Aromatic-Imide-Based Thermally Activated Delayed Fluorescence Materials for Highly Efficient Organic Light-Emitting Diodes
Aromatic-Imide-Based Thermally Activated Delayed Fluorescence Materials for Highly Efficient Organic Light-Emitting Diodes
复制标题
用于高效有机发光二极管的芳香族酰亚胺基热激活延迟荧光材料
DOI：
10.1002/anie.201704435
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发表时间：
2017-07-17
影响因子：
16.6
通讯作者：
Chen, Chuan-Feng
中科院分区：
文献类型：
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作者：
Li, Meng;Liu, Yanwei;Chen, Chuan-Feng
高效地合成了具有扭曲的给体-受体-给体骨架的芳香酰亚胺基热激活延迟荧光(TADF)材料，该材料具有良好的热稳定性和较高的光致发光量子产率。较小的E-ST值(<；0.1 eV)和清晰的随温度变化的暂态光致发光(PL)延迟成分显示了它们优异的TADF特性。此外，采用TADF材料AI-Cz和AI-TbCz作为掺杂剂的有机电致发光二极管性能优异，外量子效率分别达到23.2%和21.1%。
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 Delta E-ST value (< 0.1 eV) along with the clear temperature-dependent delayed component of their transient photoluminescence (PL) spectra demonstrated their excellent TADF properties. Moreover, the performance of organic light-emitting diodes in which TADF materials AI-Cz and AI-TBCz were used as dopants were outstanding, with external quantum efficiencies up to 23.2 and 21.1%, respectively.