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Highly stable blue light-emitting materials with a three-dimensional architecture: improvement of charge injection and electroluminescence performance
Lei, Ting3,4; Luo, Jia3,4; Wang, Lei1,2; Ma, Yuguo3,4; Wang, Jian1,2; Cao, Yong1,2; Pei, Jian3,4
刊名NEW JOURNAL OF CHEMISTRY
2010
DOI10.1039/b9nj00723g
34期:4页:699-707
收录类别SCI ; IC
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]ELECTRON-DEFICIENT MOIETIES ; HIGH-EFFICIENCY ; CONJUGATED POLYMERS ; SPIRO COMPOUNDS ; GREEN EMISSION ; POLYFLUORENE ; DIODES ; DEVICES ; DERIVATIVES ; OXADIAZOLE
英文摘要Two classes of blue emitters bearing electron-rich or electron-deficient units were developed for organic light-emitting diodes. Such shape persistent three-dimensional (3D) structures provided six molecules emitting pure and stable blue light. The photophysical, electrochemical, and thermal properties as well as the thin film morphologies of these blue emitters were investigated in detail. These results indicated that the side groups did not change the photophysical properties, but significantly affected the electrochemical properties to improve the charge injection and the aggregation behaviours of the molecules. The electroluminescence performance was greatly improved without using 1,3,5-tris(N-phenylbenzimidazol-2-yl) benzene (TPBI) as an electron injection layer after the introduction of Taz and Oxd as the side groups. In comparison with sFOMe, 9,9'-spirobifluorene-containing compounds (sFTaz, and sFOxd) exhibited better electroluminescence due to the improvement of the electron injection ability after the introduction of electron-deficient groups. These investigations provide us with an important way to improve the OLED efficiency through the modi. cation of the chemical structure.
语种英语
WOS记录号WOS:000276190800018
引用统计
被引频次:21[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141960
专题中国科学院大连化学物理研究所
作者单位1.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
2.Minist Educ, Key Lab Specially Funct Mat, Guangzhou 510640, Guangdong, Peoples R China
3.Peking Univ, Coll Chem, Key Lab Bioorgan Chem & Mol Engn, BNLMS, Beijing 100871, Peoples R China
4.Peking Univ, Coll Chem, Key Lab Polymer Chem, BNLMS, Beijing 100871, Peoples R China
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GB/T 7714
Lei, Ting,Luo, Jia,Wang, Lei,et al. Highly stable blue light-emitting materials with a three-dimensional architecture: improvement of charge injection and electroluminescence performance[J]. NEW JOURNAL OF CHEMISTRY,2010,34(4):699-707.
APA Lei, Ting.,Luo, Jia.,Wang, Lei.,Ma, Yuguo.,Wang, Jian.,...&Pei, Jian.(2010).Highly stable blue light-emitting materials with a three-dimensional architecture: improvement of charge injection and electroluminescence performance.NEW JOURNAL OF CHEMISTRY,34(4),699-707.
MLA Lei, Ting,et al."Highly stable blue light-emitting materials with a three-dimensional architecture: improvement of charge injection and electroluminescence performance".NEW JOURNAL OF CHEMISTRY 34.4(2010):699-707.
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