Substituent engineering of the diboron molecular architecture for a nondoped and ultrathin emitting layer.

ABSTRACT: Owing to the high technology maturity of thermally activated delayed fluorescence (TADF) emitter design with a specific molecular shape, extremely high-performance organic light-emitting diodes (OLEDs) have recently been achieved via various doping techniques. Recently, undoped OLEDs have drawn immense attention because of their manufacturing cost reduction and procedure simplification. However, capable materials as host emitters are rare and precious because general fluorophores in high-concentration states suffer from serious aggregation-caused quenching (ACQ) and undergo exciton quenching. In this work, a series of diboron materials, CzDBA, iCzDBA, and tBuCzDBA, is introduced to realize the effect of steric hindrance and the molecular aspect ratio via experimental a

SUBMITTER: Wu TL 

PROVIDER: S-EPMC9667920 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature