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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 2017,Vol.33>> Issue(5)>> 1057-1064     doi: 10.3866/PKU.WHXB201702161         中文摘要
White Organic Light-Emitting Diodes Based on Exciton and Electroplex Dual Emissions
TAN Kang-Ming1, YAN Min-Nan1, WANG Ying-Nan1, XIE Ling-Hai1, QIAN Yan1, ZHANG Hong-Mei1, HUANG Wei1,2
1 Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing University of Posts & Telecommunications, Nanjing 210023, P. R. China;
2 Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
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Two new blue-light-emitting materials based on tetraphenylethylene (TPE), TPE-4Br, and TPE-3Br have been designed and synthesized. They have been used as emitting materials in organic light-emitting diodes (OLEDs) and have been found to form electroplex with an appropriate neighboring hole or electron transporting layer. Using the intrinsic local exciton emission and electroplex emission, desirable white electroluminescence has been obtained. Using TPE-4Br and TPE-3Br in 1,3-di(9H-carbazol-9-yl)benzene (mCP) matrix as the emitting layer, 4,4'-(cyclohexane-1,1-diyl)bis(N,N-di-p-tolylaniline) (TAPC) and 3,3'-(5'-(3-(pyridin-3-yl)phenyl)-[1,1':3',1"-terphenyl]-3,3"-diyl) dipyridine (TmPyPB) as the hole and electron transporting layers, respectively, Device A and Device B have been fabricated with the corresponding CIE coordinates of (0.32, 0.33) and (0.31, 0.34) at 9 V. Device B showed the maximum luminance of 364.66 cd·m-2 and the maximum current efficiency of 0.79 cd·A-1.



Keywords: White organic light-emitting diode   Electroplex   Tetraphenylethene   Solid state emission  
Received: 2016-12-14 Accepted: 2017-02-16 Publication Date (Web): 2017-02-16
Corresponding Authors: QIAN Yan, ZHANG Hong-Mei, HUANG Wei Email: iamyqian@njupt.edu.cn;iamhmzhang@njupt.edu.cn;iamwhuang@njupt.edu.cn

Fund: The project was supported by the National Basic Research Program of China (973 Program) (2012CB723402), Jiangsu National Synergistic Innovation Center for Advanced Materials, China (SICAM), Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) (YX03001), China, Synergistic Innovation Center for Organic Electronics and Information Displays, National Natural Science Foundation of China (21373114, 21573111, 61674081, 51333007), six Talents Peak Project of Jiangsu Province, China (XCL-CXTD-009), Qing Lan Project of Jiangsu Province, NUPT 1311 project, China.

Cite this article: TAN Kang-Ming, YAN Min-Nan, WANG Ying-Nan, XIE Ling-Hai, QIAN Yan, ZHANG Hong-Mei, HUANG Wei. White Organic Light-Emitting Diodes Based on Exciton and Electroplex Dual Emissions[J]. Acta Phys. -Chim. Sin., 2017,33 (5): 1057-1064.    doi: 10.3866/PKU.WHXB201702161

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