Enhanced Performance of Solution-processed Organic Light-Emitting Diodes by Hole-Transporting Interlayer

摘要

We fabricated multilayer organic light-emitting diodes (OLEDs) by solution-processing using an interlayer of tripheylamine-based polymer (KC-T). Because the highest occupied molecular orbital (HOMO) energy level of KC-T is higher than emitting layer constituents, the incorporation of KC-T interlayer resulted in reduction of turn-on voltage and increase of maximum efficiency.