Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter

doi:10.1088/1674-1056/23/7/077802

中国物理B ›› 2014, Vol. 23 ›› Issue (7): 77802-077802.doi: 10.1088/1674-1056/23/7/077802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter

魏娜^{a b}, 郭坤平^{a b}, 周朋超^{a b}, 于建宁^b, 魏斌^b, 张建华^b

a School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;
b Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, Shanghai 200072, China

收稿日期:2013-10-29 修回日期:2014-01-10 出版日期:2014-07-15 发布日期:2014-07-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61136003 and 61275041) and the Project of Science and Technology Commission of Shanghai Municipality, China (Grant No. 14XD1401800).

Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter

Wei Na (魏娜)^{a b}, Guo Kun-Ping (郭坤平)^{a b}, Zhou Peng-Chao (周朋超)^{a b}, Yu Jian-Ning (于建宁)^b, Wei Bin (魏斌)^b, Zhang Jian-Hua (张建华)^b

a School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;
b Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, Shanghai 200072, China

Received:2013-10-29 Revised:2014-01-10 Online:2014-07-15 Published:2014-07-15
Contact: Zhang Jian-Hua E-mail:jhzhang@staff.shu.edu.cn
About author:78.60.Fi; 72.80.Le
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61136003 and 61275041) and the Project of Science and Technology Commission of Shanghai Municipality, China (Grant No. 14XD1401800).

摘要/Abstract

摘要： We characterized the 6,12-bis{[N-(3,4-dimethylphenyl)-N-(2,4,5-trimethylphenyl)]}amino chrysene (BmPAC), which has been proven to be a blue fluorescent emission with high EL efficiency. The blue fluorescent device exhibits good performance with an external quantum efficiency of 5.8% and current efficiency of 8.9 cd/A, respectively. Using BmPAC, we also demonstrate a hybrid phosphorescence/fluorescence white organic light-emitting device (WOLED) with high efficiency of 36.3 cd/A. In order to improve the relative intensity of blue light, we plus a blue light-emitting layer (BEML) in front of the orange light emitting layer (YEML) to take advantage of the excess singlet excitons. With the new emitting layer of BEML/YEML/BEML, we demonstrate the fluorescence/phosphorescence/fluorescence WOLED exhibits good performance with a current efficiency of 47 cd/A and an enhanced relative intensity of blue light.

关键词: BmPAC, high efficiency, blue organic light emitting diodes, white organic light-emitting diodes

Abstract: We characterized the 6,12-bis{[N-(3,4-dimethylphenyl)-N-(2,4,5-trimethylphenyl)]}amino chrysene (BmPAC), which has been proven to be a blue fluorescent emission with high EL efficiency. The blue fluorescent device exhibits good performance with an external quantum efficiency of 5.8% and current efficiency of 8.9 cd/A, respectively. Using BmPAC, we also demonstrate a hybrid phosphorescence/fluorescence white organic light-emitting device (WOLED) with high efficiency of 36.3 cd/A. In order to improve the relative intensity of blue light, we plus a blue light-emitting layer (BEML) in front of the orange light emitting layer (YEML) to take advantage of the excess singlet excitons. With the new emitting layer of BEML/YEML/BEML, we demonstrate the fluorescence/phosphorescence/fluorescence WOLED exhibits good performance with a current efficiency of 47 cd/A and an enhanced relative intensity of blue light.

Key words: BmPAC, high efficiency, blue organic light emitting diodes, white organic light-emitting diodes

中图分类号: (Electroluminescence)

78.60.Fi

72.80.Le (Polymers; organic compounds (including organic semiconductors))

魏娜, 郭坤平, 周朋超, 于建宁, 魏斌, 张建华. Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter[J]. 中国物理B, 2014, 23(7): 77802-077802.

Wei Na (魏娜), Guo Kun-Ping (郭坤平), Zhou Peng-Chao (周朋超), Yu Jian-Ning (于建宁), Wei Bin (魏斌), Zhang Jian-Hua (张建华). Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter[J]. Chin. Phys. B, 2014, 23(7): 77802-077802.

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Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter

Pure blue and white light electroluminescence in a multilayer organic light-emitting diode using a new blue emitter

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