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Title: High-efficiency and high-luminance three-color white organic light-emitting diodes with low efficiency roll-off
Authors: Zhou, Junhong
Zou, Jianhua
Dai, Caihong
Zhang, Yong
Luo, Xudong
Liu, Baiquan
Keywords: Organic Light-emitting Diodes
Engineering::Electrical and electronic engineering
Low Efficiency Roll-off
Issue Date: 2018
Source: Zhou, J., Zou, J., Dai, C., Zhang, Y., Luo, X., & Liu, B. (2018). High-efficiency and high-luminance three-color white organic light-emitting diodes with low efficiency roll-off. ECS Journal of Solid State Science and Technology, 7(6), R99-R103. doi:10.1149/2.0081806jss
Series/Report no.: ECS Journal of Solid State Science and Technology
Abstract: For the first time, double blue emitting layers have been functioned as the main exciton generation zone to achieve high-performance three-color phosphorescent white organic light-emitting diodes (WOLEDs). The WOLED exhibits the maximum forward-viewing external quantum efficiency (EQE) and power efficiency (PE) of 21.2% and 50.0 lm/W, respectively. Even at 1000 c d / m2, the forward-viewing EQE and PE are as high as 18.0 % and 32.5 lm / W, respectively, indicating low efficiency roll-off. Besides, the WOLED shows a maximum luminance of 81156 c d / m2. Moreover, by manipulating the excitons distribution, a WOLED can achieve a high color rendering index of 80. The findings may provide a new opportunity to achieve high-efficiency, high-luminance and low efficiency roll-off WOLEDs.
ISSN: 2162-8769
DOI: 10.1149/2.0081806jss
Schools: School of Electrical and Electronic Engineering 
Organisations: Luminous! Center of Excellence for Semiconductor Lighting and Displays
Rights: © The Electrochemical Society, Inc. 2018. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in ECS Journal of Solid State Science and Technology, 7, 6, R99-R103.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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