Phenoxazine and phenothiazine embedded Multi-Resonance emitters for highly efficient Pure-Red OLEDs with improved color purity

Jiawei He,Yulin Xu,Sai Luo,Jingsheng Miao,Xiaosong Cao,Yang Zou

Chemical Engineering Journal（2023）

引用 6|浏览8

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摘要

•Phenoxazine and phenothiazine-embedded MR emitters are designed.•The designed MR emitters show red emission with superb photophysical properties.•OLEDs devices achieve high efficiency up to 34.5% and small efficiency roll-off.•Optimized device shows CIE coordinates (0.69, 0.31), approaching BT.2020 standard.

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关键词

Organic light emitting diodes, Multiple resonance, Thermally activated delayed fluorescence, Red emitter, Color-purity

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