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一种三氟甲基取代的叔丁基联蒽类多功能 蓝光材料及OLED性能研究

发表时间:2018-02-28  浏览量:686  下载量:143
全部作者: 吕响,任静琨,李战锋,郝玉英
作者单位: 太原理工大学物理与光电工程学院
摘 要: 设计并合成了一种三氟甲基取代的叔丁基联蒽衍生物(TBBAn-3,5-CF3),其具有优异的热稳定性(玻璃化转变温度和热分解温度分别为136℃和349℃)和良好的发光性能。以TBBAn-3,5-CF3作为发光层器件得到了色坐标为(0.15, 0.07)的深蓝光;以4,4’-二(咔唑-9-基)-联苯(CBP)为主体材料、TBBAn-3,5-CF3为客体掺杂材料的器件具有较高的蓝光发光性能;同时以TBBAn-3,5-CF3材料为蓝光主体材料,掺杂4,4’-[1,4-亚苯基二-(1E)-2,1-乙烯二基]二(N,N-二苯基苯胺)(DSA-ph)得到了高效稳定的蓝光发光器件,其最大发光亮度超过11 000 cd·m-2,最大电流密度为4.11 cd·A-1,最大外量子效率为2.86%. 因此,TBBAn-3,5-CF3可作为新型高性能的多功能蓝光发光材料。
关 键 词: 半导体技术;联蒽;蓝光主体;深蓝光;有机电致发光器件
Title: A multifunctional blue material for high-performance OLED with trifluoromethyl-substituted bianthracene
Author: LÜ Xiang, REN Jingkun, LI Zhanfeng, HAO Yuying
Organization: College of Physics and Optoelectronics, Taiyuan University of Technology
Abstract: A new multifunctional blue material with trifluoromethyl-substituted bianthracene derivative (TBBAn-3,5-CF3) has been designed and synthesized. The compound is thermally stable with glass transition temperature of 136℃ and thermal decomposition temperature of 349℃, as well as a favorable luminescent property. Non-doped deep-blue device using TBBAn-3,5-CF3 as the emitter shows the coordinates of (0.15, 0.07). On the other hand, the device using the host 4,4’-bis(N-carbazolyl)biphenyl (CBP) doped with the TBBAn-3,5-CF3 exhibits higher performance of blue light. Furthermore, the stable device using TBBAn-3,5-CF3 as blue host with DSA-ph dopant obtains high performance with maximum luminance of over 11 000 cd/m2, maximum current efficiency of 4.11 cd/A, corresponding to 2.86% of the maximum external quantum efficiency (EQE). Thus, we believe that TBBAn-3,5-CF3 will play an essential role in multifunctional blue material.
Key words: semiconductor technology; bianthracene; blue host; deep-blue; organic light-emitting device (OLED)
发表期数: 2018年2月第4期
引用格式: 吕响,任静琨,李战锋,等. 一种三氟甲基取代的叔丁基联蒽类多功能 蓝光材料及OLED性能研究[J]. 中国科技论文在线精品论文,2018,11(4):398-404.
 
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