: https://advances.sciencemag.org/content/7/7/eabe5769

  • cis-Quinacridone-Based Delayed Fluorescence Emitters: Seemingly Old but Renewed Functional Luminogens Reviewed International journal

    Hyukgi Min, In Seob Park, and Takuma Yasuda

    Angew. Chem. Int. Ed. 2021, 60, 7643-7648.   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202016914

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202016914

  • Phenyl-Triggered Photophysical Switching between Normal Fluorescence and Delayed Fluorescence in Phthalonitrile-Based Luminophores Reviewed International journal

    In Seob Park, Hyukgi Min, and Takuma Yasuda

    Aggregate 2021, 2, 145-150.   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/agt2.14

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/agt2.14

  • U-Shaped Heteroacenes Embedded with Heavy Chalcogen Atoms: Unique Bilayer Self-Organization of Crooked π-Cores Enabling Efficient Charge Transport Reviewed International journal

    2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/aelm.202001052

    Other Link: https://www.onlinelibrary.wiley.com/doi/10.1002/aelm.202001052

  • Regiocontrolled Synthesis of Ester-Functionalized Polythiophenes via Direct Arylation Polycondensation Reviewed International journal

    Taiki Menda, Tatsuya Mori, and Takuma Yasuda

    2020.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/s41428-020-00421-7

    Other Link: https://www.nature.com/articles/s41428-020-00421-7

  • Full-Color, Narrowband, and High-Efficiency Electroluminescence from Boron and Carbazole Embedded Polycyclic Heteroaromatics Reviewed International journal

    Minlang Yang, In Seob Park, and Takuma Yasuda

    J. Am. Chem. Soc. 2020, 142, 19468-19472.   2020.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/jacs.0c10081

    Other Link: https://pubs.acs.org/doi/10.1021/jacs.0c10081

  • Solution-Processable Organic Semiconductors Featuring S-Shaped Dinaphthothienothiophene (S-DNTT): Effects of Alkyl Chain Length on Self-Organization and Carrier Transport Properties Reviewed International journal

    Yuji Yamaguchi, Yuka Kojiguchi, So Kawata, Tatsuya Mori, Kazuo Okamoto, Masanori Tsutsui, Tomoyuki Koganezawa, Hiroshi Katagiri, and Takuma Yasuda

    Chem. Mater. 2020, 32, 5350-5360.   2020.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.chemmater.0c01740

    Other Link: https://pubs.acs.org/doi/10.1021/acs.chemmater.0c01740

  • Mechanochromic Delayed Fluorescence Switching in Propeller‐Shaped Carbazole–Isophthalonitrile Luminogens with Stimuli‐Responsive Intramolecular Charge‐Transfer Excited States Reviewed International journal

    2020.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202005584

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202005584

  • A Liquid-Crystalline Semiconducting Polymer Based on Thienylene–Vinylene–Thienylene: Enhanced Hole Mobilities by Mesomorphic Molecular Ordering and Thermoplastic Shape-Deformable Characteristics Reviewed International journal

    2020.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/s41428-019-0282-4

    Other Link: https://www.nature.com/articles/s41428-019-0282-4

  • Pentacyclic Ladder-Heteraborin Emitters Exhibiting High-Efficiency Blue Thermally Activated Delayed Fluorescence with an Ultrashort Emission Lifetime Reviewed International journal

    Tomohiro Agou, Kyohei Matsuo, Rei Kawano, In Seob Park, Takaaki Hosoya, Hiroki Fukumoto, Toshio Kubota, Yoshiyuki Mizuhata, Norihiro Tokitoh, Takuma Yasuda

    ACS Mater. Lett. 2020, 2, 28-34.   2019.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsmaterialslett.9b00433

    Other Link: https://pubs.acs.org/doi/10.1021/acsmaterialslett.9b00433

  • Dipolar and Quadrupolar Luminophores Based on 1,8‐Dimethylcarbazole−Triazine Conjugates for High‐Efficiency Blue Thermally Activated Delayed Fluorescence OLEDs Reviewed International journal

    2019.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/cptc.201900186

    Other Link: https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cptc.201900186

  • Blue Thermally Activated Delayed Fluorescence Emitters Incorporating Acridan Analogues with Heavy Group 14 Elements for High-Efficiency Doped and Non-Doped OLEDs Reviewed International journal

    Kyohei Matsuo, Takuma Yasuda

    Chem. Sci. 2019, 10, 10687-10697.   2019.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C9SC04492B

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2019/SC/C9SC04492B#!divAbstract

  • Organic Energy-Harvesting Devices Achieving Power Conversion Efficiencies over 20% under Ambient Indoor Lighting Reviewed International journal

    Ryota Arai, Seiichi Furukawa, Narumi Sato, Takuma Yasuda

    J. Mater. Chem. A 2019, 7, 20187-20192.   2019.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C9TA06694B

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2019/ta/c9ta06694b/unauth#!divAbstract

  • Strategic End-Halogenation of π-Conjugated Small Molecules Enabling Fine Morphological Control and Enhanced Performance of Organic Solar Cells Reviewed International journal

    2019.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C9TA03869H

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2019/ta/c9ta03869h/unauth#!divAbstract

  • High-Performance Organic Energy-Harvesting Devices and Modules for Self-Sustainable Power Generation under Ambient Indoor Lighting Environments Reviewed International journal

    Ryota Arai, Seiichi Furukawa, Yu Hidaka, Hideaki Komiyama, Takuma Yasuda

    ACS Appl. Mater. Interfaces 2019, 11, 9259-9264.   2019.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsami.9b00018

    Other Link: https://pubs.acs.org/doi/full/10.1021/acsami.9b00018

  • Boronate- and Borinate-Based π-Systems for Blue Thermally Activated Delayed Fluorescence Materials Reviewed International journal

    2019.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C8CC10282A

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2019/cc/c8cc10282a#!divAbstract

  • High-Crystallinity π-Conjugated Small Molecules Based on Thienylene-Vinylene-Thienylene: Critical Role of Self-Organization in Photovoltaic, Charge-Transport, and Morphological Properties Reviewed International journal

    2018.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsami.8b17056

    Other Link: https://pubs.acs.org/doi/10.1021/acsami.8b17056

  • Modulating Photo- and Electroluminescence in a Stimuli-Responsive π-Conjugated Donor–Acceptor Molecular System Reviewed International journal

    2018.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.201806863

    Other Link: https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201806863

  • High-Performance Dibenzoheteraborin-Based Thermally Activated Delayed Fluorescence Emitters: Molecular Architectonics for Concurrently Achieving Narrow-Band Emission and Efficient Triplet–Singlet Spin Conversion Reviewed International journal

    2018.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adfm.201802031

    Other Link: https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201802031

  • Oligothiophene–Indandione-Linked Narrow-Band Gap Molecules: Impact of π-Conjugated Chain Length on Photovoltaic Performance Reviewed International journal

    2018.5

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    DOI: 10.1021/acsami.8b01233

  • High-Mobility Regioisomeric Thieno[f,f‘]bis[1]benzothiophenes: Remarkable Effect of Syn/Anti Thiophene Configuration on Optoelectronic Properties, Self-Organization, and Charge-Transport Functions in Organic Transistors Reviewed International journal

    2018.5

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/aelm.201700390

  • Highly Efficient Red–Orange Delayed Fluorescence Emitters Based on Strong π-Accepting Dibenzophenazine and Dibenzoquinoxaline Cores: Toward a Rational Pure-Red OLED Design Reviewed International journal

    2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adom.201701147

  • Molecular Engineering of Phosphacycle-Based Thermally Activated Delayed Fluorescence Materials for Deep-Blue OLEDs Reviewed International journal

    Jiyoung Lee, Naoya Aizawa, Takuma Yasuda

    J. Mater. Chem. C 2018, 6, 3578-3583.   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C7TC05709A

  • Isobenzofuranone- and Chromone-Based Blue Delayed Fluorescence Emitters with Low Efficiency Roll-Off in Organic Light-Emitting Diodes Reviewed International journal

    Jiyoung Lee, Naoya Aizawa, Takuma Yasuda

    Chem. Mater. 2017, 29, 8012-8020.   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.chemmater.7b03371

  • Aggregation-Induced Delayed Fluorescence from Phenothiazine-Containing Donor–Acceptor Molecules for High-Efficiency Non-Doped Organic Light-Emitting Diodes Reviewed International journal

    2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/pj.2016.82

  • Pyrimidine-Based Twisted Donor–Acceptor Delayed Fluorescence Molecules: A New Universal Platform for Highly Efficient Blue Electroluminescence Reviewed International journal

    2017.5

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    DOI: 10.1039/C6SC03793C

  • Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence Reviewed International journal

    Jiyoung Lee, Naoya Aizawa, Masaki Numata, Chihaya Adachi, Takuma Yasuda

    Adv. Mater. 2017, 29, 1604856.   2017.5

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    DOI: 10.1002/adma.201604856

  • Thermally Activated Delayed Fluorescence Properties of Regioisomeric Xanthone-Based Twisted Intramolecular Charge-Transfer Luminophores Reviewed International journal

    Jiyoung Lee, In Seob Park, Takuma Yasuda

    Bull. Chem. Soc. Jpn. 2017, 90, 231-236.   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/bcsj.20160380

  • Cyclohexane-Coupled Bipolar Host Materials with High Triplet Energies for Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence Reviewed International journal

    In Seob Park, Hongwook Seo, Hiroki Tachibana, Joung Uk Kim, Jinbo Zhang, Se Mo Son, Takuma Yasuda

    ACS Appl. Mater. Interfaces 2017, 9, 2693-2700.   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsami.6b13002

  • Tunable Full-Color Electroluminescence from All-Organic Optical Upconversion Devices by Near-Infrared Sensing Reviewed International journal

    Hiroki Tachibana, Naoya Aizawa, Yu Hidaka, Takuma Yasuda

    ACS Photonics 2017, 4, 223-227.   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acsphotonics.6b00964

  • Effects of Chalcogen Atom Substitution on the Optoelectronic and Charge-Transport Properties in Picene-Type π-Systems Reviewed International journal

    2017.5

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    DOI: 10.1039/C7CC01292F

  • Solution-Grown Unidirectionally Oriented Crystalline Thin Films of a U-Shaped Thienoacene-Based Semiconductor for High-Performance Organic Field-Effect Transistors Reviewed International journal

    Tatsuya Mori, Tatsuya Oyama, Hideaki Komiyama, Takuma Yasuda

    J. Mater. Chem. C 2017, 5, 5872-5876.   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C7TC01836C

  • Enhancing Thermally Activated Delayed Fluorescence Characteristics by Intramolecular B–N Coordination in a Phenylpyridine-Containing Donor–Acceptor π-System Reviewed International journal

    2017.5

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    DOI: 10.1039/C7CC04875K

  • Spin-Dependent Exciton Funneling to a Dendritic Fluorophore Mediated by a Thermally Activated Delayed Fluorescence Material as an Exciton-Harvesting Host Reviewed International journal

    Naoya Aizawa, So Shikita, Takuma Yasuda

    Chem. Mater. 2017, 29, 7014-7022.   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1021/acs.chemmater.7b02606

  • Controlling Open-Circuit Voltage in Organic Solar Cells by Terminal Fluoro-Functionalization of Narrow-Bandgap π-Conjugated Molecules Reviewed International journal

    2016.5

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    DOI: 10.1021/acs.jpcc.6b06758

  • High-Performance Blue Organic Light-Emitting Diodes with 20% External Quantum Efficiency Based on Pyrimidine-Containing Thermally Activated Delayed Fluorescence Emitters Reviewed International journal

    In Seob Park, Jiyoung Lee, Takuma Yasuda

    J. Mater. Chem. C 2016, 4, 7911-7916.   2016.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C6TC02027E

  • Aggregation-Induced Delayed Fluorescence Based on Donor/Acceptor-Tethered Janus Carborane Triads: Unique Photophysical Properties for Non-Doped OLEDs Reviewed International journal

    Ryuhei Furue, Takuro Nishimoto, In Seob Park, Jiyoung Lee, Takuma Yasuda

    Angew. Chem. Int. Ed. 2016, 55, 7171-7175.   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.201603232

  • A Phenazaborin-Based High-Efficiency Blue Delayed Fluorescence Material Reviewed International journal

    In Seob Park, Masaki Numata, Chihaya Adachi, Takuma Yasuda

    Bull. Chem. Soc. Jpn. 2016, 89, 375-377.   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/bcsj.20150399

  • Full-Color Delayed Fluorescence Materials Based on Wedge-Shaped Phthalonitriles and Dicyanopyrazines: Systematic Design, Tunable Photophysical Properties, and OLED Performance Reviewed International journal

    In Seob Park, Sae Youn Lee, Chihaya Adachi, Takuma Yasuda

    Adv. Funct. Mater. 2016, 26, 1813-1821.   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adfm.201505106

  • Thermally Activated Delayed Fluorescence Polymers for Efficient Solution-Processed Organic Light-Emitting Diodes Reviewed International journal

    Sae Youn Lee, Takuma Yasuda, Hideaki Komiyama, Jiyoung Lee, Chihaya Adachi

    Adv. Mater. 2016, 28, 4019-4024.   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adma.201505026

  • High-Efficiency Blue Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives Reviewed International journal

    Sae Youn Lee, Chihaya Adachi, Takuma Yasuda

    Adv. Mater. 2016, 28, 4626-4631.   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/adma.201506391

  • High Efficiency Pure Blue Thermally Activated Delayed Fluorescence Molecules Having 10H-Phenoxaborin and Acridan Units Reviewed International journal

    Masaki Numata, Takuma Yasuda, Chihaya Adachi

    Chem. Commun. 2015, 51, 9443-9446.   2015.4

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  • Controlled Emission Color and Singlet-Triplet Energy Gap of Dihydrophenazine-Based Thermally Activated Delayed Fluorescence Emitters Reviewed International journal

    Jiyoung Lee, Katsuyuki Shizu, Hiroyuki Tanaka, Hajime Nakanotani, Takuma Yasuda, Hironori Kaji, Chihaya Adachi

    2015.4

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  • Nearly 100% Internal Quantum Efficiency in Undoped Electroluminescent Devices Employing Pure Organic Emitters Reviewed International journal

    Qisheng Zhang, Daniel Tsang, Hirokazu Kuwabara, Yasuhiro Hatae, Bo Li, Takehiro Takahashi, Sae Youn Lee, Takuma Yasuda, Chihaya Adachi

    2015.4

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  • pi-Extended Narrow-Bandgap Diketopyrrolopyrrole-Based Oligomers for Solution-Processed Inverted Organic Solar Cells Reviewed International journal

    Woong Shin, Takuma Yasuda, Yu Hidaka, Go Watanabe, Ryota Arai, Keiro Nasu, Takahiro Yamaguchi, Wakako Murakami, Kengo Makita, CHIHAYA ADACHI

    Adv. Energy Mater. 2014, 4, 1400879.   2014.4

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  • Luminous Butterflies: Efficient Exciton Harvesting by Benzophenone Derivatives for Full-Color Delayed Fluorescence OLEDs Reviewed International journal

    Sae Youn Lee, Takuma Yasuda, Yu Seok Yang, Qisheng Zhang, CHIHAYA ADACHI

    2014.4

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  • High Performance Organic Field-Effect Transistors Based on Single-Crystal Microribbons and Microsheets of Solution-Processed Dithieno[3,2-b:2',3'-d]thiophene Derivatives Reviewed International journal

    Yu Seok Yang, Takuma Yasuda, Hayato Kakizoe, Hiroyuki Mieno, Hiori Kino, Yoshitaka Tateyama, CHIHAYA ADACHI

    Chem. Commun. 2013, 49, 6483-6485.   2013.6

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  • Self-Organizing Mesomorphic Diketopyrrolopyrrole Derivatives for Efficient Solution-Processed Organic Solar Cells Reviewed International journal

    Woong Shin, Takuma Yasuda, Go Watanabe, Yu Seok Yang, CHIHAYA ADACHI

    Chem. Mater. 2013, 25, 2549-2556.   2013.6

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  • Bifunctional Star-Burst Amorphous Molecular Materials for OLEDs: Achieving Highly Efficient Solid-State Luminescence and Carrier Transport Induced by Spontaneous Molecular Orientation Reviewed International journal

    Jun Yun Kim, Yasuda Takuma, Yu Seok Yang, ADACHI CHIHAYA

    Adv. Mater. 2013, 25, 2666-2671.   2013.3

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  • Organic Single-Crystal Transistors Based on pi-Extended Heteroheptacene Microribbons Reviewed International journal

    Yu Seok Yang, Yasuda Takuma, ADACHI CHIHAYA

    Bull. Chem. Soc. Jpn. 2012, 85, 1186-1191.   85   2012.10

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  • Highly Luminescent pi-Conjugated Dithienometalloles: Photophysical Properties and Their Application in Organic Light-Emitting Diodes Reviewed International journal

    Ryosuke Kondo, Takuma Yasuda,* Yu Seok Yang, Jun Yun Kim, and Chihaya Adachi*

    J. Mater. Chem. 2012, 22, 16810-16816   22   2012.7

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    DOI: 10.1039/c2jm33526c

  • Electro-Functional Octupolar π-Conjugated Columnar Liquid Crystals Reviewed International journal

    133   2011.11

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  • A Redox-Switchable [2]Rotaxane in a Liquid-Crystalline State Reviewed International journal

    Takuma Yasuda, Kana Tanabe, Toru Tsuji, Karla K. Coti, Ivan Aprahamian, J. Fraser Stoddart, and Takashi Kato

    46   2010.5

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  • Truxene-Based Columnar Liquid Crystals: Self-Assembled Structures and Electro-Active Properties Reviewed International journal

    Kyosuke Isoda, Takuma Yasuda, and Takashi Kato

    4   2009.6

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  • π-Conjugated Oligothiophene-Based Polycatenar Liquid Crystals: Self-Organization and Photoconductive, Luminescent, and Redox Properties Reviewed International journal

    Adv. Funct. Mater. 2009, 19, 411–419.   19   2008.12

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  • New Luminescent 1,2,4-Triazole/Thiophene Alternating Copolymers: Synthesis, Characterization, and Optical Properties Reviewed International journal

    Takuma Yasuda, Kimiyasu Namekawa, Takayuki Iijima, and Takakazu Yamamoto

    48   2007.5

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  • A Liquid-Crystalline Bistable [2]Rotaxane Reviewed International journal

    Ivan Aprahamian, Takuma Yasuda, Taichi Ikeda, Sourav Saha, William R. Dichtel, Kyosuke Isoda, Takashi Kato, and J. Fraser Stoddart

    46   2007.5

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  • Columnar Liquid Crystalline π-Conjugated Oligothiophenes Reviewed International journal

    Chem. Commun. 2006, 3399–3401.   2006.7

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  • New Coplanar (ABA)n-Type Donor-Acceptor π-Conjugated Copolymers Constituted of Alkylthiophene and Pyridazine: Synthesis Using Hexamethylditin, Self-Organized Solid Structure, and Optical and Electrochemical Properties of the Copolymers Reviewed International journal

    Chem. Mater. 2005, 17, 6060–6068.   17   2005.11

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  • Ambipolar Field-Effect Transistor (FET) and Redox Characteristics of a π-Conjugated Thiophene/1,3,4-Thiadiazole CT-Type Copolymer Reviewed International journal

    Macromol. Rapid Commun. 2005, 26, 1214–1217.   26   2005.8

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  • Synthesis, Characterization, and Optical and Electrochemical Properties of New 2,1,3-Benzoselenadiazole-Based CT-Type Copolymers Reviewed International journal

    Takuma Yasuda, Tatsuya Imase, and Takakazu Yamamoto

    38   2005.7

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  • New Alternative Donor-Acceptor Arranged Poly(Aryleneethynylene)s and Their Related Compounds Composed of Five-Membered Electron-Accepting 1,3,4-Thiadiazole, 1,2,4-Triazole, or 3,4-Dinitrothiophene Units: Synthesis, Packing Structure, and Optical Properties Reviewed International journal

    Takuma Yasuda, Tatsuya Imase, Yoshiyuki Nakamura, and Takakazu Yamamoto

    38   2005.4

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  • Synthesis, Solid Structure, and Optical Properties of New Thiophene-Based Alternating π-Conjugated Copolymers Containing 4-Alkyl-1,2,4-triazole or 1,3,4-Thiadiazole Unit as the Partner Unit Reviewed International journal

    Macromolecules 2005, 38, 1500–1503.   38   2005.1

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  • Aluminum Complex-Core Carbazole Dendrimers Exhibiting Thermally Activated Delayed Fluorescence

    Nakao K., Furukori M., Liu G., Hosokai T., Yasuda T., Albrecht K.

    ACS Applied Optical Materials   2 ( 7 )   1393 - 1402   2024.7

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    Carbazole dendrimers are promising materials for realizing highly efficient solution-processed organic light-emitting diodes (OLEDs). Merging carbazole dendrimers with a light-metal complex enables the development of solution-processable materials with excellent optical properties. In this work, highly luminescent Al complexes with carbazole-based dendritic ligands were developed. Metal complexation enhances photoluminescence quantum yields (PLQYs) and thermally activated delayed fluorescence (TADF) properties compared with the corresponding dendritic ligands. Consequently, the Al complex containing symmetric dendritic ligands exhibited a high PLQY of 70% with a delayed fluorescence lifetime of 16 μs in the doped film. Solution-processed OLEDs using these Al complexes as emitters exhibited excellent performance with an external electroluminescence quantum efficiency of 10.6% at a luminance of 100 cd m-2. These results present a strategy to improve the TADF properties and contribute to expanding the chemical space of the TADF materials.

    DOI: 10.1021/acsaom.4c00178

    Scopus

  • Visible-to-UV photon upconversion in metal-free molecular aggregates based on glassy diphenylnaphthalene derivatives

    Watanabe, S; Mizukami, K; Kimizuka, N; Yasuda, T

    JOURNAL OF MATERIALS CHEMISTRY C   12 ( 29 )   10874 - 10878   2024.7   ISSN:2050-7526 eISSN:2050-7534

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    Publisher:Journal of Materials Chemistry C  

    Visible-to-ultraviolet photon upconversion (UC) based on triplet-triplet annihilation was demonstrated in metal-free glassy solid films consisting of an organoboron photosensitizer and diphenylnaphthalene-based emitter. Upon photoexcitation at 445 nm, UC emissions in the ultraviolet region (370-390 nm) were observed in binary solid films with high UC efficiencies of up to 2.6% and a threshold excitation intensity as low as 44 mW cm−2

    DOI: 10.1039/d4tc01820f

    Web of Science

    Scopus

  • Synthesis and Optical Properties of Tris(2,4,6-trichlorophenyl)methyl-Type Luminescent Radicals Bearing Multiple Carbazole Substituents Reviewed International journal

    Peiyuan Yang, Masakazu Nagata, Hiroki Fukumoto, Kouichi Nakashima, Takuma Yasuda, and Tomohiro Agou

    Bull. Chem. Soc. Jpn. 2024, 97, uoae045.   97 ( 5 )   2024.4   ISSN:0009-2673 eISSN:1348-0634

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  • Thermally Activated Delayed Fluorescence Carbazole-Triazine Dendrimer with Bulky Substituents Reviewed International journal

    Hiroki Ikebe, Kohei Nakao, Eri Hisamura, Minori Furukori, Yasuo Nakayama, Takuya Hosokai, Minlang Yang, Guanting Liu, Takuma Yasuda, and Ken Albrecht

    Aggregate 2024, 5, e405.   5 ( 1 )   2024.2   ISSN:27668541 eISSN:2692-4560

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/agt2.405

    Web of Science

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    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/agt2.405

  • Anti-Stokes Luminescence in Multi-Resonance-Type Thermally-Activated Delayed Fluorescence Molecules Reviewed International journal

    Shintaro Kohata, Hajime Nakanotani, Youhei Chitose, Takuma Yasuda, Youichi Tsuchiya, and Chihaya Adachi

    Angew. Chem. Int. Ed. 2023, 62, e202312326.   62 ( 44 )   e202312326   2023.10   ISSN:1433-7851 eISSN:1521-3773

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/anie.202312326

    Web of Science

    Scopus

    PubMed

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202312326

  • Pyromellitic-Diimide-Based Liquid Material Forming an Exciplex with Naphthalene Reviewed International journal

    Yuya Tanabe, Hirotaka Tsutsui, Shinya Matsuda, So Shikita, Takuma Yasuda, and Kyosuke Isoda

    ChemPhotoChem 2023, 7, e202200287.   2023.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/cptc.202200287

    Other Link: https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cptc.202200287

  • Special issue: π-conjugated polymers

    Yasuda, T; Osaka, I; Tanaka, K; Tanaka, K

    POLYMER JOURNAL   55 ( 4 )   295 - 295   2023.4   ISSN:0032-3896 eISSN:1349-0540

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    Publisher:Polymer Journal  

    DOI: 10.1038/s41428-022-00750-9

    Web of Science

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  • Indoor photovoltaic energy harvesting based on semiconducting π-conjugated polymers and oligomeric materials toward future IoT applications

    Hwang, S; Yasuda, T

    POLYMER JOURNAL   55 ( 4 )   297 - 316   2023.4   ISSN:0032-3896 eISSN:1349-0540

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    Publisher:Polymer Journal  

    With the advancement of artificial intelligence computing systems that can collect, analyze, and utilize metadata from our activities and surrounding environments, establishing self-powered electronic systems/networks supported by energy harvesters is strongly desired. With the lowering of power consumption in contemporary IoT electronics such as wireless sensors, indoor organic photovoltaic devices (iOPVs), which can be driven under ambient indoor light, have recently attracted significant interest as self-sustainable eco-friendly power sources. iOPVs based on organic semiconductors have unique advantages, such as light weight, flexibility, solution processability, and feasibility of low-temperature mass production. Additionally, the spectral tunability and high optical absorptivity of organic semiconductors make iOPVs more effective as energy harvesters in indoor lighting environments. With recent intensive research effort, iOPVs have realized the delivery of high power conversion efficiencies exceeding 25% with output power densities of several tens to a hundred μW cm−2, which are sufficient to drive various low-power electronics compatible with the IoT. This review article focuses on recent progress in iOPVs based on π-conjugated polymers and oligomeric materials and outlines their fundamental principles and characterization techniques.

    DOI: 10.1038/s41428-022-00727-8

    Web of Science

    Scopus

  • Room temperature phosphorescence in longer-wavelength red light region found in benzothiadiazole-based dyes

    Ishi-i, T; Kichise, R; Park, IS; Yasuda, T; Matsumoto, T

    JOURNAL OF MATERIALS CHEMISTRY C   11 ( 8 )   3003 - 3009   2023.2   ISSN:2050-7526 eISSN:2050-7534

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    Publisher:Journal of Materials Chemistry C  

    Room temperature phosphorescence in the longer-wavelength red-light region has attracted considerable interest owing to its development in biological imaging and sensing. However, red phosphorescence is highly limited because the phosphorescence color emitted from organic dyes has mostly been restricted to shorter-wavelengths in the blue, green, and yellow regions. Red phosphorescence is observed in an electron-accepting benzothiadiazole dye bearing a methoxy group and bromine atom in the crystal solid state. Although the benzothiadiazole dye has an inherent characteristic of phosphorescence in the monomeric state, the phosphorescence behavior in the crystalline solid state is assisted secondarily by aggregation through π⋯π interactions among benzothiadiazole moieties, C-H⋯O interactions among methoxy groups, and Br⋯Br interactions among bromine atoms. After the intersystem crossing accelerated by the heavy-atom effect of the introduced bromine atom, the given excited triplet state can be stabilized by these multiple intermolecular interactions, resulting in the restriction of the nonradiative channel and acceleration of the phosphorescence radiation. This red phosphorescence can be developed into other dyes bearing key electron-acceptor moieties, bromine atoms, and methoxy groups.

    DOI: 10.1039/d3tc00162h

    Web of Science

    Scopus

  • Room Temperature Phosphorescence in Longer-Wavelength Red Light Region Found in Benzothiadiazole-Based Dyes Reviewed International journal

    Tsutomu Ishi-i, Rihoko Kichise, In Seob Park, Takuma Yasuda, and Taisuke Matsumoto

    2023.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/cptc.202200287

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2023/tc/d3tc00162h

  • Panchromatic Small-Molecule Organic Solar Cells Based on a Pyrrolopyrrole Aza-BODIPY with a Small Energy Loss Reviewed International journal

    Ru Feng, Tatsuya Mori, Takuma Yasuda, Hiroyuki Furuta, and Soji Shimizu

    Dyes Pigm. 2023, 210, 111020.   210   2023.2   ISSN:0143-7208 eISSN:1873-3743

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.dyepig.2022.111020

    Web of Science

    Scopus

    Other Link: https://www.sciencedirect.com/science/article/abs/pii/S0143720822009421

  • Narrowband Emissive Thermally Activated Delayed Fluorescence Materials

    Kim, HJ; Yasuda, T

    ADVANCED OPTICAL MATERIALS   10 ( 22 )   2022.11   ISSN:2195-1071

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    Publisher:Advanced Optical Materials  

    Organic thermally activated delayed fluorescence (TADF) materials have attracted significant research interest in the field of organic electronics because of their inherent advantage of 100% exciton utilization capability in organic light-emitting diodes (OLEDs) without the use of noble metals. However, despite their high internal electroluminescence quantum efficiencies approaching unity, broad emission spectra with sizable full width at half maxima (FWHM; 60–100 nm) present a critical issue that must be solved for their application in ultrahigh-definition OLED displays. Recently, a new paradigm of TADF materials featuring the multiple resonance (MR) effect based on heteroatom-doped polycyclic aromatic frameworks, referred to as MR-TADF materials, has emerged and garnered considerable research interest owing to their remarkable features of efficient narrowband emissions with extremely small FWHMs (≤30 nm). Currently, MR-TADF materials occupy a prominent position in the cutting-edge research on organic light-emitting materials from both chemical and physical perspectives. This review article focuses on recent progress in narrowband emissive MR-TADF systems from the perspective of molecular design, photophysical properties, and electroluminescence performance in OLEDs. The current status and future prospects of this advanced material technology are discussed comprehensively.

    DOI: 10.1002/adom.202201714

    Web of Science

    Scopus

  • Regulation of Multicolor Fluorescence Changes Found in Donor–Acceptor-Type Mechanochromic Fluorescent Dyes Reviewed International journal

    2021.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/asia.202100538

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/asia.202100538

  • Near Infrared Absorbing Pyrrolopyrrole Aza-BODIPY-Based Donor–Acceptor Polymers with Reasonable Photoresponse Reviewed International journal

    2020.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D0TC01487G

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2020/tc/d0tc01487g#!divAbstract

  • White-Light Emission from a Pyrimidine–Carbazole Conjugate with Tunable Phosphorescence–Fluorescence Dual Emission and Multicolor Emission Switching Reviewed International journal

    2020.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D0CC00251H

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2020/cc/d0cc00251h#!divAbstract

  • Rational Design of Pyrrolopyrrole-Aza-BODIPY-Based Acceptor-Donor-Acceptor Triads for Organic Photovoltaics Application Reviewed International journal

    Ru Feng, Narumi Sato, Takuma Yasuda, Hiroyuki Furuta, Soji Shimizu

    Chem. Commun. 2020, 56, 2975-2978.   2020.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/D0CC00398K

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2020/cc/d0cc00398k#!divAbstract

  • An Isonicotinonitrile-based Blue Thermally Activated Delayed Fluorescence Emitter Reviewed International journal

    In Seob Park, Takuma Yasuda

    Chem. Lett. 2020, 49, 210-213.   2020.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/cl.190808

    Other Link: https://www.journal.csj.jp/doi/full/10.1246/cl.190808

  • Synthesis of Anthracene Derivatives with Azaacene‐Containing Iptycene Wings and the Utilization as a Dopant for Solution‐Processed Organic Light‐Emitting Diodes Reviewed International journal

    2019.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/chem.201903476

    Other Link: https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.201903476

  • Mechanochromic Fluorescence Based on a Combination of Acceptor and Bulky Donor Moieties: Tuning Emission Color and Regulating Emission Change Direction Reviewed International journal

    Tsutomu Ishi-i, Honoka Tanaka, Ryusuke Youfu, Naoya Aizawa, Takuma Yasuda, Shin-ichiro Kato, Taisuke Matsumoto

    New J. Chem. 2019, 43, 4998-5010.   2019.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C8NJ06050A

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2019/nj/c8nj06050a#!divAbstract

  • π-Conjugated Naphthodithiophene Homopolymers Bearing Alkyl/Alkylthio-Thienyl Substituents: Facile Synthesis Using Hexamethylditin and Their Charge-Transport and Photovoltaic Properties Reviewed International journal

    2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/pj.2017.45

  • Tetrathienoanthracene-Based π-Extended Narrow-Band-Gap Molecules: Synthesis, Physicochemical, and Photovoltaic Properties Reviewed International journal

    2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/cl.160858

  • Star-Shaped and Linear π-Conjugated Oligomers Consisting of a Tetrathienoanthracene Core and Multiple Diketopyrrolopyrrole Arms for Organic Solar Cells Reviewed International journal

    2016.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3762/bjoc.12.142

  • Photon-Absorbing Charge-Bridging States in Organic Bulk Heterojunctions Consisting of Diketopyrrolopyrrole Derivatives and PCBM Reviewed International journal

    Mikiya Fujii, Woong Shin, Takuma Yasuda, Koichi Yamashita

    Phys. Chem. Chem. Phys. 2016, 18, 9514-9523.   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/C5CP06183K

  • Organic Light-Emitting Diodes Based on Donor-Substituted Phthalimide and Maleimide Fluorophores Reviewed International journal

    Myung Eun Jang, Takuma Yasuda, Jiyoung Lee, Sae Youn Lee, Chihaya Adachi

    Chem. Lett. 2015, 44, 1248-1250.   2015.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1246/cl.150454

  • Highly Efficient Electroluminescence from Purely Organic Donor–Acceptor Systems Invited Reviewed International journal

    2015.5

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  • Tetraphenyldibenzoperiflanthene as Sensitizer for Enhancing the Performance in Dinaphthothienothiophene-Based Photovoltaics with and without Fullerene Reviewed International journal

    Yan-qiong Zheng, William J. Potscavage Jr., Jing Zhang, Takuma Yasuda, Bin Wei, Chihaya Adachi

    2015.4

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  • X-Shaped Benzoylbenzophenone Derivatives with Crossed Donors and Acceptors for Highly Efficient Thermally Activated Delayed Fluorescence Reviewed International journal

    Sae Youn Lee, Takuma Yasuda, In Seob Park, Chihaya Adachi

    2015.4

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  • Efficiency Enhancement of Organic Light-Emitting Diodes Incorporating a Highly Oriented Thermally Activated Delayed Fluorescence Emitter Reviewed International journal

    Christian Mayr, Sae Youn Lee, Tobias D. Schmidt, Takuma Yasuda, CHIHAYA ADACHI, Wolfgang Brutting

    2014.4

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  • A Six-Carbazole-Decorated Cyclophosphazene as a Host with High Triplet Energy to Realize Efficient Delayed-Fluorescence OLEDs Reviewed International journal

    Takuro Nishimoto, Takuma Yasuda, Sae Youn Lee, Ryosuke Kondo, CHIHAYA ADACHI

    Mater. Horiz. 2014, 1, 264-269.   2014.4

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  • Polymorphism in 9,9-Diarylfluorene-Based Organic Semiconductors: Influence on Optoelectronic Functions Reviewed International journal

    Jun Yun Kim, Takuma Yasuda, Yu Seok Yang, Naoki Matsumoto, CHIHAYA ADACHI

    Chem. Commun. 2014, 50, 1523-1526.   2014.4

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  • Self-Assembly, Physicochemical, and Field-Effect Transistor Properties of Solution-Crystallized Organic Semiconductors Based on -Extended Dithieno[3,2-b:2',3'-d]thiophenes Reviewed International journal

    2014.4

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  • Light-Emitting Organic Field-Effect Transistors Based on Highly Luminescent Single Crystals of Thiophene/Phenylene Co-Oligomers Reviewed International journal

    Takahiro Komori, Nakanotani Hajime, Takuma Yasuda, CHIHAYA ADACHI

    2014.4

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  • Donor–Acceptor Structured 1,4-Diazatriphenylene Derivatives Exhibiting Thermally Activated Delayed Fluorescence: Design and Synthesis, Photophysical Properties and OLED Characteristics Reviewed International journal

    2014.4

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  • High Efficiency Light-Emitting Diodes with Fluorescent Emitters Reviewed International journal

    Hajime Nakanotani, Takahiro Higuchi, Taro Furukawa, Kensuke Masui, Kei Morimoto, Masaki Numata, Hiroyuki Tanaka, Yuta Sagara, Takuma Yasuda, CHIHAYA ADACHI

    Nature Commun. 2014, 5, 4016.   2014.4

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  • Thermally Activated Delayed Fluorescence from a Spiro-Diazafluorene Derivative Reviewed International journal

    Hiroshi Ohkuma, Tetsuya Nakagawa, Katsuyuki Shizu, Takuma Yasuda, CHIHAYA ADACHI

    2014.4

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  • A Highly Luminescent Spiro-Anthracenone-Based Organic Light-Emitting Diode through Thermally Activated Delayed Fluorescence Reviewed International journal

    Keiro Nasu, Tetsuya Nakagawa, Hiroko Nomura, Chi-Jen Lin, Chien-Hong Cheng, Mei-Rurng Tseng, Takuma Yasuda, CHIHAYA ADACHI

    2013.9

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  • Oxadiazole- and Triazole-Based Highly-Efficient Thermally-Activated Delayed Fluorescence Emitters for Organic Light-Emitting Diodes Reviewed International journal

    Jiyoung Lee, Katsuyuki Shizu, Hiroyuki Tanaka, Hiroko Nomura, Takuma Yasuda, Takuma Yasuda

    J. Mater. Chem. C 2013, 1, 4599-4604.   2013.6

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  • Molecular Design of High-Molecular-Orientation Electron-Transport Materials and Application to Organic Light-Emitting Diodes Reviewed International journal

    Kazunori Togashi, Yuta Sagara, Takuma Yasuda, CHIHAYA ADACHI

    2013.5

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  • Triphenylene-Based Host Materials for Low-Voltage and Highly Efficient Red Phosphorescent Organic Light-Emitting Diodes Reviewed International journal

    Kazunori Togashi, Yasuda Takuma, ADACHI CHIHAYA

    2013.4

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  • Effects of Intramolecular Donor-Acceptor Interactions on Bimolecular Recombination in Small-Molecule Organic Photovoltaic Cells Reviewed International journal

    Masaya Hirade, Yasuda Takuma, ADACHI CHIHAYA

    J. Phys. Chem. C 2013, 117, 4986-4991.   2013.3

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  • Triphenylene-Based Host Materials for Low-Voltage and Highly Efficient Red Phosphorescent Organic Light-Emitting Diodes Reviewed International journal

    Kazunori Togashi, Yasuda Takuma, ADACHI CHIHAYA

    Chem. Lett. 2013, 42, 383-385.   2013.3

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  • A Host Material Consisting of A Phosphinic Amide Directly Linked Donor-Acceptor Structure for Efficient Blue Phosphorescent Organic Light-Emitting Diodes Reviewed International journal

    Atsushi Wada, Yasuda Takuma, Qisheng Zhang, Yu Seok Yang, Isao Takasu, Shitaro Enomoto, ADACHI CHIHAYA

    J. Mater. Chem. C 2013, 1, 2404-2407.   2013.2

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  • Low Driving Voltage Characteristics of Triphenylene Derivatives as Electron Transport Materials in Organic Light-Emitting Diodes Reviewed International journal

    Kazunori Togashi, Shintaro Nomura, Norimasa Yokoyama, Takuma Yasuda, and Chihaya Adachi

    J. Mater. Chem. 2012, 22, 20689-20695.   22   2012.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c2jm33669c

  • High-Performance Organic Light-Emitting Diodes Utilizing Efficient Thermally Activated Delayed Fluorescence from Triazine-Based Donor–Acceptor Hybrid Molecules Reviewed International journal

    101   2012.8

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  • Efficient Luminescence from a Copper(I) Complex doped in Organic Light-Emitting Diodes by Suppressing C-H Vibrational Quenching Reviewed International journal

    Atsushi Wada, Qisheng Zhang, Takuma Yasuda, Isao Takasu, Naoya Enomoto, and Chihaya Adachi

    Chem. Commun. 2012, 48, 5340-5342.   2012.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1039/c2cc31509b

  • Horizontal Orientation of a Linear-Shaped Platinum(II) Complex in Organic Light-Emitting Diodes with a High Light Out-Coupling Efficiency Reviewed International journal

    Masatsugu Taneda, Takuma Yasuda, and Chihaya Adachi

    Appl. Phys. Exp. 2011, 4, 071602.   4   2011.7

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  • Alignment of Photoconductive Self-Assembled Fibers Composed of π-Conjugated Molecules under Electric Fields Reviewed International journal

    J. Mater. Chem. 2010, 20, 173–179.   20   2010.4

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  • Anisotropic Self-Assembly of Photoluminescent Oligo(p-phenylenevinylene) Derivatives in Liquid Crystals: An Effective Strategy for the Macroscopic Alignment of π-Gels Reviewed International journal

    Adv. Mater. 2009, 21, 4029–4033.   21   2009.10

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  • Macrocycle-Based Liquid Crystals: A Study of Topological Effects on Mesomorphism Reviewed International journal

    509   2009.9

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  • Photoluminescent Liquid Crystals Based on Trithienylphosphine Oxides Reviewed International journal

    Masaomi Kimura, Tsukasa Hatano, Takuma Yasuda, Jun Morita, Yusuke Akama, Kiyoshi Minoura, Takeshi Shimomura, and Takashi Kato

    38   2009.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Supramolecular Structure of Columnar Liquid Crystalline π-Conjugated Oligothiophenes with Highly Polarized Photoluminescent Properties Reviewed International journal

    105   2009.6

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  • A Layered Liquid Crystalline Droplet Reviewed International journal

    Yan-Li Zhao, Natalia Erina, Takuma Yasuda, Takashi Kato, and J. Fraser Stoddart

    19   2009.4

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  • Luminescent Ionic Liquid Crystals Based on Tripodal Pyridinium Salts Reviewed International journal

    Kana Tanabe, Takuma Yasuda, and Takashi Kato

    37   2008.11

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  • Dipole-Driven Self-Assembly of Redox-Active Mesogenic Tetracyanoanthraquinodimethanes Reviewed International journal

    Kyosuke Isoda, Takuma Yasuda, and Takashi Kato

    18   2008.8

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  • Luminescent π-Conjugated Poly(aryleneethynylene)s Consisting of Plural Aromatic Units: Preparation and Systematic Studies on Their Optical Properties Reviewed International journal

    React. Funct. Polym. 2008, 68, 1483–1491.   68   2008.8

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  • Viologen-Based Redox-Active Ionic Liquid Crystals Forming Columnar Phases Reviewed International journal

    Kana Tanabe, Takuma Yasuda, Masafumi Yoshio, and Takashi Kato

    9   2007.9

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  • A Liquid-Crystalline [2]Catenane and Its Copper(I) Complex Reviewed International journal

    46   2007.5

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  • Oligothiophene-Based Liquid Crystals Exhibiting Smectic A Phases in Wider Temperature Ranges Reviewed International journal

    Masaomi Kimura, Takuma Yasuda, Kenji Kishimoto, Gunther Gotz, Peter Bauerle, and Takashi Kato

    35   2006.7

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  • Utilization of Industrially Available 2,3-Dichloro-1,3-butadiene for Direct Synthesis of 2,3-Diaryl-1,3-butadienes Reviewed International journal

    Takakazu Yamamoto, Takuma Yasuda, Kazuaki Kobayashi, Isao Yamaguchi, Take-aki Koizumi, Daisuke Ishii, Masaru Nakagawa, Yoshihiro Mashiko, and Norihiro Shimizu

    79   2006.3

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  • Transfer of Photoenergy in π-Conjugated Polymers. Two Types of Photoluminescence that Involve Energy Transfer along a Polymer Chain Reviewed International journal

    J. Phys. Chem. B 2005, 109, 10605–10610.   109   2005.5

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Books

  • World Scientific Handbook of Organic Optoelectronic Devices, Volume 3: OLEDs (Ed. Dongge Ma) “Boron-Containing Thermally Activated Delayed Fluorescence Materials for High-Efficiency OLEDs”, Chapter 2, pp. 61–78.

    ( Role: Joint author)

    2022.3 

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    Language:English   Book type:Scholarly book

  • Light-Active Functional Organic Materials (Ed: H. Yamada and S. Yagai) “Thermally Activated Delayed Fluorescence (TADF) Materials for Organic Light-Emitting Devices”, Chapter 8, pp. 151–171.

    ( Role: Joint author)

    2019.4 

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    Language:English   Book type:Scholarly book

  • Supramolecular Soft Matter: Applications in Materials and Organic Electronics (Ed: T. Nakanishi) “Advanced Systems of Supramolecular Liquid Crystals”, Chapter 14, pp. 283–299.

    ( Role: Joint author)

    2011.10 

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  • Boron-Containing Thermally Activated Delayed Fluorescence Materials for High-Efficiency OLEDs

    Park I.S., Yasuda T.

    Materials and Energy  2022    ISSN:23356596

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    This chapter has presented molecular design strategies for boronbased purely organic TADF emitters as well as their photophysical and EL properties. The boron atom, possessing a trigonal planar structure with a vacant p-orbital, can provide unique photophysical properties and act as a fascinating building block for fluorophores, which opens new designs for efficient TADF emitters. Boron-based TADF-OLEDs demonstrated high EL performance with internal EL quantum efficiencies of up to 100%, and have drawn the attention of researchers for further development in this area in terms of device stability and high EL efficiency at high current density. With numerous merits of boron-containing TADF emitters such as narrow FWHM and high PL quantum efficiencies in the pure neat film, highefficiency TADF-OLEDs based on this type of emitters are expected to play an important role in the display industry in the future.

    DOI: 10.1142/9789811240324_0002

    Scopus

  • Organic Electronics Materials and Devices, (Ed: S. Ogawa) “Organic Light-Emitting Diodes (OLEDs): Materials, Photophysics, and Device Physics”, Chapter 2, pp. 43–73.

    ( Role: Joint author)

    2015.10 

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  • 「機能性ナノ構造液晶の新展開」 ファインケミカル, Vol. 40, No. 3, pp. 36–41

    安田琢麿・加藤隆史( Role: Joint author)

    2011.2 

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    Language:Japanese   Book type:Scholarly book

  • 液晶―構造制御と機能化の最前線―(加藤隆史 監修、分担執筆) 「液晶性有機半導体のナノ構造化」

    舟橋正浩・安田琢麿・加藤隆史( Role: Joint author)

    シーエムシー出版  2010.6 

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    Language:Japanese   Book type:Scholarly book

  • 電子共役系有機材料の創製・機能開発・応用 (檜山爲次郎 監修、分担執筆) 「電子共役系の自己組織化と機能」

    安田琢麿・加藤隆史( Role: Joint author)

    シーエムシー出版  2008.1 

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    Language:Japanese   Book type:Scholarly book

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MISC

  • Indoor Photovoltaic Energy Harvesting Based on Semiconducting π-Conjugated Polymers and Oligomeric Materials toward Future IoT Applications Reviewed

    Polym. J. 2023, 55, 297–316.   2023.4

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    DOI: 10.1038/s41428-022-00727-8

    Other Link: https://www.nature.com/articles/s41428-022-00727-8

  • Narrowband Emissive Thermally Activated Delayed Fluorescence Materials Reviewed

    Hyung Jong Kim, Takuma Yasuda

    Adv. Optical Mater. 2022, 10, 2201714.   2022.9

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.1002/adom.202201714

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/adom.202201714

  • Design of Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes

    Naoya Aizawa, In Seob Park, Takuma Yasuda

    AAPPS Bull. 2016, 26, 9-19.   2016.2

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  • 電子活性π共役液晶の新材料設計と機能化

    安田琢麿・加藤隆史

    液晶   2011.4

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  • Self-Assembly of Functional Columnar Liquid Crystals

    Takashi Kato, Takuma Yasuda, Yuko Kamikawa, and Masafumi Yoshio

    2009.1

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  • PAEs with Heteroaromatic Rings

    Takakazu Yamamoto, Isao Yamaguchi, and Takuma Yasuda

    2005.5

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  • Liquid-Crystalline Catenanes and Rotaxanes

    Junji Sakuda, Yasuda Takuma, Takashi Kato

    Isr. J. Chem. 2012, 52, 854-862.   2012.12

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  • Clicked Interlocked Molecules

    Ivan Aprahamian, Ognjen S. Miljanic, William R. Dichtel, Kyosuke Isoda, Takuma Yasuda, Takashi Kato, and J. Fraser Stoddart

    2007.10

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Professional Memberships

  • The Chemical Society of Japan

  • The Society of Polymer Science, Japan

  • American Chemical Society

  • The Society of Synthetic Organic Chemistry, Japan

  • Materials Research Society

  • The Japan Society of Applied Physics

  • The Japanese Photochemistry Association

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Committee Memberships

  • 有機合成化学協会九州山口支部   副支部長   Domestic

    2024.1 - 2025.12   

  • Organizer   Domestic

    2015.1 - 2015.12   

  • 有機合成化学協会九州山口支部   庶務幹事   Domestic

    2015.1 - 2015.12   

  • Organizer   Domestic

    2014.1 - 2014.12   

  • 有機合成化学協会九州山口支部   会計幹事   Domestic

    2014.1 - 2014.12   

  • Organizer   Domestic

    2013.1 - 2014.12   

  • 日本液晶学会   代議員   Domestic

    2012.9 - 2013.8   

  • 日本液晶学会   編集委員   Domestic

    2012.1 - 2013.12   

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Academic Activities

  • Bulletin of the Chemicl Society of Japan International contribution

    2024.1 - Present

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    Type:Academic society, research group, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2024

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:7

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Screening of academic papers

    Role(s): Peer review

    2023

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:20

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Screening of academic papers

    Role(s): Peer review

    2022

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:19

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Screening of academic papers

    Role(s): Peer review

    2021

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:25

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Aggregate International contribution

    2020.3 - Present

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    Type:Academic society, research group, etc. 

  • Advanced Optical Materials International contribution

    2020.3 - Present

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    Type:Academic society, research group, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2020

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:32

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Screening of academic papers

    Role(s): Peer review

    2019

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:63

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • プログラム委員 International contribution

    2018.7

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    Type:Competition, symposium, etc. 

  • Co-organizer

    ( Japan ) 2018.5

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2018

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:55

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Screening of academic papers

    Role(s): Peer review

    2017

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:14

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • 実行委員 International contribution

    2016.12

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2016

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:15

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Polymer Journal International contribution

    2015.9 - Present

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    Type:Academic society, research group, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2015

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:22

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • Organizer International contribution

    1st International Symposium of the Advanced Graduate Program on Molecular Systems for Devices  ( Hilton Fukuoka Sea Hawk Japan ) 2013.3

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    Type:Competition, symposium, etc. 

  • Organizer International contribution

    The 5th Yeungnam University-Kyushu University Joint Symposium  ( Kyushu University Japan ) 2011.2

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    Type:Competition, symposium, etc. 

    Number of participants:40

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Research Projects

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Class subject

  • Physical Chemistry B

    2023.10 - 2024.3   Second semester

  • 機能分子材料工学

    2023.10 - 2024.3   Second semester

  • 機能物質化学講究H

    2023.4 - 2024.3   Full year

  • 応用化学情報集約演習

    2023.4 - 2024.3   Full year

  • 応用化学学生セミナー第一

    2023.4 - 2024.3   Full year

  • 応用化学学生セミナー第二

    2023.4 - 2024.3   Full year

  • 応用化学研究企画演習

    2023.4 - 2024.3   Full year

  • 応用化学特別演習第二

    2023.4 - 2024.3   Full year

  • 工学概論(Ⅱ群)

    2023.4 - 2023.9   First semester

  • 応用化学実験第二

    2023.4 - 2023.9   First semester

  • Physical Chemistry B

    2022.10 - 2023.3   Second semester

  • 機能物質化学講究H

    2022.4 - 2023.3   Full year

  • 応用化学情報集約演習

    2022.4 - 2023.3   Full year

  • 応用化学学生セミナー第一

    2022.4 - 2023.3   Full year

  • 応用化学学生セミナー第二

    2022.4 - 2023.3   Full year

  • 応用化学研究企画演習

    2022.4 - 2023.3   Full year

  • 応用化学特別演習第二

    2022.4 - 2023.3   Full year

  • 物質科学工学実験第二

    2022.4 - 2022.9   First semester

  • Physical Chemistry B

    2021.10 - 2022.3   Second semester

  • 機能分子材料工学

    2021.10 - 2022.3   Second semester

  • 物質科学工学実験第二

    2021.4 - 2021.9   First semester

  • Physical Chemistry B

    2020.10 - 2021.3   Second semester

  • 物質科学工学実験第二

    2020.4 - 2020.9   First semester

  • Physical Chemistry B

    2019.10 - 2020.3   Second semester

  • 機能分子材料工学

    2019.10 - 2020.3   Second semester

  • 物質科学工学実験第二

    2019.4 - 2019.9   First semester

  • Physical Chemistry B

    2018.10 - 2019.3   Second semester

  • 物質科学工学実験第二

    2018.4 - 2018.9   First semester

  • Physical Chemistry B

    2017.10 - 2018.3   Second semester

  • 機能分子材料工学

    2017.10 - 2018.3   Second semester

  • 物質科学工学実験第二

    2017.4 - 2017.9   First semester

  • Physical Chemistry B

    2016.10 - 2017.3   Second semester

  • 物質科学工学実験第二

    2016.4 - 2016.9   First semester

  • Physical Chemistry B

    2015.10 - 2016.3   Second semester

  • 機能分子材料工学

    2015.10 - 2016.3   Second semester

  • 有機物質化学

    2014.10 - 2015.3   Second semester

  • 自動車用表示材料特論

    2014.10 - 2015.3   Second semester

  • 物理有機化学

    2014.10 - 2015.3   Second semester

  • Physical Chemistry B

    2014.10 - 2015.3   Second semester

  • 先端材料科学概論

    2014.4 - 2014.9   First semester

  • 物質科学工学実験第三

    2013.10 - 2014.3   Second semester

  • 自動車用表示材料特論

    2013.10 - 2014.3   Second semester

  • 物理有機化学

    2013.10 - 2014.3   Second semester

  • Physical Chemistry B

    2013.10 - 2014.3   Second semester

  • 先端材料科学概論

    2013.4 - 2013.9   First semester

  • 物質科学工学実験第三

    2012.10 - 2013.3   Second semester

  • 自動車用表示材料特論

    2012.10 - 2013.3   Second semester

  • 物理有機化学

    2012.10 - 2013.3   Second semester

  • Physical Chemistry B

    2012.10 - 2013.3   Second semester

  • 先端材料科学概論

    2012.4 - 2012.9   First semester

  • コアセミナー

    2012.4 - 2012.9   First semester

  • 安全学

    2011.10 - 2012.3   Second semester

  • 自動車用表示材料特論

    2011.10 - 2012.3   Second semester

  • 物質科学工学実験第三

    2011.10 - 2012.3   Second semester

  • 物理有機化学

    2011.10 - 2012.3   Second semester

  • 物質科学工学実験第二

    2011.4 - 2011.9   First semester

  • オートモーティブ先端材料科学概論

    2011.4 - 2011.9   First semester

  • コアセミナー

    2011.4 - 2011.9   First semester

  • 物質科学工学実験第三

    2010.10 - 2011.3   Second semester

  • 物理有機化学

    2010.10 - 2011.3   Second semester

  • コアセミナー

    2010.4 - 2010.9   First semester

  • オートモーティブ先端材料科学概論

    2010.4 - 2010.9   First semester

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FD Participation

  • 2016.6   Role:Participation   Title:ハラスメントの基礎知識,防止の心構え,具体的事例による研修

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.7   Role:Participation   Title:第4回応用化学部門FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2013.5   Role:Participation   Title:応用化学部門FD

    Organizer:Undergraduate school department

  • 2011.5   Role:Participation   Title:第3回応用化学教育FD

    Organizer:Undergraduate school department

  • 2010.4   Role:Participation   Title:第1回全学FD

    Organizer:University-wide

Outline of Social Contribution and International Cooperation activities

  • 高校生セミナー、実験教室、出前講義、オープンキャンパス等の活動を行っている。

Social Activities

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2023.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2020.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2019.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2018.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2017.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2016.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 文科省SSH 城南高校実験教室

    城南高校  2012.10

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    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2012.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 福岡県立八幡高校出前講義

    福岡県立八幡高校  2012.7

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    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 高分子学会九州支部 楽しい高校生実験教室

    2012.7

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    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 九大100年まつり 有機ELパネル展示

    九州大学  九州大学伊都キャンパス  2012.5

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 第2回OPERAクリスマス・サイエンス・レクチャー

    2011.12

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    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2011.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 化学への招待(高校生セミナー)

    九州大学  九州大学伊都キャンパス  2010.11

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 化学への招待 光と液晶の世界(高校生セミナー)

    2010.11

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    Audience: Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • オープンキャンパス

    九州大学  九州大学伊都キャンパス  2010.8

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    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

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Media Coverage

  • 「Molecular Switches: Re-colouring with redox」と題して、レドックスによる液晶性分子マシンの駆動と色調変化に関する研究が、同ウェブサイトでハイライトとして紹介された。 http://www.natureasia.com/asia-materials/highlight.php?id=655

    NPG Asia Materials (米国ネイチャーグループ提供)  2010.4

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    「Molecular Switches: Re-colouring with redox」と題して、レドックスによる液晶性分子マシンの駆動と色調変化に関する研究が、同ウェブサイトでハイライトとして紹介された。
    http://www.natureasia.com/asia-materials/highlight.php?id=655

  • 「π共役オリゴチオフェンを基盤とするナノ構造液晶」に関する論文が、材料科学分野の特に影響度の高い論文として選定され、著者インタビューが同社提供のウェブサイトで公開された。 http://sciencewatch.com/dr/fbp/2010/10febfbp/10febfbpKatoET/

    Science Watch (米国トムソン・ロイター提供)  2010.2

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    「π共役オリゴチオフェンを基盤とするナノ構造液晶」に関する論文が、材料科学分野の特に影響度の高い論文として選定され、著者インタビューが同社提供のウェブサイトで公開された。
    http://sciencewatch.com/dr/fbp/2010/10febfbp/10febfbpKatoET/