TY - JOUR
T1 - Thermally Activated Delayed Fluorescence Properties of Trioxoazatriangulene Derivatives Modified with Electron Donating Groups
AU - Tsuchiya, Youichi
AU - Ishikawa, Yuma
AU - Lee, Sang Hoon
AU - Chen, Xian Kai
AU - Brédas, Jean Luc
AU - Nakanotani, Hajime
AU - Adachi, Chihaya
N1 - Funding Information:
The work at Kyushu University was supported financially by the Program for Building Regional Innovation Ecosystems of the Ministry of Education, Culture, Sports, Science and Technology, Japan, JST ERATO Grant JPMJER1305, Japan, and JSPS Core-to-core Program and Kyulux Inc. Support of the work by the College of Science at the University of Arizona is gratefully acknowledged.
Funding Information:
The work at Kyushu University was supported financially by the Program for Building Regional Innovation Ecosystems of the Ministry of Education, Culture, Sports, Science and Technology, Japan, JST ERATO Grant JPMJER1305, Japan, and JSPS Core‐to‐core Program and Kyulux Inc. Support of the work by the College of Science at the University of Arizona is gratefully acknowledged.
Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/7/10
Y1 - 2021/7/10
N2 - With the aim of achieving high-performance thermally activated delayed fluorescence, a series of trioxoazatriangulene derivatives are systematically developed by modifying the donor substituents. The emission colors are shifted from green to greenish-yellow and to yellow with rather broad spectral widths of 70–95 nm by introducing carbazole, triphenylamine, or diphenylamine donor units, indicating that each emission originates from a charge-transfer transition. On the other hand, the trioxoazatriangulene modified with three diphenylamines shows orange emission with a narrow emission spectrum (45 nm), suggesting that the transition mainly originates from a multiple resonance effect.
AB - With the aim of achieving high-performance thermally activated delayed fluorescence, a series of trioxoazatriangulene derivatives are systematically developed by modifying the donor substituents. The emission colors are shifted from green to greenish-yellow and to yellow with rather broad spectral widths of 70–95 nm by introducing carbazole, triphenylamine, or diphenylamine donor units, indicating that each emission originates from a charge-transfer transition. On the other hand, the trioxoazatriangulene modified with three diphenylamines shows orange emission with a narrow emission spectrum (45 nm), suggesting that the transition mainly originates from a multiple resonance effect.
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U2 - 10.1002/adom.202002174
DO - 10.1002/adom.202002174
M3 - Article
AN - SCOPUS:85101938475
SN - 2195-1071
VL - 9
JO - Advanced Optical Materials
JF - Advanced Optical Materials
IS - 14
M1 - 2002174
ER -