3‐Cyano Imidazopyridine Acceptor‐based Bipolar and n‐type Host Materials for Phosphorescent Organic Light‐Emitting Diodes,Asian Journal of Organic Chemistry

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3‐Cyano Imidazopyridine Acceptor‐based Bipolar and n‐type Host Materials for Phosphorescent Organic Light‐Emitting Diodes
Asian Journal of Organic Chemistry ( IF 2.8 ) Pub Date : 2018-08-14 , DOI: 10.1002/ajoc.201800440
Shantaram Kothavale ₁ , Kyung Hyung Lee ₁ , Jun Yeob Lee ₁

Affiliation

Two host materials named 8‐(3‐(9H‐carbazol‐9‐yl)phenyl)‐2‐phenylimidazo[1,2‐a]pyridine‐3‐carbonitrile (mCzImPy) and 8,8′‐(1,3‐phenylene)bis(2‐phenylimidazo[1,2‐a]pyridine‐3‐carbonitrile) (mBisImPy) were synthesized as a bipolar host and a n‐type host, respectively, from the herocyclic imidazopyridine unit through its 3‐position CN modification. They worked as the hosts of yellow phosphorescent emitter and the mCzImPy host achieved high quantum efficiency of 18.2% in the yellow phosphorescent devices. Therefore, the 3‐cyanoimidazopyridine showed potential as an electron transport unit of host design.

中文翻译：

基于3-氰基咪唑并吡啶受体的双极性和n型主体材料，用于磷光有机发光二极管

两种主体材料分别为8-（3-（9H-咔唑-9-基）苯基）-2-苯基咪唑并[1,2-a]吡啶-3-腈（mCzImPy）和8,8'-（1,3-亚苯基）双（2-苯基咪唑并[1,2-a]吡啶-3-腈）（mBisImPy）分别通过双环的咪唑并吡啶单元的3位CN修饰合成为双极性主体和an型主体。他们作为黄色磷光发射体的主体，mCzImPy主体在黄色磷光器件中实现了18.2％的高量子效率。因此，3-氰基咪唑并吡啶显示出作为宿主设计电子传输单位的潜力。

更新日期：2018-08-14

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