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Thermally Activated Delayed Fluorescence Polysiloxanes with Short Delay Fluorescence Lifetimes
Author(s) -
Liu Silu,
Li Quanwei,
Hua Lei,
Zhao Zhennan,
Ren Zhongjie,
Yan Shouke
Publication year - 2022
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202270046
Subject(s) - intersystem crossing , fluorescence , quantum yield , photochemistry , photoluminescence , materials science , cover (algebra) , optoelectronics , chemistry , optics , physics , atomic physics , excited state , singlet state , mechanical engineering , engineering
Front Cover : Random and order‐controlled blue‐emitting polysiloxanes with thermally activated delayed fluorescence characteristics are successfully designed and synthesized as demonstrated by Zhongjie Ren, Shouke Yan, and co‐authors in article 2200064. All of them display short prompt and delay fluorescence lifetimes and a very fast reverse intersystem crossing (RISC) rate of 10 7 s –1 . Compared with random copolysiloxanes, acceptors are well separated by donors for order‐controlled ones, which exhibit the faster RISC processes and the higher photoluminescence quantum yield.