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Vibronic coupling effect on intersystem crossing rates of TADF emitters

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摘要 To take advantage of all the singlet and triplet excitons and then achieve 100%internal quantum efficiency in OLED devices,the scientists have proposed the thermally activated delayed fluorescence(TADF)strategy which tries to achieve"delayed"fluorescence by converting triplet excitons to singlet excitons through a reverse intersystem crossing(ISC/RISC)process with the help of thermal activation[1].In the early days,the efficient RISC processes were facilitated by a negligible energy gap(△E_(ST))and a large spin-orbit coupling(SOC)matrix element(SOCME)between the first singlet(S_(1))and triplet(T_(1))excited states.
出处 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2024年第6期22-24,共3页 结构化学(英文)
基金 support from the National Natural Science Foundation of China(Nos.22033006,22173074 and 92372105).
关键词 COUPLING SYSTEM EMITTER
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