热激活延迟荧光敏化荧光对映体：一种实现高效圆偏振电致发光的新策略。
TADF-Sensitized Fluorescent Enantiomers: A New Strategy for High-Efficiency Circularly Polarized Electroluminescence.
作者信息
Li Meng, Chen Chuan-Feng
机构信息
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
出版信息
Chemistry. 2022 Feb 1;28(7):e202103550. doi: 10.1002/chem.202103550. Epub 2021 Dec 2.
A promising strategy of thermally activated delayed fluorescence (TADF) sensitized circularly polarized luminescence (CPL) has been proposed for improving the electroluminescence efficiencies of circularly polarized fluorescent emitters. Compared with chiral TADF emitters which suffer from the dilemma of small ΔE accompanied by small k , the TADF-sensitized CPL (TSCP) strategy using TADF molecules as sensitizers and CP-FL molecules as emitters might be the most promising method to construct high-performance circularly polarized organic light-emitting diodes (CP-OLEDs). Consequently, by taking advantage of the theoretically 100 % exciton utilization of TADF sensitizers, especially, by designing CP-FL emitters with high PLQY, narrow FWHM and large g values, TSCP-type CP-OLEDs with excellent overall performances can be realized.
为提高圆偏振荧光发射体的电致发光效率，人们提出了一种热激活延迟荧光（TADF）敏化圆偏振发光（CPL）的有效策略。与面临着ΔE小且k也小这一两难困境的手性TADF发射体相比，以TADF分子为敏化剂、CP-FL分子为发射体的TADF敏化CPL（TSCP）策略可能是构建高性能圆偏振有机发光二极管（CP-OLED）最有前景的方法。因此，利用TADF敏化剂理论上100%的激子利用率，特别是通过设计具有高PLQY、窄半高宽和大g值的CP-FL发射体，可以实现具有优异整体性能的TSCP型CP-OLED。
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