High‐Efficiency WOLEDs with High Color‐Rendering Index based on a Chromaticity‐Adjustable Yellow Thermally Activated Delayed Fluorescence Emitter

• DOI: 10.1002/adma.201505963
• Publication Date: 2016-04-10T17:51:22Z
• Authors: Xiang‐Long Li; Gaozhan Xie; Ming Liu; Dongcheng Chen; Xinyi Cai; Junbiao Peng; Yong Cao; Shi‐Jian Su
• Keywords: 7. Clean energy; 01 natural sciences; 0104 chemical sciences

A chromaticity-adjustable yellow thermally activated delayed fluorescence (TADF) material, PXZDSO2 as a triplet harvester provides a rational device concept, giving two-color and three-color pure organic white organic light-emitting diodes (WOLEDs) with unprecedented color-rendering index of 95 and external quantum efficiency of 19.2%.