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

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.

Keywords: BmPAC high efficiency blue organic light emitting diodes white organic light-emitting diodes

Received: 29 October 2013
Revised: 10 January 2014
Accepted manuscript online:

PACS:	78.60.Fi	(Electroluminescence)
	72.80.Le	(Polymers; organic compounds (including organic semiconductors))

Fund: 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).

Corresponding Authors: Zhang Jian-Hua
E-mail: jhzhang@staff.shu.edu.cn

About author: 78.60.Fi; 72.80.Le

Cite this article:

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 2014 Chin. Phys. B 23 077802

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

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