| Takuma Yasuda | Last modified date：2024.04.12 |
Professor /
Institute for Advanced Study
Papers
| 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. | Hiroki Ikebe, Kohei Nakao, Eri Hisamura, Minori Furukori, Yasuo Nakayama, Takuya Hosokai, Minlang Yang, Guanting Liu, Takuma Yasuda, and Ken Albrecht, Thermally Activated Delayed Fluorescence Carbazole-Triazine Dendrimer with Bulky Substituents, Aggregate 2024, 5, e405., 10.1002/agt2.405, 2024.02, [URL]. |
| 3. | 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]. |
| 4. | Shintaro Kohata, Hajime Nakanotani, Youhei Chitose, Takuma Yasuda, Youichi Tsuchiya, and Chihaya Adachi, Anti-Stokes Luminescence in Multi-Resonance-Type Thermally-Activated Delayed Fluorescence Molecules, Angew. Chem. Int. Ed. 2023, 62, e202312326., 10.1002/anie.202312326, 2023.10, [URL]. |
| 5. | 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]. |
| 6. | 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]. |
| 7. | Tsutomu Ishi-i, Rihoko Kichise, In Seob Park, Takuma Yasuda, and Taisuke Matsumoto, Room Temperature Phosphorescence in Longer-Wavelength Red Light Region Found in Benzothiadiazole-Based Dyes, J. Mater. Chem. C 2023, 11, 3003–3009., 10.1002/cptc.202200287, 2023.02, [URL]. |
| 8. | Yuya Tanabe, Hirotaka Tsutsui, Shinya Matsuda, So Shikita, Takuma Yasuda, and Kyosuke Isoda, Pyromellitic-Diimide-Based Liquid Material Forming an Exciplex with Naphthalene, ChemPhotoChem 2023, 7, e202200287., 10.1002/cptc.202200287, 2023.04, [URL]. |
| 9. | 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]. |
| 10. | 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]. |
| 11. | Ru Feng, Tatsuya Mori, Takuma Yasuda, Hiroyuki Furuta, and Soji Shimizu, Panchromatic Small-Molecule Organic Solar Cells Based on a Pyrrolopyrrole Aza-BODIPY with a Small Energy Loss, Dyes Pigm. 2023, 210, 111020., 10.1016/j.dyepig.2022.111020, 2023.02, [URL]. |
| 12. | 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]. |
| 13. | 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.. |
| 14. | 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. |
| 15. | 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]. |
| 16. | 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.. |
| 17. | 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]. |
| 18. | 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]. |
| 19. | 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]. |
| 20. | 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]. |
| 21. | 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]. |
| 22. | Tsutomu Ishi-i, Honoka Tanaka, Rihoko Kichise, Christopher Davin, Takaaki Matsuda, Naoya Aizawa, In Seob Park, Takuma Yasuda, and Taisuke Matsumoto, Regulation of Multicolor Fluorescence Changes Found in Donor–Acceptor-Type Mechanochromic Fluorescent Dyes, Chem. Asian J. 2021, 16, 2136-2145., 10.1002/asia.202100538, 2021.06, [URL]. |
| 23. | 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]. |
| 24. | 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]. |
| 25. | 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]. |
| 26. | 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]. |
| 27. | 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]. |
| 28. | 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]. |
| 29. | 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]. |
| 30. | 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]. |
| 31. | Ru Feng, Narumi Sato, Mayuka Nomura, Akinori Saeki, Hajime Nakanotani, Chihaya Adachi, Takuma Yasuda, Hiroyuki Furuta, and Soji Shimizu, Near Infrared Absorbing Pyrrolopyrrole Aza-BODIPY-Based Donor–Acceptor Polymers with Reasonable Photoresponse, J. Mater. Chem. C 2020, 8, 8770-8776., 10.1039/D0TC01487G, 2020.06, [URL]. |
| 32. | 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]. |
| 33. | Tsutomu Ishi-i, Honoka Tanaka, In Seob Park, Takuma Yasuda, Shin-ichiro Kato, Mitsunori Ito, Hedetaka Hiyoshi, Taisuke Matsumoto, White-Light Emission from a Pyrimidine–Carbazole Conjugate with Tunable Phosphorescence–Fluorescence Dual Emission and Multicolor Emission Switching, Chem. Commun. 2020, 56, 4051-4054., 10.1039/D0CC00251H, 2020.03, [URL]. |
| 34. | Ru Feng, Narumi Sato, Takuma Yasuda, Hiroyuki Furuta, Soji Shimizu, Rational Design of Pyrrolopyrrole-Aza-BODIPY-Based Acceptor-Donor-Acceptor Triads for Organic Photovoltaics Application, Chem. Commun. 2020, 56, 2975-2978., 10.1039/D0CC00398K, 2020.02, [URL]. |
| 35. | In Seob Park, Takuma Yasuda, An Isonicotinonitrile-based Blue Thermally Activated Delayed Fluorescence Emitter, Chem. Lett. 2020, 49, 210-213., 10.1246/cl.190808, 2020.02, [URL]. |
| 36. | 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]. |
| 37. | 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]. |
| 38. | 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]. |
| 39. | 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]. |
| 40. | Hironobu Hayashi, Yuki Kato, Akinobu Matsumoto, So Shikita, Naoya Aizawa, Mitsuharu Suzuki, Naoki Aratani, Takuma Yasuda, Hiroko Yamada, Synthesis of Anthracene Derivatives with Azaacene‐Containing Iptycene Wings and the Utilization as a Dopant for Solution‐Processed Organic Light‐Emitting Diodes, Chem. Eur. J. 2019, 25, 15565-15571., 10.1002/chem.201903476, 2019.09, [URL]. |
| 41. | 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]. |
| 42. | 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]. |
| 43. | Tsutomu Ishi-i, Honoka Tanaka, Ryusuke Youfu, Naoya Aizawa, Takuma Yasuda, Shin-ichiro Kato, Taisuke Matsumoto, Mechanochromic Fluorescence Based on a Combination of Acceptor and Bulky Donor Moieties: Tuning Emission Color and Regulating Emission Change Direction , New J. Chem. 2019, 43, 4998-5010., 10.1039/C8NJ06050A, 2019.02, [URL]. |
| 44. | 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]. |
| 45. | 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]. |
| 46. | 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]. |
| 47. | 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]. |
| 48. | 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]. |
| 49. | 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. |
| 50. | 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. |
| 51. | 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. |
| 52. | 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. |
| 53. | 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. |
| 54. | 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. |
| 55. | Hideaki Komiyama, Tatsuya Oyama, Tatsuya Mori, Takuma Yasuda, π-Conjugated Naphthodithiophene Homopolymers Bearing Alkyl/Alkylthio-Thienyl Substituents: Facile Synthesis Using Hexamethylditin and Their Charge-Transport and Photovoltaic Properties, Polym. J. 2017, 49, 729-734., 10.1038/pj.2017.45, 2017.05. |
| 56. | 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. |
| 57. | 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. |
| 58. | 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. |
| 59. | 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. |
| 60. | 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. |
| 61. | 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. |
| 62. | 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. |
| 63. | Hideaki Komiyama, Chihaya Adachi, Takuma Yasuda, Tetrathienoanthracene-Based π-Extended Narrow-Band-Gap Molecules: Synthesis, Physicochemical, and Photovoltaic Properties , Chem. Lett. 2017, 46, 29-31., 10.1246/cl.160858, 2017.05. |
| 64. | 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. |
| 65. | 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. |
| 66. | 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. |
| 67. | Hideaki Komiyama, Chihaya Adachi, Takuma Yasuda, Star-Shaped and Linear π-Conjugated Oligomers Consisting of a Tetrathienoanthracene Core and Multiple Diketopyrrolopyrrole Arms for Organic Solar Cells, Beilstein J. Org. Chem. 2016, 12, 1459-1466., 10.3762/bjoc.12.142, 2016.05. |
| 68. | 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. |
| 69. | 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. |
| 70. | Mikiya Fujii, Woong Shin, Takuma Yasuda, Koichi Yamashita, Photon-Absorbing Charge-Bridging States in Organic Bulk Heterojunctions Consisting of Diketopyrrolopyrrole Derivatives and PCBM, Phys. Chem. Chem. Phys. 2016, 18, 9514-9523., 10.1039/C5CP06183K, 2016.03. |
| 71. | 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. |
| 72. | 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. |
| 73. | 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. |
| 74. | Myung Eun Jang, Takuma Yasuda, Jiyoung Lee, Sae Youn Lee, Chihaya Adachi, Organic Light-Emitting Diodes Based on Donor-Substituted Phthalimide and Maleimide Fluorophores, Chem. Lett. 2015, 44, 1248-1250., 10.1246/cl.150454, 2015.07. |
| 75. | Katsuyuki Shizu, Jiyoung Lee, Hiroyuki Tanaka, Hiroko Nomura, Takuma Yasuda, Hironori Kaji, Chihaya Adachi, Highly Efficient Electroluminescence from Purely Organic Donor–Acceptor Systems, Pure Appl. Chem. 2015, 87, 627-638., 2015.05. |
| 76. | 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. |
| 77. | Yan-qiong Zheng, William J. Potscavage Jr., Jing Zhang, Takuma Yasuda, Bin Wei, Chihaya Adachi, Tetraphenyldibenzoperiflanthene as Sensitizer for Enhancing the Performance in Dinaphthothienothiophene-Based Photovoltaics with and without Fullerene, Synth. Met. 2015, 205, 121–126., 2015.04. |
| 78. | 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. |
| 79. | Sae Youn Lee, Takuma Yasuda, In Seob Park, Chihaya Adachi, X-Shaped Benzoylbenzophenone Derivatives with Crossed Donors and Acceptors for Highly Efficient Thermally Activated Delayed Fluorescence, Dalton Trans. 2015, 44, 8356–8359., 2015.04. |
| 80. | 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. |
| 81. | 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. |
| 82. | Christian Mayr, Sae Youn Lee, Tobias D. Schmidt, Takuma Yasuda, CHIHAYA ADACHI, Wolfgang Brutting, Efficiency Enhancement of Organic Light-Emitting Diodes Incorporating a Highly Oriented Thermally Activated Delayed Fluorescence Emitter, Adv. Funct. Mater. 2014, 24, 5232–5239., 2014.04. |
| 83. | Hiroshi Ohkuma, Tetsuya Nakagawa, Katsuyuki Shizu, Takuma Yasuda, CHIHAYA ADACHI, Thermally Activated Delayed Fluorescence from a Spiro-Diazafluorene Derivative, Chem. Lett. 2014, 43, 1017–1019, 2014.04. |
| 84. | Hajime Nakanotani, Takahiro Higuchi, Taro Furukawa, Kensuke Masui, Kei Morimoto, Masaki Numata, Hiroyuki Tanaka, Yuta Sagara, Takuma Yasuda, CHIHAYA ADACHI, High Efficiency Light-Emitting Diodes with Fluorescent Emitters, Nature Commun. 2014, 5, 4016., 2014.04. |
| 85. | 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. |
| 86. | Takehiro Takahashi, Katsuyuki Shizu, Takuma Yasuda, Kazunori Togashi, CHIHAYA ADACHI, Donor–Acceptor Structured 1,4-Diazatriphenylene Derivatives Exhibiting Thermally Activated Delayed Fluorescence: Design and Synthesis, Photophysical Properties and OLED Characteristics, Sci. Technol. Adv. Mater. 2014, 15, 034202., 2014.04. |
| 87. | Takahiro Komori, Nakanotani Hajime, Takuma Yasuda, CHIHAYA ADACHI, Light-Emitting Organic Field-Effect Transistors Based on Highly Luminescent Single Crystals of Thiophene/Phenylene Co-Oligomers, J. Mater. Chem. C 2014, 2, 4918–4921., 2014.04. |
| 88. | Hiroyuki Mieno, Takuma Yasuda, Yu Seok Yang, CHIHAYA ADACHI, Self-Assembly, Physicochemical, and Field-Effect Transistor Properties of Solution-Crystallized Organic Semiconductors Based on -Extended Dithieno[3,2-b:2',3'-d]thiophenes, Chem. Lett. 2014, 43, 293-295., 2014.04. |
| 89. | Jun Yun Kim, Takuma Yasuda, Yu Seok Yang, Naoki Matsumoto, CHIHAYA ADACHI, Polymorphism in 9,9-Diarylfluorene-Based Organic Semiconductors: Influence on Optoelectronic Functions, Chem. Commun. 2014, 50, 1523-1526., 2014.04. |
| 90. | Takuro Nishimoto, Takuma Yasuda, Sae Youn Lee, Ryosuke Kondo, CHIHAYA ADACHI, A Six-Carbazole-Decorated Cyclophosphazene as a Host with High Triplet Energy to Realize Efficient Delayed-Fluorescence OLEDs, Mater. Horiz. 2014, 1, 264-269., 2014.04. |
| 91. | Keiro Nasu, Tetsuya Nakagawa, Hiroko Nomura, Chi-Jen Lin, Chien-Hong Cheng, Mei-Rurng Tseng, Takuma Yasuda, CHIHAYA ADACHI, A Highly Luminescent Spiro-Anthracenone-Based Organic Light-Emitting Diode through Thermally Activated Delayed Fluorescence, Chem. Commun. 2013, 49, 10385–10387., 2013.09. |
| 92. | 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. |
| 93. | 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. |
| 94. | Jiyoung Lee, Katsuyuki Shizu, Hiroyuki Tanaka, Hiroko Nomura, Takuma Yasuda, Takuma Yasuda, Oxadiazole- and Triazole-Based Highly-Efficient Thermally-Activated Delayed Fluorescence Emitters for Organic Light-Emitting Diodes, J. Mater. Chem. C 2013, 1, 4599-4604., 2013.06. |
| 95. | Kazunori Togashi, Yuta Sagara, Takuma Yasuda, CHIHAYA ADACHI, Molecular Design of High-Molecular-Orientation Electron-Transport Materials and Application to Organic Light-Emitting Diodes, Chem. Lett. 3013, 42, 651–653., 2013.05. |
| 96. | Kazunori Togashi, Yasuda Takuma, ADACHI CHIHAYA, Triphenylene-Based Host Materials for Low-Voltage and Highly Efficient Red Phosphorescent Organic Light-Emitting Diodes, Chem. Lett. 3013, 42, 383–385., 2013.04. |
| 97. | Atsushi Wada, Yasuda Takuma, Qisheng Zhang, Yu Seok Yang, Isao Takasu, Shitaro Enomoto, ADACHI CHIHAYA, A Host Material Consisting of A Phosphinic Amide Directly Linked Donor-Acceptor Structure for Efficient Blue Phosphorescent Organic Light-Emitting Diodes, J. Mater. Chem. C 2013, 1, 2404-2407., 2013.02. |
| 98. | Masaya Hirade, Yasuda Takuma, ADACHI CHIHAYA, Effects of Intramolecular Donor-Acceptor Interactions on Bimolecular Recombination in Small-Molecule Organic Photovoltaic Cells, J. Phys. Chem. C 2013, 117, 4986-4991., 2013.03. |
| 99. | Kazunori Togashi, Yasuda Takuma, ADACHI CHIHAYA, Triphenylene-Based Host Materials for Low-Voltage and Highly Efficient Red Phosphorescent Organic Light-Emitting Diodes, Chem. Lett. 2013, 42, 383-385., 2013.03. |
| 100. | 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. |
| 101. | 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. |
| 102. | Kazunori Togashi, Shintaro Nomura, Norimasa Yokoyama, Takuma Yasuda, and Chihaya Adachi, Low Driving Voltage Characteristics of Triphenylene Derivatives as Electron Transport Materials in Organic Light-Emitting Diodes, J. Mater. Chem. 2012, 22, 20689-20695., 10.1039/c2jm33669c, 22, 20689-20695, 2012.09. |
| 103. | Sae Youn Lee, Takuma Yasuda, Hiroko Nomura, and Chihaya Adachi,*, High-Performance Organic Light-Emitting Diodes Utilizing Efficient Thermally Activated Delayed Fluorescence from Triazine-Based Donor–Acceptor Hybrid Molecules, Appl. Phys. Lett. 2012, 101, 093306., 101, 093306, 2012.08. |
| 104. | 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. |
| 105. | Atsushi Wada, Qisheng Zhang, Takuma Yasuda, Isao Takasu, Naoya Enomoto, and Chihaya Adachi, Efficient Luminescence from a Copper(I) Complex doped in Organic Light-Emitting Diodes by Suppressing C-H Vibrational Quenching, Chem. Commun. 2012, 48, 5340-5342., 10.1039/c2cc31509b, 2012.04. |
| 106. | 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. |
| 107. | Masatsugu Taneda, Takuma Yasuda, and Chihaya Adachi, Horizontal Orientation of a Linear-Shaped Platinum(II) Complex in Organic Light-Emitting Diodes with a High Light Out-Coupling Efficiency, Appl. Phys. Exp. 2011, 4, 071602., 4, 071602, 2011.07. |
| 108. | 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。. |
| 109. | Yoshiko Shoji, Masafumi Yoshio, Takuma Yasuda, Masahiro Funahashi, and Takashi Kato, Alignment of Photoconductive Self-Assembled Fibers Composed of π-Conjugated Molecules under Electric Fields, J. Mater. Chem. 2010, 20, 173–179., 20, 173–179, 2010.04. |
| 110. | Yuki Hirai, S. Santhosh Babu, Vakayil K. Praveen, Takuma Yasuda, Ayyappanpillai Ajayaghosh, and Takashi Kato, Anisotropic Self-Assembly of Photoluminescent Oligo(p-phenylenevinylene) Derivatives in Liquid Crystals: An Effective Strategy for the Macroscopic Alignment of π-Gels, Adv. Mater. 2009, 21, 4029–4033. , 21, 4029–4033, 2009.10. |
| 111. | 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. |
| 112. | Etienne D. Baranoff, Julie Voignier, Takuma Yasuda, Valérie Heitz, Jean-Pierre Sauvage, and Takashi Kato, Macrocycle-Based Liquid Crystals: A Study of Topological Effects on Mesomorphism, Mol. Cryst. Liq. Cryst. 2009, 509, 165–172., 509, 165–172, 2009.09. |
| 113. | Masaomi Kimura, Tsukasa Hatano, Takuma Yasuda, Jun Morita, Yusuke Akama, Kiyoshi Minoura, Takeshi Shimomura, and Takashi Kato, Photoluminescent Liquid Crystals Based on Trithienylphosphine Oxides, Chem. Lett. 2009, 38, 800–801., 38, 800–801, 2009.07. |
| 114. | Kiyoshi Minoura, Yusuke Akama, Jun Morita, Takuma Yasuda, Takashi Kato, and Takeshi Shimomura, Supramolecular Structure of Columnar Liquid Crystalline π-Conjugated Oligothiophenes with Highly Polarized Photoluminescent Properties, J. Appl. Phys. 2009, 105, 113513-1-6., 105, 113513-1-6, 2009.06. |
| 115. | Yan-Li Zhao, Natalia Erina, Takuma Yasuda, Takashi Kato, and J. Fraser Stoddart, A Layered Liquid Crystalline Droplet, J. Mater. Chem. 2009, 19, 3469–3474., 19, 3469–3474, 2009.04. |
| 116. | 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. |
| 117. | Kana Tanabe, Takuma Yasuda, and Takashi Kato, Luminescent Ionic Liquid Crystals Based on Tripodal Pyridinium Salts, Chem. Lett. 2008, 37, 1208–1209., 37, 1208–1209, 2008.11. |
| 118. | Kyosuke Isoda, Takuma Yasuda, and Takashi Kato, Dipole-Driven Self-Assembly of Redox-Active Mesogenic Tetracyanoanthraquinodimethanes, J. Mater. Chem. 2008, 18, 4522–4528., 18, 4522–4528, 2008.08. |
| 119. | Takashi Morikita, Takuma Yasuda, and Takakazu Yamamoto, Luminescent π-Conjugated Poly(aryleneethynylene)s Consisting of Plural Aromatic Units: Preparation and Systematic Studies on Their Optical Properties, React. Funct. Polym. 2008, 68, 1483–1491., 68, 1483–1491, 2008.08. |
| 120. | Kana Tanabe, Takuma Yasuda, Masafumi Yoshio, and Takashi Kato, Viologen-Based Redox-Active Ionic Liquid Crystals Forming Columnar Phases, Org. Lett. 2007, 9, 4271–4274., 9, 4271–4274, 2007.09. |
| 121. | 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. |
| 122. | Etienne D. Baranoff, Julie Voignier, Takuma Yasuda, Valérie Heitz, Jean-Pierre Sauvage, and Takashi Kato, A Liquid-Crystalline [2]Catenane and Its Copper(I) Complex, Angew. Chem. Int. Ed. 2007, 46, 4680–4683., 46, 4680–4683, 2007.05. |
| 123. | 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. |
| 124. | Masaomi Kimura, Takuma Yasuda, Kenji Kishimoto, Gunther Gotz, Peter Bauerle, and Takashi Kato, Oligothiophene-Based Liquid Crystals Exhibiting Smectic A Phases in Wider Temperature Ranges, Chem. Lett. 2006, 35, 1150–1151., 35, 1150–1151, 2006.07. |
| 125. | Takuma Yasuda, Kenji Kishimoto, and Takashi Kato, Columnar Liquid Crystalline π-Conjugated Oligothiophenes, Chem. Commun. 2006, 3399–3401., 3399–3401, 2006.07. |
| 126. | Takakazu Yamamoto, Takuma Yasuda, Kazuaki Kobayashi, Isao Yamaguchi, Take-aki Koizumi, Daisuke Ishii, Masaru Nakagawa, Yoshihiro Mashiko, and Norihiro Shimizu, Utilization of Industrially Available 2,3-Dichloro-1,3-butadiene for Direct Synthesis of 2,3-Diaryl-1,3-butadienes, Bull. Chem. Soc. Jpn. 2006, 79, 498–500., 79, 498–500, 2006.03. |
| 127. | 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. |
| 128. | 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. |
| 129. | 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. |
| 130. | Takakazu Yamamoto, Bang-Lin Lee, Ismayil Nurulla, Takuma Yasuda, Isao Yamaguchi, Akihide Wada, Chiaki Hirose, Mitsuo Tasumi, Akira Sakamoto, and Eiji Kobayashi, Transfer of Photoenergy in π-Conjugated Polymers. Two Types of Photoluminescence that Involve Energy Transfer along a Polymer Chain, J. Phys. Chem. B 2005, 109, 10605–10610., 109, 10605–10610, 2005.05. |
| 131. | 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. |
| 132. | 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. |
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