Affiliation:
1. State Key Laboratory of Luminescent Materials and Devices and Institute of Polymer Optoelectronic Materials and Devices South China University of Technology Wushan Road 381 Guangzhou 510640 P. R. China
Abstract
AbstractPurely organic sulfone‐embedded materials play a significant role in thermally activated delayed fluorescence (TADF) emitters with theoretical 100 % exciton utilization for highly efficient organic light‐emitting diodes. However, intrinsic emission mechanism featuring twisted intramolecular charge transfer design strategy leads to severe structural distortion between ground state and excited state, disabling traditional sulfone‐based TADF emitters to achieve narrowband emission and high colour purity for wide colour gamut display. Recently, sulfone‐embedded narrowband TADF emitters have gradually emerged. Herein, we summarize the currently reported sulfone‐based narrowband emitters, with emphasis on the perspectives of molecular design, role of sulfone group in fused skeleton, photophysical property as well as future application prospect of this sort of materials.
Funder
National Natural Science Foundation of China
Basic and Applied Basic Research Foundation of Guangdong Province
Subject
Organic Chemistry,Physical and Theoretical Chemistry,Analytical Chemistry