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Acta Phys. -Chim. Sin.  2015, Vol. 31 Issue (10): 1823-1852    DOI: 10.3866/PKU.WHXB201506192
REVIEW     
Progress of White Organic Light-Emitting Diodes
LIU Bai-Quan1, GAO Dong-Yu2, WANG Jian-Bin1, WANG Xi2, WANG Lei1, ZOU Jian-Hua1, NING Hong-Long1, PENG Jun-Biao1
1 State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China;
2 New Vision Opto-Electronic Technology Co., Ltd., Guangzhou 510530, P. R. China
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Abstract  

White organic light-emitting diodes (WOLEDs) are now approaching mainstream display markets, and they are also being aggressively investigated for next-generation lighting applications because of their extraordinary characteristics, such as high efficiency, high luminance, lower power consumption, wide viewing angle, fast switching, ultralight weight, and flexibility. In this paper, we first introduce the various approaches to realize WOLEDs, and then summarize the properties and differences of the four types of WOLEDs from the perspective of the emitting materials. The recent development of fluorescent, phosphorescent, fluorescent/ phosphorescent hybrid, and delayed fluorescence WOLEDs is comprehensively illustrated. By combining with our published works, we systematically review the device structures, design strategies, working mechanisms, physical theories, and electroluminescent processes of the reported WOLEDs. Then, the development of flexible WOLED is presented. Finally, the existing problems and trends of WOLEDs are discussed.



Key wordsOrganic light-emitting diode      White light      Display      Lighting      Flexibility      Luminous material      Device structure     
Received: 27 March 2015      Published: 19 June 2015
MSC2000:  O644  
Fund:  

The project was supported by the National Key Basic Research Program of China (973) (2015CB655000), National Natural Science Foundation of China (51173049, 61401156), Guangdong Innovative Research Team Program, China (201101C0105067115), Provincial Major Project, Guangdong Provincial Education Department, China (2014KZDXM010, 2014GKXM012), National Laboratory for Infrared Physics Open Project, Chinese Academy of Sciences (M201406), and Guangzhou Science and Technology Plan, China (2013Y2-00114).

Corresponding Authors: ZOU Jian-Hua, PENG Jun-Biao     E-mail: zou1007@gmail.com;psjbpeng@scut.edu.cn
Cite this article:

LIU Bai-Quan, GAO Dong-Yu, WANG Jian-Bin, WANG Xi, WANG Lei, ZOU Jian-Hua, NING Hong-Long, PENG Jun-Biao. Progress of White Organic Light-Emitting Diodes. Acta Phys. -Chim. Sin., 2015, 31(10): 1823-1852.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB201506192     OR     http://www.whxb.pku.edu.cn/Y2015/V31/I10/1823

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