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题名: Prying into the limit of CIE value for TPE-based blue AIEgens in organic light-emitting diodes
作者: Zhan, Xuejun1; Yang, Min2; Yuan, Lei1; Gong, Yanbin1; Xie, Yujun1; Peng, Qian3; Ye, Shanghui2; Li, Qianqian1; Li, Zhen1
关键词: CIE ; Polyphenylbenzene ; Tetraphenylethene ; Aggregation-induced emission ; Blue emission ; Organic light-emitting diodes
刊名: DYES AND PIGMENTS
发表日期: 2016-05-01
卷: 128, 页:60-67
收录类别: SCI
英文摘要: By incorporating tetraphenylethene (TPE) into the platform of polyphenylbenzene through different linkage modes and adjustment of conjugation, four highly twisted luminogens were synthesized, of which showed good thermal stability verified by thermogravimetric and differential scanning calorimetry analysis. All these luminogens exhibited typical aggregation induced emission phenomenon. Utilizing them as emitting layers, nondoped fluorescent organic light-emitting diodes were fabricated. Thanks to their well-designed highly twisted structures, all devices showed blue to deep-blue emission. The deep-blue emission devices based on emitter containing meta-tetraphenylethene exhibited maximum current efficiency of 1.32 cd A(-1), while the Commission Internationale de l'Eclairage (CIE) coordinates were (0.16, 0.12), close to our previous report of deep-blue emission. Combined with our previous results, it might be predicted that perhaps, the CIE coordinates limit of TPE-based luminogens should be around (0.15, 0.11), and the CIEy is hard to break through 0.10, unless other building blocks with shorter conjugation used instead of TPE. (C) 2016 Elsevier Ltd. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35989
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China
2.Nanjing Univ Posts & Telecommun, IAM, Nanjing 210046, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China
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