九州大学 研究者情報
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基本情報 研究活動 教育活動 社会活動
安田 琢麿(やすだ たくま) データ更新日:2024.04.12

教授 /  高等研究院


主な研究テーマ
高効率発光機能を有するπマテリアルと有機LED
キーワード:発光、有機合成、光学物性、有機EL、電界発光
2011.04.
πマテリアルの精密分子集積と高速電荷輸送
キーワード:分子集積、電荷輸送、移動度、有機トランジスタ
2011.04.
πマテリアルを用いた光電変換/クリーンエネルギー技術
キーワード:光電変換、有機太陽電池、ナノ構造、再生可能エネルギー
2011.04.
刺激や環境に応答するスマートπマテリアル
キーワード:スマートマテリアル、刺激応答分子
2011.04.
自己組織的にナノ超構造を形成する機能性液晶半導体
キーワード:液晶、半導体、自己組織化、有機デバイス
2010.04.
研究業績
主要著書
1. In Seob Park and Takuma Yasuda, 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.
, World Scientific, 2022.03.
2. Kyohei Matsuo, Naoya Aizawa, Takuma Yasuda, 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.
, Pan Stanford Publishing, 2019.04.
3. Takuma Yasuda and Takashi Kato, Supramolecular Soft Matter: Applications in Materials and Organic Electronics (Ed: T. Nakanishi)
“Advanced Systems of Supramolecular Liquid Crystals”, Chapter 14, pp. 283–299.
, Wiley, 2011.10.
主要原著論文
1. Sudhir K. Keshri, Guanting Liu, and Takuma Yasuda, Ultrafast Spin-Flip Exciton Conversion and Narrowband Sky-Blue Luminescence in a Fused Polycyclic Selenaborin Emitter, Front. Commun. 2024, 12, 1375552., 10.3389/fchem.2024.1375552, 2024.03, [URL].
2. Masaya Hagai, Naoto Inai, Takuma Yasuda, Kazuhiro J. Fujimoto, and Takeshi Yanai, Extended Theoretical Modeling of Reverse Intersystem Crossing for Thermally Activated Delayed Fluorescence Materials, Science Adv. 2024, 10, eadk3219., 10.1126/sciadv.adk3219, 2024.01, [URL].
3. Rajendra Kumar Konidena, Minlang Yang, and Takuma Yasuda, A π-Extended Tercarbazole-Core Multi-Resonance Delayed Fluorescence Emitter Exhibiting Efficient Narrowband Yellow Electroluminescence, Chem. Commun. 2023, 59, 10251-10254., 10.1039/D3CC03241H, 2023.07, [URL].
4. Narumi Sato, Sunbin Hwang, Yuichi Tsuchii, and Takuma Yasuda, Fused Polycyclic Lactam-Based π-Conjugated Polymers for Efficient Nonfullerene Organic Solar Cells, J. Mater. Chem. A 2023, 11, 9840–9845., 10.1039/D3TA01127E, 2023.04, [URL].
5. Yuichi Tsuchii, Taiki Menda, Sunbin Hwang, and Takuma Yasuda, Photovoltaic Properties of π-Conjugated Polymers Based on Fused Cyclic Imide and Amide Skeletons, Bull. Chem. Soc. Jpn. 2023, 96, 90–94., 10.1246/bcsj.20220336, 2023.02, [URL].
6. Weifan Wang, Fiona Hanindita, Yusei Tanaka, Kotaro Ochiai, Hiroyasu Sato, Yongxin Li, Takuma Yasuda, and Shingo Ito, π-Extended Pyrrole-Fused Heteropine: Synthesis, Properties, and Application in Organic Field-Effect Transistors, Angew. Chem. Int. Ed. 2023, 62, e202218176., 10.1002/anie.202218176, 2023.02, [URL].
7. Minlang Yang, Rajendra Kumar Konidena, So Shikita, and Takuma Yasuda, Facile Dimerization Strategy for Producing Narrowband Green Multi-Resonance Delayed Fluorescence Emitters, J. Mater. Chem. C 2023, 11, 917–922., 10.1039/D2TC04447A, 2022.11, [URL].
8. In Seob Park, Hyukgi Min, and Takuma Yasuda, Ultrafast Singlet–Triplet Exciton Interconversion in Narrowband Blue Organoboron Emitters Doped with Heavy Chalcogens, Angew. Chem. Int. Ed. 2022, 61, e202205684., 10.1002/anie.202205684, 2022.08, [URL], 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..
9. Hyukgi Min, In Seob Park, and Takuma Yasuda, Blue Thermally Activated Delayed Fluorescence with Sub-Microsecond Short Exciton Lifetimes: Acceleration of Triplet–Singlet Spin Interconversion via Quadrupolar Charge-Transfer States, Adv. Optical Mater. 2022, 10, 2200290., 10.1002/adom.202200290, 2022.07.
10. So Shikita, Takunori Harada, and Takuma Yasuda, Axially Chiral 1,1’-Bicarbazolyls with Near-Ultraviolet Circularly Polarized Luminescence, Chem. Commun. 2022, 58, 4849-4852., 10.1039/D2CC00936F, 2022.03, [URL].
11. In Seob Park, Minlang Yang, Hiromoto Shibata, Natsuki Amanokura, and Takuma Yasuda, Achieving Ultimate Narrowband and Ultrapure Blue Organic Light-Emitting Diodes Based on Polycyclo-Heteraborin Multi-Resonance Delayed Fluorescence Emitters, Adv. Mater. 2022, 34, 2107951., 10.1002/adma.202107951, 2021.12, [URL], To achieve an ultimate wide color gamut for ultrahigh-definition displays, there is great demand for the development of organic light-emitting diodes (OLEDs) enabling monochromatic, ultrapure blue electroluminescence (EL). Herein, high-efficiency and ultrapure blue OLEDs based on polycyclo-heteraborin multi-resonance thermally activated delayed fluorescence (MR-TADF) materials, BOBO-Z, BOBS-Z, and BSBS-Z, are reported. The key to the design of the present luminophores is the exquisite combination and interplay of multiple boron, nitrogen, oxygen, and sulfur heteroatoms embedded in a fused polycyclic π-system. Comprehensive photophysical and computational investigations of this family of MR-TADF materials reveal that the systematic implementation of chalcogen (oxygen and sulfur) atoms can finely modulate the emission color while maintaining a narrow bandwidth, as well as the spin-flipping rates between the excited singlet and triplet states. Consequently, OLEDs based on BOBO-Z, BOBS-Z, and BSBS-Z demonstrate narrowband and ultrapure blue EL emission, with peaks at 445–463 nm and full width at half maxima of 18–23 nm, leading to Commission Internationale de l'Éclairage-y coordinates in the range of 0.04–0.08. Particularly, for OLEDs incorporating sulfur-doped BOBS-Z and BSBS-Z, notably high maximum external EL quantum efficiencies of 26.9% and 26.8%, respectively, and small efficiency roll-offs are achieved concurrently..
12. Hiroshi Tasaki, So Shikita, In Seob Park, and Takuma Yasuda, Ester-Functionalized Thermally Activated Delayed Fluorescence Materials, J. Mater. Chem. C 2022, 10, 4574-4578., 10.1039/D1TC04933J, 2021.11, [URL].
13. Tatsuya Mori, Yuji Yamaguchi, So Kawata, and Takuma Yasuda, An S-Shaped Thienoacene Semiconductor Forming Unique Cruciform Lamellar Packing via a 2D Interaction Network of π-Stacking and Chalcogen Bonding, J. Mater. Chem. C 2021, 9, 13090-13093., 10.1039/D1TC03871K, 2021.09, [URL].
14. In Seob Park, Hyukgi Min, Jong Uk Kim, and Takuma Yasuda, Deep-Blue OLEDs Based on Organoboron–Phenazasiline-Hybrid Delayed Fluorescence Emitters Concurrently Achieving 30% External Quantum Efficiency and Small Efficiency Roll-Off, Adv. Optical Mater. 2021, 9, 2101282., 10.1002/adom.202101282, 2021.09, [URL].
15. Minlang Yang, So Shikita, Hyukgi Min, In Seob Park, Hiromoto Shibata, Natsuki Amanokura, and Takuma Yasuda, Wide-Range Color Tuning of Narrowband Emissions in Multi-Resonance Organoboron Delayed Fluorescence Materials through Rational Imine/Amine Functionalization, Angew. Chem. Int. Ed. 2021, 60, 23142-23147., 10.1002/anie.202109335, 2021.08, [URL].
16. Masakazu Nagata, Hyukgi Min, Erika Watanabe, Hiroki Fukumoto, Yoshiyuki Mizuhata, Norihiro Tokitoh, Tomohiro Agou, and Takuma Yasuda, Fused-Nonacyclic Multi-Resonance Delayed Fluorescence Emitter Based on Ladder-Thiaborin Exhibiting Narrowband Sky-Blue Emission with Accelerated Reverse Intersystem Crossing, Angew. Chem. Int. Ed. 2021, 60, 20280-20285., 10.1002/anie.202108283, 2021.07, [URL].
17. So Shikita, Go watanabe, Dai Kanouchi, Junya Saito, and Takuma Yasuda, Alternating Donor–Acceptor π-Conjugated Macrocycle Exhibiting Efficient Thermally Activated Delayed Fluorescence and Spontaneous Horizontal Molecular Orientation, Adv. Photonics Res. 2021, 2, 2100021., 10.1002/adpr.202100021, 2021.03, [URL].
18. Naoya Aizawa, Akinobu Matsumoto, and Takuma Yasuda, Thermal Equilibration between Singlet and Triplet Excited States in Organic Fluorophore for Submicrosecond Delayed Fluorescence, Science Adv. 2021, 7, eabe5769., 10.1126/sciadv.abe5769, 2021.02, [URL].
19. Hyukgi Min, In Seob Park, and Takuma Yasuda, cis-Quinacridone-Based Delayed Fluorescence Emitters: Seemingly Old but Renewed Functional Luminogens, Angew. Chem. Int. Ed. 2021, 60, 7643-7648., 10.1002/anie.202016914, 2021.01, [URL].
20. Tatsuya Mori and Takuma Yasuda, U-Shaped Heteroacenes Embedded with Heavy Chalcogen Atoms: Unique Bilayer Self-Organization of Crooked π-Cores Enabling Efficient Charge Transport, Adv. Electron. Mater. 2021, 7, 2001052., 10.1002/aelm.202001052, 2021.01, [URL].
21. In Seob Park, Hyukgi Min, and Takuma Yasuda, Phenyl-Triggered Photophysical Switching between Normal Fluorescence and Delayed Fluorescence in Phthalonitrile-Based Luminophores, Aggregate 2021, 2, 145-150., 10.1002/agt2.14, 2021.01, [URL].
22. Minlang Yang, In Seob Park, and Takuma Yasuda, Full-Color, Narrowband, and High-Efficiency Electroluminescence from Boron and Carbazole Embedded Polycyclic Heteroaromatics, J. Am. Chem. Soc. 2020, 142, 19468-19472., 10.1021/jacs.0c10081, 2020.11, [URL].
23. Taiki Menda, Tatsuya Mori, and Takuma Yasuda, Regiocontrolled Synthesis of Ester-Functionalized Polythiophenes via Direct Arylation Polycondensation, Polym. J. 2021, 53、403-408., 10.1038/s41428-020-00421-7, 2020.12, [URL].
24. Yuji Yamaguchi, Yuka Kojiguchi, So Kawata, Tatsuya Mori, Kazuo Okamoto, Masanori Tsutsui, Tomoyuki Koganezawa, Hiroshi Katagiri, and Takuma Yasuda, Solution-Processable Organic Semiconductors Featuring S-Shaped Dinaphthothienothiophene (S-DNTT): Effects of Alkyl Chain Length on Self-Organization and Carrier Transport Properties, Chem. Mater. 2020, 32, 5350-5360., 10.1021/acs.chemmater.0c01740, 2020.05, [URL].
25. Minlang Yang, In Seob Park, Yasuhiro Miyashita, Katsunori Tanaka, Takuma Yasuda, Mechanochromic Delayed Fluorescence Switching in Propeller‐Shaped Carbazole–Isophthalonitrile Luminogens with Stimuli‐Responsive Intramolecular Charge‐Transfer Excited States, Angew. Chem. Int. Ed. 2020, 59, 13955-13961., 10.1002/anie.202005584, 2020.05, [URL].
26. Tatsuya Mori, Hideaki Komiyama, Takahiro Ihikawa, Takuma Yasuda, A Liquid-Crystalline Semiconducting Polymer Based on Thienylene–Vinylene–Thienylene: Enhanced Hole Mobilities by Mesomorphic Molecular Ordering and Thermoplastic Shape-Deformable Characteristics, Polym. J. 2020, 52, 313-321., 10.1038/s41428-019-0282-4, 2020.02, [URL].
27. Hyukgi Min, In Seob Park, Takuma Yasuda, Dipolar and Quadrupolar Luminophores Based on 1,8‐Dimethylcarbazole−Triazine Conjugates for High‐Efficiency Blue Thermally Activated Delayed Fluorescence OLEDs, ChemPhotoChem 2020, 4, 82-88., 10.1002/cptc.201900186, 2019.10, [URL].
28. Tomohiro Agou, Kyohei Matsuo, Rei Kawano, In Seob Park, Takaaki Hosoya, Hiroki Fukumoto, Toshio Kubota, Yoshiyuki Mizuhata, Norihiro Tokitoh, Takuma Yasuda, Pentacyclic Ladder-Heteraborin Emitters Exhibiting High-Efficiency Blue Thermally Activated Delayed Fluorescence with an Ultrashort Emission Lifetime, ACS Mater. Lett. 2020, 2, 28-34., 10.1021/acsmaterialslett.9b00433, 2019.11, [URL].
29. Kyohei Matsuo, Takuma Yasuda, Blue Thermally Activated Delayed Fluorescence Emitters Incorporating Acridan Analogues with Heavy Group 14 Elements for High-Efficiency Doped and Non-Doped OLEDs, Chem. Sci. 2019, 10, 10687-10697., 10.1039/C9SC04492B, 2019.10, [URL].
30. Ryota Arai, Seiichi Furukawa, Narumi Sato, Takuma Yasuda, Organic Energy-Harvesting Devices Achieving Power Conversion Efficiencies over 20% under Ambient Indoor Lighting, J. Mater. Chem. A 2019, 7, 20187-20192., 10.1039/C9TA06694B, 2019.08, [URL].
31. Seiichi Furukawa, Takuma Yasuda, Strategic End-Halogenation of π-Conjugated Small Molecules Enabling Fine Morphological Control and Enhanced Performance of Organic Solar Cells , J. Mater. Chem. A 2019, 7, 14806-14815., 10.1039/C9TA03869H, 2019.05, [URL].
32. Ryota Arai, Seiichi Furukawa, Yu Hidaka, Hideaki Komiyama, Takuma Yasuda, High-Performance Organic Energy-Harvesting Devices and Modules for Self-Sustainable Power Generation under Ambient Indoor Lighting Environments, ACS Appl. Mater. Interfaces 2019, 11, 9259-9264., 10.1021/acsami.9b00018, 2019.02, [URL].
33. Kyohei Matsuo, Takuma Yasuda, Boronate- and Borinate-Based π-Systems for Blue Thermally Activated Delayed Fluorescence Materials, Chem. Commun. 2019, 55, 2501-2504., 10.1039/C8CC10282A, 2019.02, [URL].
34. Seiichi Furukawa, Hideaki Komiyama, Naoya Aizawa, Takuma Yasuda, High-Crystallinity π-Conjugated Small Molecules Based on Thienylene-Vinylene-Thienylene: Critical Role of Self-Organization in Photovoltaic, Charge-Transport, and Morphological Properties, ACS Appl. Mater. Interfaces 2018, 10, 42756-42765., 10.1021/acsami.8b17056, 2018.11, [URL].
35. Kohei Isayama, Naoya Aizawa, Jun Yun Kim, Takuma Yasuda, Modulating Photo- and Electroluminescence in a Stimuli-Responsive π-Conjugated Donor–Acceptor Molecular System, Angew. Chem. Int. Ed. 2018, 57, 11982-11986., 10.1002/anie.201806863, 2018.09, [URL].
36. In Seob Park, Kyohei Matsuo, Naoya Aizawa, Takuma Yasuda, High-Performance Dibenzoheteraborin-Based Thermally Activated Delayed Fluorescence Emitters: Molecular Architectonics for Concurrently Achieving Narrow-Band Emission and Efficient Triplet–Singlet Spin Conversion, Adv. Funct. Mater. 2018, 28, 1802031., 10.1002/adfm.201802031, 2018.08, [URL].
37. Hideaki Komiyama, Takahiro To, Seiichi Furukawa, Yu Hidaka, Woong Shin, Takahiro Ichikawa, Ryota Arai, Takuma Yasuda, Oligothiophene–Indandione-Linked Narrow-Band Gap Molecules: Impact of π-Conjugated Chain Length on Photovoltaic Performance, ACS Appl. Mater. Interfaces 2018, 10, 11083-11093., 10.1021/acsami.8b01233, 2018.05.
38. Jiyoung Lee, Naoya Aizawa, Takuma Yasuda, Molecular Engineering of Phosphacycle-Based Thermally Activated Delayed Fluorescence Materials for Deep-Blue OLEDs, J. Mater. Chem. C 2018, 6, 3578-3583., 10.1039/C7TC05709A, 2018.05.
39. Ryuhei Furue, Kyohei Matsuo, Yasuhiko Ashikari, Hirohito Ooka, Natsuki Amanokura, Takuma Yasuda, Highly Efficient Red–Orange Delayed Fluorescence Emitters Based on Strong π-Accepting Dibenzophenazine and Dibenzoquinoxaline Cores: Toward a Rational Pure-Red OLED Design, Adv. Optical Mater. 2018, 6, 1701147., 10.1002/adom.201701147, 2018.05.
40. Tatsuya Oyama, Tatsuya Mori, Tomohiro Hashimoto, Muneaki Kamiya, Takahiro Ichikawa, Hideaki Komiyama, Yu Seok Yang, Takuma Yasuda, 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, Adv. Electron. Mater. 2018, 4, 1700390., 10.1002/aelm.201700390, 2018.05.
41. Jiyoung Lee, Naoya Aizawa, Takuma Yasuda, Isobenzofuranone- and Chromone-Based Blue Delayed Fluorescence Emitters with Low Efficiency Roll-Off in Organic Light-Emitting Diodes , Chem. Mater. 2017, 29, 8012-8020., 10.1021/acs.chemmater.7b03371, 2017.05.
42. Naoya Aizawa, So Shikita, Takuma Yasuda, Spin-Dependent Exciton Funneling to a Dendritic Fluorophore Mediated by a Thermally Activated Delayed Fluorescence Material as an Exciton-Harvesting Host, Chem. Mater. 2017, 29, 7014-7022., 10.1021/acs.chemmater.7b02606, 2017.05.
43. Kyohei Matsuo, Takuma Yasuda, Enhancing Thermally Activated Delayed Fluorescence Characteristics by Intramolecular B–N Coordination in a Phenylpyridine-Containing Donor–Acceptor π-System, Chem. Commun. 2017, 53, 8723-8726., 10.1039/C7CC04875K, 2017.05.
44. Tatsuya Mori, Tatsuya Oyama, Hideaki Komiyama, Takuma Yasuda, Solution-Grown Unidirectionally Oriented Crystalline Thin Films of a U-Shaped Thienoacene-Based Semiconductor for High-Performance Organic Field-Effect Transistors, J. Mater. Chem. C 2017, 5, 5872-5876., 10.1039/C7TC01836C, 2017.05.
45. Tatsuya Oyama, Yu Seok Yang, Kyohei Matsuo, Takuma Yasuda, Effects of Chalcogen Atom Substitution on the Optoelectronic and Charge-Transport Properties in Picene-Type π-Systems, Chem. Commun. 2017, 53, 3814-3817., 10.1039/C7CC01292F, 2017.05.
46. Hiroki Tachibana, Naoya Aizawa, Yu Hidaka, Takuma Yasuda, Tunable Full-Color Electroluminescence from All-Organic Optical Upconversion Devices by Near-Infrared Sensing, ACS Photonics 2017, 4, 223-227., 10.1021/acsphotonics.6b00964, 2017.05.
47. In Seob Park, Hongwook Seo, Hiroki Tachibana, Joung Uk Kim, Jinbo Zhang, Se Mo Son, Takuma Yasuda, Cyclohexane-Coupled Bipolar Host Materials with High Triplet Energies for Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence, ACS Appl. Mater. Interfaces 2017, 9, 2693-2700., 10.1021/acsami.6b13002, 2017.05.
48. Jiyoung Lee, In Seob Park, Takuma Yasuda, Thermally Activated Delayed Fluorescence Properties of Regioisomeric Xanthone-Based Twisted Intramolecular Charge-Transfer Luminophores, Bull. Chem. Soc. Jpn. 2017, 90, 231-236., 10.1246/bcsj.20160380, 2017.05.
49. Jiyoung Lee, Naoya Aizawa, Masaki Numata, Chihaya Adachi, Takuma Yasuda, Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence, Adv. Mater. 2017, 29, 1604856., 10.1002/adma.201604856, 2017.05.
50. In Seob Park, Hideaki Komiyama, Takuma Yasuda, Pyrimidine-Based Twisted Donor–Acceptor Delayed Fluorescence Molecules: A New Universal Platform for Highly Efficient Blue Electroluminescence, Chem. Sci. 2017, 8, 953-960., 10.1039/C6SC03793C, 2017.05.
51. Naoya Aizawa, Chao-Jen Tsou, In Seob Park, Takuma Yasuda, Aggregation-Induced Delayed Fluorescence from Phenothiazine-Containing Donor–Acceptor Molecules for High-Efficiency Non-Doped Organic Light-Emitting Diodes, Polym. J. 2017, 49, 197-202., 10.1038/pj.2016.82, 2017.05.
52. Seiichi Furukawa, Hideaki Komiyama, Takuma Yasuda, Controlling Open-Circuit Voltage in Organic Solar Cells by Terminal Fluoro-Functionalization of Narrow-Bandgap π-Conjugated Molecules, J. Phys. Chem. C 2016, 120, 21235-21241., 10.1021/acs.jpcc.6b06758, 2016.05.
53. In Seob Park, Jiyoung Lee, Takuma Yasuda, High-Performance Blue Organic Light-Emitting Diodes with 20% External Quantum Efficiency Based on Pyrimidine-Containing Thermally Activated Delayed Fluorescence Emitters, J. Mater. Chem. C 2016, 4, 7911-7916., 10.1039/C6TC02027E, 2016.05.
54. Ryuhei Furue, Takuro Nishimoto, In Seob Park, Jiyoung Lee, Takuma Yasuda, Aggregation-Induced Delayed Fluorescence Based on Donor/Acceptor-Tethered Janus Carborane Triads: Unique Photophysical Properties for Non-Doped OLEDs, Angew. Chem. Int. Ed. 2016, 55, 7171-7175., 10.1002/anie.201603232, 2016.03.
55. Sae Youn Lee, Chihaya Adachi, Takuma Yasuda, High-Efficiency Blue Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives, Adv. Mater. 2016, 28, 4626-4631., 10.1002/adma.201506391, 2016.03.
56. Sae Youn Lee, Takuma Yasuda, Hideaki Komiyama, Jiyoung Lee, Chihaya Adachi, Thermally Activated Delayed Fluorescence Polymers for Efficient Solution-Processed Organic Light-Emitting Diodes, Adv. Mater. 2016, 28, 4019-4024., 10.1002/adma.201505026, 2016.03.
57. In Seob Park, Sae Youn Lee, Chihaya Adachi, Takuma Yasuda, Full-Color Delayed Fluorescence Materials Based on Wedge-Shaped Phthalonitriles and Dicyanopyrazines: Systematic Design, Tunable Photophysical Properties, and OLED Performance, Adv. Funct. Mater. 2016, 26, 1813-1821., 10.1002/adfm.201505106, 2016.03.
58. In Seob Park, Masaki Numata, Chihaya Adachi, Takuma Yasuda, A Phenazaborin-Based High-Efficiency Blue Delayed Fluorescence Material, Bull. Chem. Soc. Jpn. 2016, 89, 375-377., 10.1246/bcsj.20150399, 2016.03.
59. Masaki Numata, Takuma Yasuda, Chihaya Adachi, High Efficiency Pure Blue Thermally Activated Delayed Fluorescence Molecules Having 10H-Phenoxaborin and Acridan Units, Chem. Commun. 2015, 51, 9443-9446., 2015.04.
60. Qisheng Zhang, Daniel Tsang, Hirokazu Kuwabara, Yasuhiro Hatae, Bo Li, Takehiro Takahashi, Sae Youn Lee, Takuma Yasuda, Chihaya Adachi, Nearly 100% Internal Quantum Efficiency in Undoped Electroluminescent Devices Employing Pure Organic Emitters, Adv. Mater. 2015, 27, 2096–2100., 2015.04.
61. Jiyoung Lee, Katsuyuki Shizu, Hiroyuki Tanaka, Hajime Nakanotani, Takuma Yasuda, Hironori Kaji, Chihaya Adachi, Controlled Emission Color and Singlet-Triplet Energy Gap of Dihydrophenazine-Based Thermally Activated Delayed Fluorescence Emitters, J. Mater. Chem. C 2015, 4, 2175–2181., 2015.04.
62. Woong Shin, Takuma Yasuda, Yu Hidaka, Go Watanabe, Ryota Arai, Keiro Nasu, Takahiro Yamaguchi, Wakako Murakami, Kengo Makita, CHIHAYA ADACHI, pi-Extended Narrow-Bandgap Diketopyrrolopyrrole-Based Oligomers for Solution-Processed Inverted Organic Solar Cells, Adv. Energy Mater. 2014, 4, 1400879., 2014.04.
63. Sae Youn Lee, Takuma Yasuda, Yu Seok Yang, Qisheng Zhang, CHIHAYA ADACHI, Luminous Butterflies: Efficient Exciton Harvesting by Benzophenone Derivatives for Full-Color Delayed Fluorescence OLEDs, Angew. Chem. Int. Ed. 2014, 53, 6402–6406., 2014.04.
64. Yu Seok Yang, Takuma Yasuda, Hayato Kakizoe, Hiroyuki Mieno, Hiori Kino, Yoshitaka Tateyama, CHIHAYA ADACHI, 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, Chem. Commun. 2013, 49, 6483-6485. , 2013.06.
65. Woong Shin, Takuma Yasuda, Go Watanabe, Yu Seok Yang, CHIHAYA ADACHI, Self-Organizing Mesomorphic Diketopyrrolopyrrole Derivatives for Efficient Solution-Processed Organic Solar Cells, Chem. Mater. 2013, 25, 2549-2556., 2013.06.
66. Jun Yun Kim, Yasuda Takuma, Yu Seok Yang, ADACHI CHIHAYA, Bifunctional Star-Burst Amorphous Molecular Materials for OLEDs: Achieving Highly Efficient Solid-State Luminescence and Carrier Transport Induced by Spontaneous Molecular Orientation, Adv. Mater. 2013, 25, 2666-2671., 2013.03.
67. Yu Seok Yang, Yasuda Takuma, ADACHI CHIHAYA, Organic Single-Crystal Transistors Based on pi-Extended Heteroheptacene Microribbons, Bull. Chem. Soc. Jpn. 2012, 85, 1186-1191., 85, 2012.10.
68. Ryosuke Kondo, Takuma Yasuda,* Yu Seok Yang, Jun Yun Kim, and Chihaya Adachi*, Highly Luminescent pi-Conjugated Dithienometalloles: Photophysical Properties and Their Application in Organic Light-Emitting Diodes, J. Mater. Chem. 2012, 22, 16810-16816, 10.1039/c2jm33526c, 22, 16810-16816, 2012.07.
69. Takuma Yasuda, Tomohiro Shimizu, Feng Liu, Goran Ungar, and Takashi Kato, Electro-Functional Octupolar π-Conjugated Columnar Liquid Crystals, J. Am. Chem. Soc. 2011, 133, 13437-13444., 133, 13437-13444, 2011.11.
70. Takuma Yasuda, Kana Tanabe, Toru Tsuji, Karla K. Coti, Ivan Aprahamian, J. Fraser Stoddart, and Takashi Kato, A Redox-Switchable [2]Rotaxane in a Liquid-Crystalline State, Chem. Commun. 2010, 46, 1224–1226., 46, 1224–1226, 2010.05, 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である。.
71. Kyosuke Isoda, Takuma Yasuda, and Takashi Kato, Truxene-Based Columnar Liquid Crystals: Self-Assembled Structures and Electro-Active Properties, Chem. Asian J. 2009, 4, 1619–1625., 4, 1619–1625, 2009.06.
72. Takuma Yasuda, Hirotaka Ooi, Jun Morita, Yusuke Akama, Kiyoshi Minoura, Masahiro Funahashi, Takeshi Shimomura, and Takashi Kato, π-Conjugated Oligothiophene-Based Polycatenar Liquid Crystals: Self-Organization and Photoconductive, Luminescent, and Redox Properties, Adv. Funct. Mater. 2009, 19, 411–419., 19, 411–419, 2008.12.
73. Takuma Yasuda, Kimiyasu Namekawa, Takayuki Iijima, and Takakazu Yamamoto, New Luminescent 1,2,4-Triazole/Thiophene Alternating Copolymers: Synthesis, Characterization, and Optical Properties, Polymer 2007, 48, 4375–4384., 48, 4375–4384, 2007.05.
74. Ivan Aprahamian, Takuma Yasuda, Taichi Ikeda, Sourav Saha, William R. Dichtel, Kyosuke Isoda, Takashi Kato, and J. Fraser Stoddart, A Liquid-Crystalline Bistable [2]Rotaxane, Angew. Chem. Int. Ed. 2007, 46, 4675–4679., 46, 4675–4679, 2007.05.
75. Takuma Yasuda, Kenji Kishimoto, and Takashi Kato, Columnar Liquid Crystalline π-Conjugated Oligothiophenes, Chem. Commun. 2006, 3399–3401., 3399–3401, 2006.07.
76. Takuma Yasuda, Yoshimasa Sakai, Shinji Aramaki, and Takakazu Yamamoto, 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, Chem. Mater. 2005, 17, 6060–6068., 17, 6060–6068, 2005.11.
77. Takuma Yasuda, Tatsuya Imase, and Takakazu Yamamoto, Synthesis, Characterization, and Optical and Electrochemical Properties of New 2,1,3-Benzoselenadiazole-Based CT-Type Copolymers, Macromolecules 2005, 38, 7378–7385., 38, 7378–7385, 2005.07.
78. Takakazu Yamamoto, Takuma Yasuda, Yoshimasa Sakai, and Shinji Aramaki, Ambipolar Field-Effect Transistor (FET) and Redox Characteristics of a π-Conjugated Thiophene/1,3,4-Thiadiazole CT-Type Copolymer, Macromol. Rapid Commun. 2005, 26, 1214–1217., 26, 1214–1217, 2005.08.
79. Takuma Yasuda, Tatsuya Imase, Yoshiyuki Nakamura, and Takakazu Yamamoto, 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, Macromolecules 2005, 38, 4687–4697., 38, 4687–4697, 2005.04.
80. Takuma Yasuda, Tatsuya Imase, Shintaro Sasaki, and Takakazu Yamamoto, 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, Macromolecules 2005, 38, 1500–1503., 38, 1500–1503, 2005.01.
主要総説, 論評, 解説, 書評, 報告書等
1. Sunbin Hwang, Takuma Yasuda, Indoor Photovoltaic Energy Harvesting Based on Semiconducting π-Conjugated Polymers and Oligomeric Materials toward Future IoT Applications, Polym. J. 2023, 55, 297–316., 10.1038/s41428-022-00727-8, 2023.04, [URL].
2. Hyung Jong Kim, Takuma Yasuda, Narrowband Emissive Thermally Activated Delayed Fluorescence Materials, Adv. Optical Mater. 2022, 10, 2201714., 10.1002/adom.202201714, 2022.09, [URL].
3. Naoya Aizawa, In Seob Park, Takuma Yasuda, Design of Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes, AAPPS Bull. 2016, 26, 9-19., 2016.02.
4. 安田琢麿・加藤隆史, 電子活性π共役液晶の新材料設計と機能化, 液晶, 2011.04.
5. Takashi Kato, Takuma Yasuda, Yuko Kamikawa, and Masafumi Yoshio, Self-Assembly of Functional Columnar Liquid Crystals, Chem. Commun. 2009, 729–739., 2009.01.
6. Takakazu Yamamoto, Isao Yamaguchi, and Takuma Yasuda, PAEs with Heteroaromatic Rings, Adv. Polym. Sci. 2005, 177, 181–208., 2005.05.
学会活動
所属学会名
光化学協会
応用物理学会
Materials Research Society
有機合成化学協会
American Chemical Society
高分子学会
日本化学会
学協会役員等への就任
2024.01~2025.12, 有機合成化学協会九州山口支部, 副支部長.
2015.01~2015.12, 有機合成化学協会九州山口支部, 幹事.
2014.01~2014.12, 有機合成化学協会九州山口支部, 幹事.
2013.01~2014.12, 有機合成化学協会九州山口支部, 幹事.
2012.09~2013.08, 日本液晶学会, 代議員.
2012.01~2013.12, 日本液晶学会, 編集委員.
学会大会・会議・シンポジウム等における役割
2018.07~2018.07.01, 27th International Liquid Crystal Conference (ILCC2018), プログラム委員.
2018.05~2018.05.01, 第28回万有福岡シンポジウム, Co-organizer.
2016.12~2016.12, The 11th SPSJ International Polymer Conference (IPC2016), 実行委員.
2013.03.28~2013.03.23, 1st International Symposium of the Advanced Graduate Program on Molecular Systems for Devices, Organizer.
2011.02.10~2011.02.10, The 5th Yeungnam University-Kyushu University Joint Symposium, Organizer.
学会誌・雑誌・著書の編集への参加状況
2024.01, Bulletin of the Chemicl Society of Japan, 国際, 編集委員.
2020.03, Aggregate, 国際, Editorial Board.
2020.03, Advanced Optical Materials, 国際, Editorial Advisory Board.
2015.09, Polymer Journal, 国際, 編集委員.
2011.10~2014.03, 日本液晶学会誌 液晶, 国内, 編集委員.
学術論文等の審査
年度 外国語雑誌査読論文数 日本語雑誌査読論文数 国際会議録査読論文数 国内会議録査読論文数 合計
2024年度
2023年度 20  20 
2022年度 19  19 
2021年度 25  25 
2020年度 32  32 
2019年度 63  63 
2018年度 55  55 
2017年度 14  14 
2016年度 15  15 
2015年度 22  22 
2014年度 18  18 
2013年度 20  20 
2012年度 14  22 
2011年度 13  13 
2010年度 13  14 
2009年度 11  11 
2008年度
受賞
第56回 市村地球環境学術賞, 市村清新技術財団, 2024.03.
共同研究等活動表彰(令和5年度), 九州大学, 2023.11.
日本化学会BCSJ賞, 日本化学会, 2023.02.
有機合成化学協会 富士フイルム・機能性材料化学賞, 有機合成化学協会, 2023.02.
共同研究等活動表彰(令和4年度), 九州大学, 2022.11.
共同研究等活動表彰(令和3年度), 九州大学, 2021.11.
共同研究等活動表彰(令和2年度), 九州大学, 2020.11.
Publons Global Peer Review Awards 2019, Publons, 2019.09.
第21回 丸文学術賞, 丸文財団, 2018.03.
研究活動表彰(平成28年度), 九州大学, 2016.11.
研究活動表彰(平成27年度), 九州大学, 2015.11.
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 , 文部科学省, 2015.04.
研究活動表彰(平成26年度), 九州大学, 2014.11.
日本化学会進歩賞, 日本化学会, 2014.03.
高分子学会日立化成賞, 高分子学会, 2013.09.
有機合成化学協会九州山口支部 奨励賞, 有機合成化学協会九州山口支部, 2013.06.
日本化学会BCSJ賞, 日本化学会, 2012.11.
日本化学会 優秀講演賞(学術), 日本化学会, 2012.04.
有機合成化学協会 研究企画賞, 有機合成化学協会, 2011.02.
日本液晶学会賞奨励賞, 日本液晶学会, 2010.09.
日本化学会 優秀講演賞(学術), 日本化学会, 2009.04.
第17回日本MRS学術シンポジウム奨励賞, 日本MRS, 2007.01.
日本液晶学会虹彩賞, 日本液晶学会, 2006.09.
手島記念研究賞 博士論文賞, 手島工業教育資金団, 2006.02.

九大関連コンテンツ

pure2017年10月2日から、「九州大学研究者情報」を補完するデータベースとして、Elsevier社の「Pure」による研究業績の公開を開始しました。