C
Chihaya Adachi
Researcher at Kyushu University
Publications - 976
Citations - 73313
Chihaya Adachi is an academic researcher from Kyushu University. The author has contributed to research in topics: OLED & Electroluminescence. The author has an hindex of 112, co-authored 908 publications receiving 61403 citations. Previous affiliations of Chihaya Adachi include Ricoh & Universal Display Corporation.
Papers
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Journal ArticleDOI
A Thermally Activated Delayed Fluorescence Green OLED with 4500 h Lifetime and 20% External Quantum Efficiency by Optimizing the Emission Zone using a Single‐Emission Spectrum Technique
R. Mac Ciarnain,Hin-Wai Mo,Kaori Nagayoshi,H. Fujimoto,Kentaro Harada,Robert Gehlhaar,Tung Huei Ke,Paul Heremans,Chihaya Adachi +8 more
TL;DR: In this article , a thermally activated delayed fluorescence organic LED emission zone is measured over all luminescing current densities, while varying the device structure and while ageing. But the emission zone size is below the optical diffraction limit, so it is difficult to measure.
Posted ContentDOI
Hot Exciplexes in U-Shaped TADF Molecules with Emission from Locally Excited States
A. Lennart Schleper,Kenichi Goushi,Kenichi Goushi,Christoph Bannwarth,Bastian Haehnle,Philipp J. Welscher,Chihaya Adachi,Chihaya Adachi,Alexander J. C. Kuehne +8 more
TL;DR: In this article, a hot exciplex model was proposed to enable access to both color purity and high color purity at the same time by coupling facing donor and acceptor moieties to an anthracene bridge.
Patent
New pyrene derivative and its production
TL;DR: In this paper, a pyrene derivative of formula I was obtained by reducing a dinitro compound of formula III to give a new diamino compound, then reacting this compound with a halobenzene compound (X is halogen).
Journal ArticleDOI
TADF activation by solvent freezing: The role of nonradiative triplet decay and spin-orbit coupling in carbazole benzonitrile derivatives
Takuya Hosokai,Takuya Hosokai,Hajime Nakanotani,Hajime Nakanotani,S. Santou,Hiroki Noda,Yasuo Nakayama,Chihaya Adachi,Chihaya Adachi +8 more
TL;DR: In this paper, a temperature dependent photoluminescence of carbazole benzonitrile derivatives in toluene solutions using a newly developed liquid nitrogen cryostat was investigated.
Journal ArticleDOI
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,Atula S. D. Sandanayaka,Toshinori Matsushima,Toshinori Matsushima,Chihaya Adachi,Chihaya Adachi +12 more