Highly Efficient Fluorescent OLED based on TADF Host and Sensitizer

Abstract

A high EQE of 19.1% using TADF materials as host and sensitizer with a fluorescent emitter TBRb was obtained. The high performance was enabled by utilization of TADF molecules as sensitizer and host that permit efficient transfer of all electrically generated singlet and triplet excitons from the host to sensitizer then to the TBRb.