基于四苯基乙烯的高效率聚集诱导发光材料的合成及光电性质
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- 英文论文题名：Synthesis and OLED Application of Aggregation-Induced Emission Materials Based on Tetraphenylethene
- 论文作者：林耿伟 ; 胡蓉蓉 ; 秦安军 ; 赵祖金 ; 唐本忠
- 英文论文作者：Gengwei Lin ; Rongrong Hu ; Anjun Qin ; Zujin Zhao ; Ben Zhong Tang ; State Key Laboratory of Luminescent Materials and Devices ; South China University of Technology ; Department of Chemistry ; The Hong Kong University of Science & Technology
- 年：2016
- 作者机构：华南理工大学发光材料与器件国家重点实验室;香港科技大学;
- 论文关键词：聚集诱导发光 ; 四苯基乙烯 ; 有机发光二极管 ; 电子迁移率
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十一分会：π-共轭材料
- 语种：中文
- 分类号：TQ422
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：114k
- 原文格式：O
- 会议级别：全国
摘要
具有聚集诱导发光(AIE)特性的发光材料由于其优异的发光性能,能够作为发光层制作高性能非掺杂OLED器件。我们通过在四苯基乙烯(TPE)上引入空穴传输基团三苯胺基团和/或电子传输基团苯并咪唑基团,设计合成了两种具有优异热稳定性的TPE衍生物(TPE-TPAPBI和TPE-DPBI)。实验研究结果表明,这两种TPE衍生物都具有AIE特性,其固态薄膜的荧光量子产率接近100%,而且电子迁移率可媲美甚至优于典型的电子传输材料TPBi。由于其高的电子迁移率和电荷传输的平衡,基于TPE-TPAPBI的OLED器件取得了优越的性能,最大亮度高达125300 cd/m~2,与此同时,它的最大电流效率、功率效率和外量子效率分别达到了16.8cd/A,14.6 lm/W和5.8%,并且只有很小的效率滚降,是一类优异的电致发光材料。
Luminescent materials with aggregation-induced emission(AIE) characteristics exhibit great potential in fabricating high-performance nondoped OLEDs.Herein,we designed and synthesized two thermally stable tetraphenylethene derivatives(TPE-TPAPBI and TPE-DPBI) functionalized with triphenylamine and/or benzimidazole groups.Experimental results show that both luminogens possess AIE characteristics with fluorescence quantum yields approaching 100%in sohd films.Their electron mobilities are comparable or even superior to that of 1,3,5-tris(phenyl-2-benzimidazoly1)benzene(TPBi).Thanks to the high electron mobility and good charge balance,nondoped OLED device employing TPE-TPAPBI as active layer performs outstandingly,affording remarkably high luminance of 125300 cd m~(-2),and excellent maximum current,power and external quantum efficiencies of 16.8 cd A~(-1),14.6 1m W~(-1) and 5.8%,respectively,with very small roll-offs.
Luminescent materials with aggregation-induced emission(AIE) characteristics exhibit great potential in fabricating high-performance nondoped OLEDs.Herein,we designed and synthesized two thermally stable tetraphenylethene derivatives(TPE-TPAPBI and TPE-DPBI) functionalized with triphenylamine and/or benzimidazole groups.Experimental results show that both luminogens possess AIE characteristics with fluorescence quantum yields approaching 100%in sohd films.Their electron mobilities are comparable or even superior to that of 1,3,5-tris(phenyl-2-benzimidazoly1)benzene(TPBi).Thanks to the high electron mobility and good charge balance,nondoped OLED device employing TPE-TPAPBI as active layer performs outstandingly,affording remarkably high luminance of 125300 cd m~(-2),and excellent maximum current,power and external quantum efficiencies of 16.8 cd A~(-1),14.6 1m W~(-1) and 5.8%,respectively,with very small roll-offs.
引文
[1]Hong,Y;Lam,J.W.Y;Tang,B.Z.Chem.Soc.Rev.2011,40:5361.