Thermally Activated Delayed Fluorescence Polysiloxanes with Short Delay Fluorescence Lifetimes

Abstract

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 107 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.