Defect engineering in organic semiconductor based metal-dielectric photonic crystals

Khadga S. Thakuri, Thomas Cleary, David Allemeier, Taisei Kimura, Naoya Aizawa, Ken-ichi Nakayama, Akito Masuhara, Matthew S. White

Scientific Reports　Vol. 14　No. 1　2024/11/23　Research paper (scientific journal)

C3-Chiral truxenes showing high circularly polarized fluorescence and phosphorescence properties based on symmetry-forbidden transition

Takuya Omine, Fumitaka Ishiwari, Taehyun Won, Naoya Aizawa, Youhei Takeda, Yumi Yakiyama, Tadashi Mori, Takashi Hirose, Ken-ichi Nakayama, Akinori Saeki

ChemRxiv　2024/03/29

Inverted singlet–triplet emitters for organic light-emitting diodes

Taehyun Won, Ken-ichi Nakayama, Naoya Aizawa

Chemical Physics Reviews　2023/06/01　Research paper (scientific journal)

Possibilities and Limitations in Monomer Combinations for Ternary Two-Dimensional Covalent Organic Frameworks

Mitsuharu Suzuki, Masashi Miura, Enzo Ohkubo, Haru Karimata, Naoya Aizawa, Hiroko Yamada, Ken-ichi Nakayama

Journal of the American Chemical Society　Vol. 145　No. 5　p. 3008-3015　2023　Research paper (scientific journal)

Delayed fluorescence from inverted singlet and triplet excited states.

Naoya Aizawa, Yong-Jin Pu, Yu Harabuchi, Atsuko Nihonyanagi, Ryotaro Ibuka, Hiroyuki Inuzuka, Barun Dhara, Yuki Koyama, Ken-Ichi Nakayama, Satoshi Maeda, Fumito Araoka, Daigo Miyajima

Nature　Vol. 609　No. 7927　p. 502-506　2022/09　Research paper (scientific journal)

Dual-acceptor thermally activated delayed fluorescence emitters: Achieving high efficiency and long lifetime in orange-red OLEDs

Xiaoxiao Hu, Naoya Aizawa, Minjun Kim, Miaofei Huang, Zhiyi Li, Guanhao Liu, Honglei Gao, Teng Gao, Xiangyu Dong, Yong Zhang, Jianjun Liu, Pengfei Wang, Yuanping Yi, Yong-Jin Pu, Ying Wang

Chemical Engineering Journal　Vol. 434　p. 134728-134728　2022/04　Research paper (scientific journal)

Electron spin resonance resolves intermediate triplet states in delayed fluorescence

Bluebell H. Drummond, Naoya Aizawa, Yadong Zhang, William K. Myers, Yao Xiong, Matthew W. Cooper, Stephen Barlow, Qinying Gu, Leah R. Weiss, Alexander J. Gillett, Dan Credgington, Yong-Jin Pu, Seth R. Marder, Emrys W. Evans

Nature Communications　Vol. 12　No. 1　2021/12　Research paper (scientific journal)

Energy Transfer from Blue-Emitting CsPbBr3 Perovskite Nanocrystals to Green-Emitting CsPbBr3 Perovskite Nanocrystals

Kazushi Enomoto, Risa Oizumi, Naoya Aizawa, Takayuki Chiba, Yong-Jin Pu

The Journal of Physical Chemistry C　2021/09/09　Research paper (scientific journal)

Regulation of Multicolor Fluorescence Changes Found in Donor‐acceptor‐type Mechanochromic Fluorescent Dyes

Tsutomu Ishi‐i, Honoka Tanaka, Rihoko Kichise, Christopher Davin, Takaaki Matsuda, Naoya Aizawa, In Seob Park, Takuma Yasuda, Taisuke Matsumoto

Chemistry – An Asian Journal　Vol. 16　No. 15　p. 2136-2145　2021/06　Research paper (scientific journal)

Thermal equilibration between singlet and triplet excited states in organic fluorophore for submicrosecond delayed fluorescence

Naoya Aizawa, Akinobu Matsumoto, Takuma Yasuda

Science Advances　Vol. 7　No. 7　2021/02/12　Research paper (scientific journal)

Kinetic prediction of reverse intersystem crossing in organic donor–acceptor molecules

Naoya Aizawa, Yu Harabuchi, Satoshi Maeda, Yong-Jin Pu

Nature Communications　Vol. 11　No. 1　2020/12　Research paper (scientific journal)

Molecular beam epitaxy of high-quality CuI thin films on a low temperature grown buffer layer

S. Inagaki, M. Nakamura, N. Aizawa, L. C. Peng, X. Z. Yu, Y. Tokura, M. Kawasaki

Applied Physics Letters　2020/05/11　Research paper (scientific journal)

Selenium Substitution Enhances Reverse Intersystem Crossing in a Delayed Fluorescence Emitter

Bluebell H. Drummond, Gabrielle C. Hoover, Alexander J. Gillett, Naoya Aizawa, William K. Myers, Bryony T. McAllister, Saul T. E. Jones, Yong-Jin Pu, Dan Credgington, Dwight S. Seferos

The Journal of Physical Chemistry C　Vol. 124　No. 11　p. 6364-6370　2020/03/19　Research paper (scientific journal)

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

Hironobu Hayashi, Yuki Kato, Akinobu Matsumoto, So Shikita, Naoya Aizawa, Mitsuharu Suzuki, Naoki Aratani, Takuma Yasuda, Hiroko Yamada

Chemistry – A European Journal　Vol. 25　No. 68　p. 15565-15571　2019/12/05　Research paper (scientific journal)

Room‐Temperature Phosphorescence from a Series of 3‐Pyridylcarbazole Derivatives

Hisahiro Sasabe, Yuki Kato, Yuichiro Watanabe, Tatsuya Ohsawa, Naoya Aizawa, Wataru Fujiwara, Yong‐Jin Pu, Hiroshi Katagiri, Junji Kido

Chemistry – A European Journal　Vol. 25　No. 71　p. 16294-16300　2019/11　Research paper (scientific journal)

Mechanochromic fluorescence based on a combination of acceptor and bulky donor moieties: tuning emission color and regulating emission change direction

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

New Journal of Chemistry　2019　Research paper (scientific journal)

Exciplex emissions derived from exceptionally long-distance donor and acceptor molecules

Yong-Jin Pu, Yuki Koyama, Daisuke Otsuki, Minjun Kim, Hiroya Chubachi, Yuki Seino, Kazushi Enomoto, Naoya Aizawa

Chemical Science　2019　Research paper (scientific journal)

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

Seiichi Furukawa, Hideaki Komiyama, Naoya Aizawa, Takuma Yasuda

ACS Applied Materials & Interfaces　Vol. 10　No. 49　p. 42756-42765　2018/11　Research paper (scientific journal)

Modulating Photo- and Electroluminescence in a Stimuli-Responsive π-Conjugated Donor-Acceptor Molecular System

Kohei Isayama, Naoya Aizawa, Jun Yun Kim, Takuma Yasuda

Angewandte Chemie　Vol. 130　No. 37　p. 12158-12162　2018/09/10　Research paper (scientific journal)

Modulating Photo- and Electroluminescence in a Stimuli-Responsive π-Conjugated Donor-Acceptor Molecular System

Kohei Isayama, Naoya Aizawa, Jun Yun Kim, Takuma Yasuda

Angewandte Chemie International Edition　Vol. 57　No. 37　p. 11982-11986　2018/09/10　Research paper (scientific journal)

High-Performance Dibenzoheteraborin-Based Thermally Activated Delayed Fluorescence Emitters: Molecular Architectonics for Concurrently Achieving Narrowband Emission and Efficient Triplet-Singlet Spin Conversion

In Seob Park, Kyohei Matsuo, Naoya Aizawa, Takuma Yasuda

Advanced Functional Materials　Vol. 28　No. 34　p. 1802031-1802031　2018/08/25　Research paper (scientific journal)

Molecular engineering of phosphacycle-based thermally activated delayed fluorescence materials for deep-blue OLEDs

Jiyoung Lee, Naoya Aizawa, Takuma Yasuda

Journal of Materials Chemistry C　2018　Research paper (scientific journal)

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

Jiyoung Lee, Naoya Aizawa, Takuma Yasuda

Chemistry of Materials　Vol. 29　No. 18　p. 8012-8020　2017/09/11　Research paper (scientific journal)

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

Naoya Aizawa, So Shikita, Takuma Yasuda

Chemistry of Materials　Vol. 29　No. 16　p. 7014-7022　2017/08/07　Research paper (scientific journal)

Solution-based electrical doping of semiconducting polymer films over a limited depth

Vladimir A. Kolesov, Canek Fuentes-Hernandez, Wen-Fang Chou, Naoya Aizawa, Felipe A. Larrain, Ming Wang, Alberto Perrotta, Sangmoo Choi, Samuel Graham, Guillermo C. Bazan, Thuc-Quyen Nguyen, Seth R. Marder, Bernard Kippelen

Nature Materials　Vol. 16　No. 4　p. 474-480　2017/04/05　Research paper (scientific journal)

Tunable Full-Color Electroluminescence from All-Organic Optical Upconversion Devices by Near-Infrared Sensing

Hiroki Tachibana, Naoya Aizawa, Yu Hidaka, Takuma Yasuda

ACS Photonics　Vol. 4　No. 2　p. 223-227　2017/02/15　Research paper (scientific journal)

Versatile Molecular Functionalization for Inhibiting Concentration Quenching of Thermally Activated Delayed Fluorescence

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

Advanced Materials　Vol. 29　No. 4　p. 1604856-1604856　2016/11　Research paper (scientific journal)

Aggregation-induced delayed fluorescence from phenothiazine-containing donor–acceptor molecules for high-efficiency non-doped organic light-emitting diodes

Naoya Aizawa, Chao-Jen Tsou, In Seob Park, Takuma Yasuda

Polymer Journal　Vol. 49　No. 1　p. 197-202　2016/09　Research paper (scientific journal)

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

AIZAWA, NAOYA, PARK, IN SEOB, YASUDA, TAKUMA

AAPPS Bulletin　Vol. 26　No. 2　2016　Research paper (scientific journal)

Simultaneous cross-linking and p-doping of a polymeric semiconductor film by immersion into a phosphomolybdic acid solution for use in organic solar cells

Naoya Aizawa, Canek Fuentes-Hernandez, Vladimir A. Kolesov, Talha M. Khan, Junji Kido, Bernard Kippelen

Chemical Communications　Vol. 52　No. 19　p. 3825-3827　2016　Research paper (scientific journal)

Instant Low-Temperature Cross-Linking of Poly(N-vinylcarbazole) for Solution-Processed Multilayer Blue Phosphorescent Organic Light-Emitting Devices

Naoya Aizawa, Yong-Jin Pu, Takayuki Chiba, So Kawata, Hisahiro Sasabe, Junji Kido

Advanced Materials　Vol. 26　No. 45　p. 7543-7546　2014/09　Research paper (scientific journal)

Solution-processed multilayer small-molecule light-emitting devices with high-efficiency white-light emission

Naoya Aizawa, Yong-Jin Pu, Michitake Watanabe, Takayuki Chiba, Kazushige Ideta, Naoki Toyota, Masahiro Igarashi, Yoshiyuki Suzuri, Hisahiro Sasabe, Junji Kido

Nature Communications　Vol. 5　p. 5756-5756　2014　Research paper (scientific journal)

Fabrication of Organic Light-Emitting Devices Comprising Stacked Light-Emitting Units by Solution-Based Processes

Yong-Jin Pu, Takayuki Chiba, Kazushige Ideta, Shogo Takahashi, Naoya Aizawa, Tatsuya Hikichi, Junji Kido

Advanced Materials　Vol. 27　No. 8　p. 1327-1332　2014　Research paper (scientific journal)

2,6-Bis(arylsulfonyl)anilines as Fluorescent Scaffolds through Intramolecular Hydrogen Bonds: Solid-State Fluorescence Materials and Turn-On-Type Probes Based on Aggregation-Induced Emission

Teruo Beppu, So Kawata, Naoya Aizawa, Yong-Jin Pu, Yasuyuki Abe, Yoshihiro Ohba, Hiroshi Katagiri

ChemPlusChem　Vol. 79　No. 4　p. 536-545　2014/01　Research paper (scientific journal)

Thermally cross-linkable host materials for enabling solution-processed multilayer stacks in organic light-emitting devices

Naoya Aizawa, Yong-Jin Pu, Hisahiro Sasabe, Junji Kido

Organic Electronics　Vol. 14　No. 6　p. 1614-1620　2013/06　Research paper (scientific journal)

Multilayered Organic Light-Emitting Devices by Solution-Process

Yong-Jin Pu, Takayuki Chiba, Naoya Aizawa, Hisahiro Sasabe, Junji Kido

Journal of Photopolymer Science and Technology　Vol. 26　No. 3　p. 403-410　2013　Research paper (scientific journal)

Solution-processable carbazole-based host materials for phosphorescent organic light-emitting devices

Naoya Aizawa, Yong-Jin Pu, Hisahiro Sasabe, Junji Kido

Organic Electronics　Vol. 13　No. 11　p. 2235-2242　2012/11　Research paper (scientific journal)

fac-Tris(2-phenylpyridine)iridium (III)s, covalently surrounded by six bulky host dendrons, for a highly efficient solution-processed organic light emitting device

Yong-Jin Pu, Noriaki Iguchi, Naoya Aizawa, Hisahiro Sasabe, Ken-ichi Nakayama, Junji Kido

Organic Electronics　Vol. 12　No. 12　p. 2103-2110　2011　Research paper (scientific journal)