Aromatic-Imide-Based Thermally Activated Delayed Fluorescence Materials for Highly Efficient Organic Light-Emitting Diodes
作者:Meng Li、Yanwei Liu、Ruihong Duan、Xiaofang Wei、Yuanping Yi、Ying Wang、Chuan-Feng Chen
DOI:10.1002/anie.201704435
日期:2017.7.17
Aromatic‐imide‐based thermally activated delayed fluorescence (TADF) materials with a twisted donor–acceptor–donor skeleton were efficiently synthesized and exhibited excellent thermal stability and high photoluminescence quantum yields. The small ΔEST value (<0.1 eV) along with the clear temperature‐dependent delayed component of their transient photoluminescence (PL) spectra demonstrated their excellent
具有扭曲的施主-受主-施主骨架的基于芳族酰亚胺的热活化延迟荧光(TADF)材料得到了有效合成,并表现出出色的热稳定性和高的光致发光量子产率。较小的ΔE ST值(<0.1 eV)以及其瞬态光致发光(PL)光谱中清晰的温度相关延迟成分证明了其出色的TADF特性。此外,使用TADF材料AI-Cz和AI-TBCz作为掺杂剂的有机发光二极管的性能非常出色,其外部量子效率分别高达23.2%和21.1%。