著者

SANGARANGE DONATULA SANDANAYAKA Toshinori Matsushima Fatima Bencheikh Shinobu Terakawa William Potscavage Chuanjiang Qin Takashi Fujihara Kenichi Goushi Jean-Charles Ribierrea Chihaya Adachi

出版者

応用物理学会

雑誌

2019年第66回応用物理学会春季学術講演会

巻号頁・発行日

2019-01-25

著者

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

出版者

(社)日本化学会

雑誌

Chemistry Letters (ISSN:03667022)

巻号頁・発行日

vol.44, no.3, pp.360-362, 2015-03-05 (Released:2015-03-05)

参考文献数

25

被引用文献数

57

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A strategy for designing highly efficient thermally activated delayed fluorescence (TADF) emitters was reported. TADF emitters with donor–acceptor–donor (D–A–D)-type structures showed highly efficient TADF because of their small singlet–triplet energy gap and large oscillator strength. An organic light-emitting diode containing a D–A–D-type TADF emitter, cis-BOX2, exhibited a high external electroluminescence quantum efficiency of 17.6%.

著者

Hiroshi Ohkuma Tetsuya Nakagawa Katsuyuki Shizu Takuma Yasuda Chihaya Adachi

出版者

(社)日本化学会

雑誌

Chemistry Letters (ISSN:03667022)

巻号頁・発行日

vol.43, no.7, pp.1017-1019, 2014-07-05 (Released:2014-07-05)

参考文献数

26

被引用文献数

63

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A spiro compound DPAA-AF combining an electron-accepting diazafluorene unit and an electron-donating bis(diphenylamino)acridane unit has been synthesized and used as an emitter in organic light-emitting diodes. DPAA-AF exhibits efficient thermally activated delayed fluorescence, and a device based on this compound emits blue-greenish electroluminescence with a maximum external quantum efficiency of 9.6%.

著者

Hiroyuki Mieno Takuma Yasuda Yu Seok Yang Chihaya Adachi

出版者

(社)日本化学会

雑誌

Chemistry Letters (ISSN:03667022)

巻号頁・発行日

vol.43, no.3, pp.293-295, 2014-03-05 (Released:2014-03-05)

参考文献数

24

被引用文献数

10

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Thienoacene-based π-conjugated oligomers, DTT-NP8 and DTT-BT8, were designed and synthesized. Their strong intermolecular interactions originating from S···S contacts enable the fabrication of single-crystal microribbons via solution processing. Organic single-crystal transistors exhibited field-effect mobilities as high as 0.54 cm2 V−1 s−1 and on/off current ratio of ca. 106.