Development of high-efficiency organic phosphorescence thin films and their application in light-emitting devices

Abstract

Recent organic light-emitting diodes (OLEDs) have realized the ultimate electroluminescence efficiency of nearly 100% using organometallic phosphorescent materials. In this paper, we describe the basic photoluminescence characteristics and the concentration quenching of iridium complexes in a solid state and in solution. We propose material and device structure designs aimed at high-efficiency OLEDs.