基于2-(5,9-二氧杂a-13b-硼萘[3,2,1-de]蒽-8-基)-4-(三甲基硅基)吡啶螯合铱配合物的溶液处理天蓝色磷光有机发光二极管

IF 3.7 3区 工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Information Display Pub Date : 2022-07-18 DOI:10.1080/15980316.2022.2097484
Yeong Heon Jeong, C. Joo, Hyein Jeong, Jonghee Lee, Yun-hi Kim
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引用次数: 0

摘要

摘要:合成了一种新的2-(5,9-二氧杂A -13b-硼萘[3,2,1-de]蒽-8-基)-4-(三甲基硅基)吡啶基铱配合物,用于高效溶液处理天蓝磷光有机发光二极管(PhOLEDs)。研究了带电子接受基的二氧杂蒽代替苯基,以及带三甲基硅基的大体积吡啶对配体的影响。当掺杂在发射层中时,发现新掺杂剂具有极高的光致发光量子产率,达到94%。结果表明,无中间层结构的溶液处理蓝色PhOLED具有良好的发光性能,其外量子效率为8.93%,电流效率为23.56 cd/ a。
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Solution-processed sky-blue phosphorescent organic light-emitting diodes based on 2-(5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracene-8-yl)-4-(trimethylsilyl)pyridine chelated iridium complex
ABSTRACT A new 2-(5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracene-8-yl)-4-(trimethylsilyl)pyridine-based iridium complex was synthesized for efficient solution-processed sky-blue phosphorescent organic light-emitting diodes (PhOLEDs). The effect of dioxaboranaphthoanthracene instead of phenyl with the electron-accepting group, as well as the bulky pyridine with the trimethylsilyl group, on the ligand was investigated. The new dopant was found to have an extremely high photoluminescence quantum yield of 94% when doped in an emissive layer. As a result, the solution-processed blue PhOLED consisting of a simple structure without any interlayer exhibited remarkable light-emitting performance with an external quantum efficiency of 8.93% and a current efficiency of 23.56 cd/A.
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来源期刊
Journal of Information Display
Journal of Information Display MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
7.10
自引率
5.40%
发文量
27
审稿时长
30 weeks
期刊最新文献
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