Extremely high-efficiency and ultrasimplified hybrid white organic light-emitting diodes exploiting double multifunctional blue emitting layers

Bai-Quan Liu; Lei Wang; Dong-Yu Gao; Jian-Hua Zou; Hong-Long Ning; Jun-Biao Peng; Yong Cao

doi:10.1038/lsa.2016.137

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Extremely high-efficiency and ultrasimplified hybrid white organic light-emitting diodes exploiting double multifunctional blue emitting layers

Original Articles

- Extremely high-efficiency and ultrasimplified hybrid white organic light-emitting diodes exploiting double multifunctional blue emitting layers
- Light: Science & Applications Vol. 5, Issue 3, (2016)
- Affiliations：
  
  1.Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
  2.New Vision Opto-Electronic Technology Co., Ltd, Guangzhou 510530, China
- Author bio：
  
  JH Zou, Email: zou1007@gmail.com
  JB Peng, Email: psjbpeng@scut.edu.cn
- Funds：
- DOI：10.1038/lsa.2016.137
  CLC：
- Published：2016-09，
  
  Published Online：21 March 2016，
  
  Received：06 May 2015，
  
  Revised：07 March 2016，
  
  Accepted：17 March 2016
- Accepted：
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Liu, B. Q. et al. Extremely high-efficiency and ultrasimplified hybrid white organic light-emitting diodes exploiting double multifunctional blue emitting layers. Light: Science & Applications, 5, e16137 (2016).
DOI：

Liu, B. Q. et al. Extremely high-efficiency and ultrasimplified hybrid white organic light-emitting diodes exploiting double multifunctional blue emitting layers. Light: Science & Applications, 5, e16137 (2016). DOI： 10.1038/lsa.2016.137.

摘要

Abstract

Numerous hybrid white organic light-emitting diodes (WOLEDs) have recently been developed. However

their efficiency is not comparable to that of their best all-phosphorescent WOLED counterparts

and the structures are usually complicated

restricting their further development. Herein

a novel concept is used to achieve a hybrid WOLED

whose crucial feature is the exploitation of double multifunctional blue emitting layers. The three-organic-layer WOLED exhibits a total efficiency of 89.3 and 65.1 lm W

–1

at 100 and 1000 cd m

–2

respectively

making it the most efficient hybrid WOLED reported in the literature so far. Significantly

the efficiencies of hybrid WOLEDs have

for the first time

been demonstrated to be comparable to those of the best all-phosphorescent WOLEDs. In addition

the device exhibits the lowest voltages among hybrid WOLEDs (i.e.

2.4

2.7 and 3.1 V for 1

100 and 1000 cd m

–2

respectively). Such remarkable performance achieved from such an ultrasimplified structure opens a new path toward low-cost commercialization.

关键词

Keywords

efficiencyefficiency roll-offhybridstructurewhite organic light-emitting diodes

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