Advanced Materials

External quantum efficiency above 20% in deep blue phosphorescent organic Light??Emitting diodes

SO Jeon, SE Jang, HS Son, JY Lee

Index: Jeon, Soon Ok; Jang, Sang Eok; Son, Hyo Suk; Lee, Jun Yeob Advanced Materials, 2011 , vol. 23, # 12 p. 1436 - 1441

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Citation Number: 256

Abstract

The development of high-efficiency blue-light-emitting phosphorescent organic light-emitting diodes (PHOLEDs) is important in order to reduce the power consumption of organic light- emitting diodes (OLEDs) in display and lighting applications.[1–10] Iridium (III) bis (4, 6- (difluorophenyl)-pyridinato-N, C′) picolinate (FIrpic) has typically been used as the dopant material for blue PHOLEDs, with a theoretical maximum quantum efficiency of 20% ...