Issue 9, 2023

Recent advances in metal-free phosphorescent materials for organic light-emitting diodes

Abstract

Metal-free room temperature phosphorescence (RTP) emitters, owing to the high exciton utilization, have become a class of promising materials for phosphorescent organic light-emitting diodes (PhOLEDs). Notably, the increasingly deeper theoretical understanding of photophysical science helps develop high-performance RTP materials, stimulating the development of PhOLEDs. This review outlines recent advances in RTP emitters for PhOLEDs from the perspective of mechanisms and material systems of the emitting layer, including molecular design principles and detailed optoelectronic behaviors. Based on the knowledge of efficient metal-free PhOLED devices, we summarize a series of reported phosphorescent materials with high phosphorescence quantum efficiency and a short phosphorescent lifetime, which have potential application prospects in this field. Conclusions and outlook are presented to point out the development potential and challenges for further research of metal-free PhOLEDs.

Graphical abstract: Recent advances in metal-free phosphorescent materials for organic light-emitting diodes

Article information

Article type
Review Article
Submitted
10 Դկտ 2022
Accepted
21 Հնվ 2023
First published
26 Հնվ 2023

J. Mater. Chem. C, 2023,11, 3143-3161

Recent advances in metal-free phosphorescent materials for organic light-emitting diodes

Z. Zhou, X. Xie, Z. Sun, X. Wang, Z. An and W. Huang, J. Mater. Chem. C, 2023, 11, 3143 DOI: 10.1039/D2TC05256C

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