Efficient organic light-emitting diodes through up-conversion from triplet to singlet excited states of exciplexes Reviewed International journal

Kenichi Goushi, Chihaya Adachi

APPLIED PHYSICS LETTERS   101 ( 2 )   2012.7

Organic light-emitting diodes employing efficient reverse intersystem crossing for triplet-to-singlet state conversion Reviewed International journal

Kenichi Goushi, Kou Yoshida, Keigo Sato, Chihaya Adachi

NATURE PHOTONICS   6 ( 4 )   253 - 258   2012.4

Excitation Intensity Dependence of Power-Law Blinking Statistics in Nanocrystal Quantum Dots Reviewed International journal

Kenichi Goushi, Toshiki Yamada, Akira Otomo

JOURNAL OF PHYSICAL CHEMISTRY C   113 ( 47 )   20161 - 20168   2009.11

100% phosphorescence quantum efficiency of Ir(III) complexes in organic semiconductor films Reviewed International journal

Y. KAWAMURA, K. GOUSHI, J. BROOKS, J. J. BROWN, H. SASABE, C. ADACHI

APPLIED PHYSICS LETTERS   86 ( 7 )   2005.2

Hexacarbazolylbenzene: An Excellent host Molecule Causing Strong Guest Molecular Orientation and the high-Performance OLEDs. International journal

Bhagya Madushani, Masashi Mamada, Kenichi Goushi, Hiroshi Katagiri, Hajime Nakanotani, Takuji Hatakeyama, Chihaya Adachi

Advanced materials (Deerfield Beach, Fla.)   e2402275   2024.6   （ ISSN:09359648 ）

Effect of Multiple Acceptor Structures in Electron Transport Materials on Operational Lifetime of Blue Thermally Activated Delayed Fluorescence Organic Light‐Emitting Diodes

Shione Kiriyama, Masashi Mamada, Kenichi Goushi, Bhagya Madushani, Takuji Hatakeyama, Chihaya Adachi

Advanced Functional Materials   2024.4   （ ISSN:1616301X ）

Indication of Intramolecular Triplet–Triplet Annihilation Upconversion in Organic Light‐Emitting Diodes

12 ( 3 )   2023.10

Multiple donor–acceptor design for highly luminescent and stable thermally activated delayed fluorescence emitters

13 ( 1 )   2023.5

Highly efficient light harvesting of a Eu(iii) complex in a host–guest film by triplet sensitization Reviewed

2023.5

Organic Binary and Ternary Cocrystal Engineering Based on Halogen Bonding Aimed at Room‐Temperature Phosphorescence

2023.3

Artificial p–n‐like Junction Based on Pure 2D Organic–Inorganic Halide Perovskite Structure Having Naphthalene Diimide Acceptor Moieties

Zhao Feng, Xuelong Liu, Kentaro Imaoka, Tomohiro Ishii, Ganbaatar Tumen‐Ulzii, Xun Tang, George F. Harrington, Benoît Heinrich, Jean‐Charles Ribierre, Lise‐Marie Chamoreau, Lydia Sosa Vargas, David Kreher, Kenichi Goushi, Toshinori Matsushima, Guijiang Zhou, Fabrice Mathevet, Chihaya Adachi

11 ( 10 )   2023.3

Tailor-Made Multi-Resonance Terminal Emitters toward Narrowband, High-Efficiency, and Stable Hyperfluorescence Organic Light-Emitting Diodes

Yi-Ting Lee, Chin-Yiu Chan, Masaki Tanaka, Masashi Mamada, Kenichi Goushi, Xun Tang, Youichi Tsuchiya, Hajime Nakanotani, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   10 ( 17 )   2022.9

Highly Efficient Deep-Blue Organic Light-Emitting Diodes Based on Rational Molecular Design and Device Engineering

Masashi Mamada, Hiroshi Katagiri, Chin-Yiu Chan, Yi-Ting Lee, Kenichi Goushi, Hajime Nakanotani, Takuji Hatakeyama, Chihaya Adachi

ADVANCED FUNCTIONAL MATERIALS   32 ( 32 )   2022.8

Carbazole-2-carbonitrile as an acceptor in deep-blue thermally activated delayed fluorescence emitters for narrowing charge-transfer emissions

Chin-Yiu Chan, Yi-Ting Lee, Masashi Mamada, Kenichi Goushi, Youichi Tsuchiya, Hajime Nakanotani, Chihaya Adachi

CHEMICAL SCIENCE   13 ( 26 )   7821 - 7828   2022.7

Numerical Study of Triplet Dynamics in Organic Semiconductors Aimed for the Active Utilization of Triplets by TADF under Continuous-Wave Lasing

Ayano Abe, Kenichi Goushi, Atula S.D. Sandanayaka, Ryutaro Komatsu, Takashi Fujihara, Masashi Mamada, Chihaya Adachi

Journal of Physical Chemistry Letters   13 ( 5 )   1323 - 1329   2022.2

Recycling of Triplets into Singlets for High-Performance Organic Lasers

Chathuranganie A. M. Senevirathne, Seiya Yoshida, Morgan Auffray, Masayuki Yahiro, Buddhika S. B. Karunathilaka, Fatima Bencheikh, Kenichi Goushi, Atula S. D. Sandanayaka, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   10 ( 1 )   2021.10

Hot exciplexes in U-shaped TADF molecules with emission from locally excited states

A. Lennart Schleper, Kenichi Goushi, Christoph Bannwarth, Bastian Haehnle, Philipp J. Welscher, Chihaya Adachi, Alexander J. C. Kuehne

NATURE COMMUNICATIONS   12 ( 1 )   2021.10

Markedly Improved Performance of Optically Pumped Organic Lasers with Two-Dimensional Distributed-Feedback Gratings

Chathuranganie A. M. Senevirathne, Atula S. D. Sandanayaka, Buddhika S. B. Karunathilaka, Takashi Fujihara, Fatima Bencheikh, Chuanjiang Qin, Kenichi Goushi, Toshinori Matsushima, Chihaya Adachi

ACS PHOTONICS   8 ( 5 )   1324 - 1334   2021.5

Synthesis and Characterization of 5,5 '-Bitetracene

Masashi Mamada, Kenichi Goushi, Ryota Nakamura, Hironori Kaji, Chihaya Adachi

CHEMISTRY LETTERS   50 ( 4 )   800 - 803   2021.4

Realizing Near-Infrared Laser Dyes through a Shift in Excited-State Absorption

Reiko Aoki, Ryutaro Komatsu, Kenichi Goushi, Masashi Mamada, Soo Young Ko, Jeong Weon Wu, Virginie Placide, Anthony D'Aleo, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   9 ( 6 )   2021.3

Suppression of external quantum efficiency rolloff in organic light emitting diodes by scavenging triplet excitons

Buddhika S. B. Karunathilaka, Umamahesh Balijapalli, Chathuranganie A. M. Senevirathne, Seiya Yoshida, Yu Esaki, Kenichi Goushi, Toshinori Matsushima, Atula S. D. Sandanayaka, Chihaya Adachi

NATURE COMMUNICATIONS   11 ( 1 )   2020.10

An Organic Laser Dye having a Small Singlet-Triplet Energy Gap Makes the Selection of a Host Material Easier

Buddhika S. B. Karunathilaka, Umamahesh Balijapalli, Chathuranganie A. M. Senevirathne, Yu Esaki, Kenichi Goushi, Toshinori Matsushima, Atula S. D. Sandanayaka, Chihaya Adachi

ADVANCED FUNCTIONAL MATERIALS   30 ( 30 )   2020.7

Intersystem Crossing Rate in Thermally Activated Delayed Fluorescence Emitters

Takashi Kobayashi, Daisuke Kawate, Akitsugu Niwa, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE   217 ( 3 )   2020.2

Observation of Nonradiative Deactivation Behavior from Singlet and Triplet States of Thermally Activated Delayed Fluorescence Emitters in Solution Reviewed

Naoto Notsuka, Hajime Nakanotani, Hiroki Noda, Kenichi Goushi, Chihaya Adachi

JOURNAL OF PHYSICAL CHEMISTRY LETTERS   11 ( 2 )   562 - 566   2020.1

Intersystem Crossing Rate in Thermally Activated Delayed Fluorescence Emitters Reviewed

Takashi Kobayashi, Daisuke Kawate, Akitsugu Niwa, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

Physica Status Solidi (A) Applications and Materials Science   2019.10

スカイブルー発光を示す2CzPNの時間分解発光スペクトル

萱苗 淳美, 石井 智也, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

応用物理学会学術講演会講演予稿集   2019.2   2621 - 2621   2019.9

Distributed Feedback Lasers and Light-Emitting Diodes Using 1-Naphthylmethylamnonium Low-Dimensional Perovskite Reviewed

Matthew R. Leyden, Shinobu Terakawa, Toshinori Matsushima, Shibin Ruan, Kenichi Goushi, Morgan Auffray, Atula S. D. Sandanayaka, Chuanjiang Qin, Fatima Bencheikh, Chihaya Adachi

ACS PHOTONICS   6 ( 2 )   460 - 466   2019.2

Enhanced Electroluminescence from Organic Light-Emitting Diodes with an Organic-Inorganic Perovskite Host Layer Reviewed

Toshinori Matsushima, Chuanjiang Qin, Kenichi Goushi, Fatima Bencheikh, Takeshi Komino, Matthew Leyden, Atula S. D. Sandanayaka, Chihaya Adachi

ADVANCED MATERIALS   30 ( 38 )   2018.9

Triplet-triplet annihilation in a thermally activated delayed fluorescence emitter lightly doped in a host Reviewed

Akitsugu Niwa, Shota Haseyama, Takashi Kobayashi, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

APPLIED PHYSICS LETTERS   113 ( 8 )   2018.8

Emission properties of thermally activated delayed fluorescence emitters: analysis based on a four-level model considering a higher triplet excited state Reviewed

Takashi Kobayashi, Akitsugu Niwa, Shota Haseyama, Kensho Takaki, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

JOURNAL OF PHOTONICS FOR ENERGY   8 ( 3 )   2018.7

Observation of spontaneous orientation polarization in evaporated films of organic light-emitting diode materials Reviewed

Kohei Osada, Kenichi Goushi, Hironori Kaji, Chihaya Adachi, Hisao Ishii, Yutaka Noguchi

ORGANIC ELECTRONICS   58   313 - 317   2018.7

Recent Advances in Molecular Electronics and Bioelectronics FOREWORD

Kenichi Goushi, Takeshi Fukuda, Atsushi Kubono, Atsushi Miura, Kei Noda, Hiroaki Usui, Ichiro Yamashita, Yuji Yoshida

JAPANESE JOURNAL OF APPLIED PHYSICS   57 ( 3 )   2018.3

Confinement of Long-Lived Triplet Excitons in Organic Semiconducting Host-Guest Systems Reviewed

Naoto Notsuka, Ryota Kabe, Kenichi Goushi, Chihaya Adachi

ADVANCED FUNCTIONAL MATERIALS   27 ( 40 )   2017.10

Flexible and Printed Electronics Reviewed

Masatoshi Kitamura, Kenichi Goushi, Takao Ishida, Tatsuo Mori, Hiroyoshi Naito, Masaya Nogi, Kazuhito Tsukagoshi, Yukiharu Uraoka, Hirobumi Ushijima, Tsukasa Yoshida

JAPANESE JOURNAL OF APPLIED PHYSICS   56 ( 5 )   2017.5

Control of the Singlet-Triplet Energy Gap in a Thermally Activated Delayed Fluorescence Emitter by Using a Polar Host Matrix Reviewed International journal

Shota Haseyama, Akitsugu Niwa, Takashi Kobayashi, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

NANOSCALE RESEARCH LETTERS   12 ( 1 )   2017.4

Contributions of a Higher Triplet Excited State to the Emission Properties of a Thermally Activated Delayed-Fluorescence Emitter Reviewed International journal

Takashi Kobayashi, Akitsugu Niwa, Kensho Takaki, Shota Haseyama, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

PHYSICAL REVIEW APPLIED   7 ( 3 )   2017.3

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   4 ( 6 )   834 - 839   2016.6

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   4 ( 6 )   834 - 839   2016.6

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   4 ( 6 )   834 - 839   2016.6

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   4 ( 6 )   834 - 839   2016.6

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   4 ( 6 )   834 - 839   2016.6

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, Chihaya Adachi

ADVANCED OPTICAL MATERIALS   4 ( 6 )   834 - 839   2016.6

Quasi-Continuous-Wave Organic Thin-Film Distributed Feedback Laser Reviewed International journal

SANDANAYAKA SANGARANGE, Kou Yoshida, Munetomo Inoue, QIN CHUANJIANG, Kenichi Goushi, JEAN CHARLES MAURICE RIBIERRE, Toshinori Matsushima, Chihaya Adachi

Advanced optical materials   4 ( 6 )   834 - 839   2016.6

Organic light-emitting diodes (OLEDs) Materials, photophysics, and device physics Reviewed International journal

Chihaya Adachi, Saeyoun Lee, Tetsuya Nakagawa, Katsuyuki Shizu, Kenichi Goshi, Takuma Yasuda, William J. Potscavage

Organic Electronics Materials and Devices   43 - 73   2015.9

Comparison of transient state and steady state exciton-exciton annihilation rates based on Forster-type energy transfer Reviewed International journal

Toshiya Yonehara, Kenichi Goushi, Tomoaki Sawabe, Isao Takasu, Chihaya Adachi

JAPANESE JOURNAL OF APPLIED PHYSICS   54 ( 7 )   071601   2015.7

Highly Efficient Thermally Activated Delayed Fluorescence Emitters with a Small Singlet-Triplet Energy Gap and Large Oscillator Strength Reviewed International journal

Yuta Sagara, Katsuyuki Shizu, Hiroyuki Tanaka, Hiroshi Miyazaki, Kenichi Goushi, Hironori Kaji, Chihaya Adachi

CHEMISTRY LETTERS   44 ( 3 )   360 - 362   2015.3

Charge carrier dynamics and degradation phenomena in organic light-emitting diodes doped by a thermally activated delayed fluorescence emitter Reviewed International journal

Yutaka Noguchi, Hyung-Jun Kim, Ryuta Ishino, Kenichi Goushi, Chihaya Adachi, Yasuo Nakayama, Hisao Ishii

ORGANIC ELECTRONICS   17   184 - 191   2015.2

Influence of host matrix on thermally-activated delayed fluorescence: Effects on emission lifetime, photoluminescence quantum yield, and device performance Reviewed International journal

Gabor Mehes, Kenichi Goushi, William J. Potscavage, Chihaya Adachi

ORGANIC ELECTRONICS   15 ( 9 )   2027 - 2037   2014.9

Temperature dependence of photoluminescence properties in a thermally activated delayed fluorescence emitter Reviewed International journal

Akitsugu Niwa, Takashi Kobayashi, Takashi Nagase, Kenichi Goushi, Chihaya Adachi, Hiroyoshi Naito

APPLIED PHYSICS LETTERS   104 ( 21 )   2014.5

Reduced amplified spontaneous emission threshold in organic semiconductor laser structure with relaxed roll-off characteristics under high current densities Reviewed

Munetomo Inoue, Kenichi Goushi, Kuniaki Endo, Hiroko Nomura, Chihaya Adachi

JOURNAL OF LUMINESCENCE   143   754 - 758   2013.11

Reduced amplified spontaneous emission threshold in organic semiconductor laser structure with relaxed roll-off characteristics under high current densities Reviewed International journal

Munetomo Inoue, Kenichi Goushi, Kuniaki Endo, Hiroko Nomura, CHIHAYA ADACHI

Journal of Luminescence   2013.4

Triplet Exciton Confinement in Green Organic Light-Emitting Diodes Containing Luminescent Charge-Transfer Cu(I) Complexes Reviewed International journal

Qisheng Zhang, Takeshi Komino, Shuping Huang, Shigeyuki Matsunami, Kenichi Goushi, Chihaya Adachi

ADVANCED FUNCTIONAL MATERIALS   22 ( 11 )   2327 - 2336   2012.6

Two-dimensional orientation control of organic semiconducting amorphous films by mechanical brushing Reviewed International journal

Toshiharu Arai, Kenichi Goushi, Hiroko Nomura, Tomohiko Edura, Chihaya Adachi

Appl. Phys. Lett.   99   2011.8

Two-dimensional orientation control of organic semiconducting amorphous films by mechanical brushing Reviewed

Toshiharu Arai, Kenichi Goushi, Hiroko Nomura, Tomohiko Edura, Chihaya Adachi

APPLIED PHYSICS LETTERS   99 ( 5 )   2011.8

Improvement of Electroluminescence Performance of Organic Light-Emitting Diodes with a Liquid-Emitting Layer by Introduction of Electrolyte and a Hole-Blocking Layer Reviewed International journal

Shuzo Hirata, Korefumi Kubota, Heo Hyo Jung, Osamu Hirata, Kenichi Goushi, Masayuki Yahiro, Chihaya Adachi

ADVANCED MATERIALS   23 ( 7 )   889 - +   2011.2

Time-correlated single photon counting system and light-collection system for studying fluorescence emitters under high-vacuum conditions: Use of immersion objective and ionic liquid Reviewed International journal

Toshiki Yamada, Kenichi Goushi, Akira Otomo

THIN SOLID FILMS   518 ( 2 )   432 - 436   2009.11

Organic Field Effect Transistor Using Pentacene Single Crystals Grown by a Liquid-Phase Crystallization Process Reviewed International journal

Yasuo Kimura, Michio Niwano, Naohiko Ikuma, Kenichi Goushi, Kingo Itaya

LANGMUIR   25 ( 9 )   4861 - 4863   2009.5

Time-correlated single photon counting and optical measurement systems for studying single fluorescent emitters under high vacuum conditions Reviewed International journal

Toshiki Yamada, Kenichi Goushi, Xingsheng Xu, Akira Otomo

THIN SOLID FILMS   517 ( 4 )   1507 - 1511   2008.12

Charge-carrier injection characteristics at organic/organic heterojunction interfaces in organic light-emitting diodes Reviewed International journal

Toshinori Matsushima, Kenichi Goushi, Chihaya Adachi

CHEMICAL PHYSICS LETTERS   435 ( 4-6 )   327 - 330   2007.2

Phosphorescence quantum efficiency and intermolecular interaction of Iridium(III) complexes in co-deposited films with organic semiconducting hosts Reviewed

Y Kawamura, K Goushi, J Brooks, JJ Brown, H Sasabe, C Adachi

Organic and Nanocomposite Optical Materials   846   73 - 78   2005.8

100% fluorescence efficiency of 4,4’-bis[(N-carbazole)styryl]biphenyl in a solid film and the very low amplified spontaneous emission threshold Reviewed International journal

86 ( 7 )   2005.2

Unusual Phosphorescence Characteristics of Ir(ppy)3 in a Solid Matrix at Low Temperatures Reviewed International journal

Goushi Kenichi, Kawamura Yuichiro, Sasabe Hiroyuki, Adachi Chihaya

Japanese journal of applied physics. Pt. 2, Letters   43 ( 7 )   L937 - L939   2004.7

Triplet exciton confinement and unconfinement by adjacent hole-transport layers Reviewed International journal

K. GOUSHI, R. KWONG, J. J. BROWN, H. SASABE, C. ADACHI

JOURNAL OF APPLIED PHYSICS   95 ( 12 )   2004.6

2つのリン光性ドーパントを含有する白色リン光デバイスの発光機構

佐藤 喜郎, 合志 憲一, 雀部 博之, BROWN Julie J., 斉藤 正美, 安達 千波矢

電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society   124 ( 5 )   414 - 420   2004.5

Ultraviolet amplified spontaneous emission from thin films of 4,4 '-bis(9-carbazolyl)-2,2 '-biphenyl and the derivatives Reviewed International journal

Y. KAWAMURA, H. YAMAMOTO, K. GOUSHI, H. SASABE C. ADACHI

APPLIED PHYSICS LETTERS   84 ( 15 )   2004.4

High-efficiency organic electrophosphorescent diodes using 1, 3, 5-triazine electron transport materials Reviewed International journal

H. INOMATA, K. GOUSHI, T. MASUKO, T. KONNO, T. IMAI, H. SASABE, J. J. BROWN, C. ADACHI

CHEMISTRY OF MATERIALS   16 ( 7 )   2004.4

酸素濃度を変えた4CzIPN 溶液試料における発光減衰曲線

川手 大輔, 萱苗 淳美, 石井 智也, 丹羽 顕嗣, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第66回応用物理学会春季学術講演会  2019.3 

臭素置換された熱活性化遅延蛍光材料の光物性評価

石井 智也, 川手 大輔, 小林 隆史, 永瀬 隆, 合志 憲一, 中野谷 一, 安達 千波矢, 内藤 裕義

第66回応用物理学会春季学術講演会  2019.3 

熱活性化遅延蛍光材料における三重項-三重項対消滅の定量的解析

石井 智也, 丹羽 顕嗣, 川手 大輔, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第79回応用物理学会秋季学術講演会  2018.9 

CT性を有するアントラセン誘導体におけるTriplet-triplet upconversion特性

家宇治 亮太, 合志 憲一, 安達 千波矢

第79回応用物理学会秋季学術講演会  2018.9 

スカイブルー発光を示す2CzPNの緩和速度の溶媒極性依存性

川手 大輔, 石井 智也, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第79回応用物理学会秋季学術講演会  2018.9 

Continuous-wave lasing from organic semiconductor films

2017.3 

時間相関単一光子計数法を用いたTADF 材料の蛍光寿命測定

丹羽 顕嗣, 長谷山 翔太, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第64回応用物理学会春季学術講演会  2017.3 

Tn準位を考慮した4準位モデルによる熱活性化遅延蛍光材料の評価

川手 大輔, 長谷山 翔太, 丹羽 顕嗣, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第64回応用物理学会春季学術講演会  2017.3 

極性分子を添加したホストマトリックス中での TADF 材料の発光特性

長谷山 翔太, 丹羽 顕嗣, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第77回応用物理学会秋季学術講演会  2016.9 

熱活性化遅延蛍光薄膜における三重項対消滅について - 発光スペクトルの励起光強度依存性

丹羽 顕嗣, 長谷山 翔太, 小林 隆史, 永瀬 隆, 合志 憲一, 安達 千波矢, 内藤 裕義

第77回応用物理学会秋季学術講演会  2016.9 

遅延蛍光型エキサイプレックスを利用した有機EL素子の高効率化

合志 憲一, 安達 千波矢

第64回高分子討論会  2015.9 

Delayed fluorescence by reverse intersystem crossing from intermolecular excited states International conference

Kenichi Goushi, Yuta Hirayama, Chihaya Adachi

SpinOS 2014  2014.11 

Development of Donor-Acceptor-Donor Type TADF Molecules for Highly Efficient OLEDs International conference

Kenichi Goushi, Yuta Sagara, CHIHAYA ADACHI

SPIE optics + photonics 2014  2014.8 

九州大学 最先端有機光エレクトロニクス研究センター(OPERA)の取り組みと今後の展開-有機ELデバイス物性の最先端

合志 憲一

日経エレクトロニクスセミナー  2014.7 

Organic light-emitting diodes with energy transfer mechanism from intermolecular excited state into fluorescent dye International conference

Yuta Hirayama, Kenichi Goushi, CHIHAYA ADACHI

TADF International Workshop  2014.3 

Thermal activated spin conversion in excited states and application to　organic light-emitting diodes Invited International conference

2014.2 

有機半導体におけるスピン自由度と電荷ダイナミクス Invited

合志 憲一

日本物理学会 2013年秋季大会  2013.9 

Efficient up-conversion from triplet to singlet excited states of exciplex in organic light-emitting diodes Invited International conference

Kenichi Goushi

Asian Conference on Organic Electronics 2012  2012.12 

Controlling Carrier Recombination Line Width in Organic Single Crystal Light Emitting Transistor Having Split-Gate Electrodes International conference

Hayato Kakizoe, Kenichi Goushi, Tomohiko Edura, and Chihaya Adachi

Material Research Socieety Fall Meeting  2011.12 

エキサイプレックスの逆項間交差による高効率有機EL素子 Invited

合志 憲一

第73回応用物理学会学術講演会  2012.9 

エキサイプレックスからの遅延蛍光および有機EL素子への応用

合志 憲一, 安達 千波矢

有機ＥＬ討論会  2012.6 

Delayed Fluorescence by Reverse Intersystem Crossing and Application to Organic Light-Emitting Diodes Invited International conference

Kenichi Goushi and Chihaya Adachi

The Conference on Lasers and Electro-Optics  2012.5 

Mechanism of two-dimensional orientation control by mechanical brushing in organic amorphous films International conference

Kenichi Goushi, Toshiharu Arai, Hiroko Nomura, Tomohiko Edura, and Chihaya Adachi

Material Research Socieety Spring Meeting  2012.4 

Electric field-induced polaron absorption in organic semiconductors and elucidation of exciton annihilation process under electrically pumping International conference

Miki Kamoto, Kenichi Goushi, Hiroko Nomura, Takuma Yasuda, and Chihaya Adachi

Material Research Socieety Spring Meeting  2012.4 

Suppression of propagation loss in organic semiconductor laser devices having low refractive index layers International conference

Munetomo Inoue, Kenichi Goushi, Hiroko Nomura, and Chihaya Adachi

Material Research Socieety Spring Meeting  2012.4 

エキサイプレックスを用いた遅延蛍光有機EL素子

合志憲一，野村洸子，安達千波矢

第59回応用物理学関係連合講演会  2012.3 

遅延蛍光有機EL素子 Invited

合志憲一, 野村洸子, 安達千波矢

学振第125委員会EL分科会 第40回研究会  2012.2 

Organic light-emitting diodes using exciplex states to promote high reverse intersystem crossing efficiency International conference

Kenichi Goushi, Kou Yoshida, Keigo Sato, and Chihaya Adachi

The Nanotech Revolution  2011.12 

UV absorption measurement of electric field-induced polaron in organic semiconductors and elucidation of the process of exciton annhilation caused by electrically pumping International conference

Miki Kamoto, Kenichi Goushi, Hiroko Noumura, Takuma Yasuda, and Chihaya Adachi

The 3rd Asian Conference on Organic Electronics  2011.11 

Exciplex states having high reverse intersystem crossing efficiency and application to organic light-emitting diodes International conference

Kenichi Goushi, Kou Yoshida, Keigo Sato, and Chihaya Adachi

The 3rd Asian Conference on Organic Electronics  2011.11 

Light emitting organic single crystal OFET having split gate structure aiming for high current density with high external quantum efficiency International conference

Hayato Kakizoe, Kenichi Goushi, Tomohiko Edura, and Chihaya Adachi

The 3rd Asian Conference on Organic Electronics  2011.11 

高効率熱活性化遅延蛍光の実現と新しい有機ELデバイスの構築へ Invited

合志憲一, 安達千波矢

第6回超分子研究会講座  2011.10 

スプリットゲート発光トランジスタの発光特性 -スプリット幅依存性とキャリア再結合過程の解明-

垣添勇人, 合志憲一, 江面知彦, 安達千波矢

第72回 応用物理学会学術講演会  2011.8 

有機アモルファス薄膜のブラッシングによる配向制御機構

荒井俊晴, 合志憲一, 江面知彦, 野村洸子, 安達千波矢

第72回 応用物理学会学術講演会  2011.8 

有機半導体におけるポーラロン状態の吸収過程の測定

嘉本美希, 合志憲一, 野村洸子, 安田琢磨, 安達千波矢

第72回 応用物理学会学術講演会  2011.8 

DELAYED FLUORESCENCE BY REVERSE INTERSYSTEM CROSSING AND APPLICATION TO ORGANIC LIGHT-EMITTING DIODES Invited International conference

Kenichi Goushi and Chihaya Adachi

FINELUMEN International Summer School  2011.5 

S1-T1間ゼロギャップ有機発光材料の創出とOLEDへの応用

佐藤圭悟, 合志憲一, 宮崎浩, 吉村和明, 甲斐孝弘, 川田敦, 安達千波矢

第５８回春季応用物理学会  2011.3 

スプリットゲート構造を有する発光型有機単結晶トランジスタ

垣添勇人, 合志憲一, 江面知彦, 安達千波矢

第５８回春季応用物理学会  2011.3 

ブラッシングによる有機半導体薄膜の分子配向制御

荒井俊晴, 合志憲一, 江面知彦, 安達千波矢

第５８回春季応用物理学会  2011.3 

高い発光効率を有するエキサイプレックス発光の探索とOLEDへの展開

吉田巧, 合志憲一, 佐藤圭悟, 安達千波矢

第５８回春季応用物理学会  2011.3 

逆項間交差による遅延蛍光を利用した有機ＥＬの開発 Invited

合志 憲一, 遠藤 礼隆, 佐藤 圭悟, 吉田 巧, 安達 千波矢

日本学術振興会第142委員会  2011.3 

Organic Light Emitting Diode Having a Liquid Emitting Layer Doped with an Organic Salt International conference

Heo Hyo Jung, Shuzo Hirata, Korefumi Kubota, Osamu Hirata, Kenichi Goushi, Masayuki Yahiro, and Chihaya Adachi

MRS  2010.11 

Organic Magnetoresistance Based onto Exciplex States International conference

Kenichi Goushi and Chihaya Adachi

MRS  2010.11 

High Reverse Intersystem Crossing Efficiency Using Exciplex Formation International conference

Kenichi Goushi, Kou Yoshida, Keigo Sato, and Chihaya Adachi

MRS  2010.11 

エキサイプレックス状態の高い逆項間交差確率の検証

吉田 巧, 合志憲一, 佐藤圭悟, 安達千波矢

応用物理学会学術講演会  2010.9 

エキサイプレックス形成に基づく有機磁気抵抗

合志憲一, 安達千波矢

応用物理学会学術講演会  2010.9 

液体有機半導体のキャリア電導機構の解析

久保田是史, 平田修造, 合志憲一, 安達千波矢

応用物理学会学術講演会  2010.9 

液体半導体を発光層に有する有機EL素子の発光効率の改善

平田修造, 久保田是史, Jung Heo Hyo, 平田 修, 合志憲一, 八尋正幸, 安達千波矢

応用物理学会学術講演会  2010.9 

Irppy誘導体のホストーゲスト, ゲストーゲスト分子間相互作用

河村 祐一郎, 合志 憲一, 安達 千波矢

2005.2

高効率有機リン光ダイオードの材料開発動向 (特集 有機ELディスプレイと関連部材)

安達 千波矢, 河村 祐一郎, 合志 憲一

ディスプレイ   2004.9

有機金属リン光材料のPL及びEL過程

河村 祐一郎, 合志 憲一, 高橋 教悦, 安達 千波矢

2004.2

有機リン光デバイスの発光メカニズムと展望

合志 憲一, 猪股 寛子, 安達 千波矢

2003.3

Screening of academic papers

Role(s)： Peer review

2020

Organizing Committee International contribution

10th International Conference on Molecular Electronics and Bioelectronics (M&BE9)  （ Nara Kasugano International Forum IRAKA, Nara Japan ） 2019.6

Organizing Committee International contribution

10th International Conference on Molecular Electronics and Bioelectronics (M&BE9)  （ Nara Kasugano International Forum IRAKA, Nara Japan ） 2019.6

Screening of academic papers

Role(s)： Peer review

2019

Screening of academic papers

Role(s)： Peer review

2018

Organizing Committee International contribution

9th International Conference on Molecular Electronics and Bioelectronics (M&BE9)  （ Ishikawa Ongakudo and ANA Crowne Plaza Kanazawa, Kanazawa Japan ） 2017.6

世話人

第38回光化学若手の会  （ 休暇村志賀島 ） 2017.6

Screening of academic papers

Role(s)： Peer review

2017

座長（Chairmanship）

第64回高分子討論会  （ 東海大学 ） 2015.9

座長（Chairmanship） International contribution

2015.6

Japanese Journal of Applied Physics International contribution

2015.4 - 2019.3

座長（Chairmanship） International contribution

2014.3

座長（Chairmanship）

第74回応用物理学会秋季学術講演会  （ 同志社大学 ） 2013.9

座長（Chairmanship）

第59回応用物理学関係連合講演会  （ 早稲田大学 ） 2012.3

座長（Chairmanship）

第６２回応用物理学会春季学術講演会  （ 東海大学 ） 2012.3

座長（Chairmanship）

第５８回春季応用物理学会  （ 神奈川工科大学 ） 2011.3

座長（Chairmanship） International contribution

2011.2

遅延蛍光型エキサイプレックスにおける励起子拡散に関する研究

2014

公益財団法人カシオ科学振興財団　研究助成

学術奨励金

2013

研究助成金

2013

エキサイプレックス状態の高い逆項間交差確率を利用した高効率有機EL素子の実現

2011

有機半導体界面での電荷移動を用いたキャリアドープの実現

Grant number：22750163  2010 - 2011

科学研究費助成事業  若手研究(B)

有機半導体・完全単結晶の成長機構の解明と電子デバイスの応用

Grant number：20245038  2008 - 2010

日本学術振興会  科学研究費助成事業  基盤研究(A)

有機半導体・完全単結晶の成長機構の解明と電子デバイスの応用

Grant number：20245038  2008 - 2010

日本学術振興会  科学研究費助成事業  基盤研究(A)

Ｇ30コース3年次・後学期

2022.10 - 2023.3   Second semester

物質科学工学実験第二

2022.4 - 2022.9   First semester

Ｇ30コース3年次・前学期

2022.4 - 2022.9   First semester

物質科学工学実験第一

2021.10 - 2022.3   Second semester

科学英語３

2021.10 - 2022.3   Second semester

Ｇ30コース3年次・後学期

2021.10 - 2022.3   Second semester

物質科学工学実験第二

2021.10 - 2022.3   Second semester

Ｇ30コース3年次・前学期

2021.4 - 2021.9   First semester

科学英語３

2020.10 - 2021.3   Second semester

物質科学工学実験第一

2020.10 - 2021.3   Second semester

Ｇ30コース3年次・前学期

2020.10 - 2021.3   Second semester

物質科学工学実験第三

2020.10 - 2021.3   Second semester

Ｇ30コース3年次・後学期

2020.4 - 2020.9   First semester

Ｇ30コース3年次・前学期

2019.10 - 2020.3   Second semester

科学英語３

2019.10 - 2020.3   Second semester

物質科学工学実験第一

2019.10 - 2020.3   Second semester

物質科学工学実験第二

2019.4 - 2019.9   First semester

Ｇ30コース3年次・後学期

2019.4 - 2019.9   First semester

Ｇ30第７期生3年次・前学期

2018.10 - 2019.3   Second semester

科学英語３

2018.10 - 2019.3   Second semester

物質科学工学実験第一

2018.10 - 2019.3   Second semester

物質科学工学実験第二

2018.4 - 2018.9   First semester

Ｇ30第６期生3年次・後学期

2018.4 - 2018.9   First semester

分析化学演習

2017.10 - 2018.3   Second semester

科学英語３

2017.10 - 2018.3   Second semester

物質科学工学実験第一

2017.10 - 2018.3   Second semester

Ｇ30第６期生3年次・前学期

2017.10 - 2018.3   Second semester

Ｇ30第５期生3年次・後学期

2017.4 - 2017.9   First semester

物質科学工学実験第二

2017.4 - 2017.9   First semester

科学英語３

2016.10 - 2017.3   Second semester

Ｇ30第５期生3年次・前学期

2016.10 - 2017.3   Second semester

物質科学工学実験第一

2016.10 - 2017.3   Second semester

Ｇ30第4期生3年次・後学期

2016.4 - 2016.9   First semester

物質科学工学実験第二

2016.4 - 2016.9   First semester

物質科学工学実験第一

2015.10 - 2016.3   Second semester

Ｇ30第３期生3年次・前学期

2015.10 - 2016.3   Second semester

物質科学工学実験第三

2015.10 - 2016.3   Second semester

Ｇ30第4期生3年次・後学期

2015.4 - 2015.9   First semester

Ｇ30第２期生3年次・後学期

2015.4 - 2015.9   First semester

Ｇ30第3期生3年次・後学期

2015.4 - 2015.9   First semester

物質科学工学実験第三

2014.10 - 2015.3   Second semester

Ｇ30第３期生3年次・前学期

2014.10 - 2015.3   Second semester

Ｇ30第２期生3年次・後学期

2014.4 - 2014.9   First semester

Ｇ30第2期生3年次・前学期

2013.10 - 2014.3   Second semester

物質科学工学実験第三

2013.10 - 2014.3   Second semester

Ｇ30第1期生3年次・後学期

2013.4 - 2013.9   First semester

コアセミナー

2013.4 - 2013.9   First semester

物質科学工学実験第三

2012.10 - 2013.3   Second semester

物質科学工学実験第三

2011.10 - 2012.3   Second semester

物質科学工学実験第三

2010.10 - 2011.3   Second semester