Synthesis and photophysical properties of 1,2-diphenylindolizine derivatives: fluorescent blue-emitting materials for organic light-emitting device
作者:Yeong Ran Song、Choon Woo Lim、Tae Woo Kim
DOI:10.1002/bio.2968
日期:2016.3
New blue‐emitting materials based on 1,2‐diphenylindolizine were designed and synthesized through a microwave‐assisted Suzuki coupling reaction. The photophysical, electrochemical, and thermal properties of the 1,2‐diphenylindolizine derivatives were investigated using UV–visible and fluorescence spectroscopy, cyclic voltammetry, thermogravimetric analysis, and differential scanning calorimetry. The
通过微波辅助的Suzuki偶联反应设计并合成了基于1,2-二苯基吲哚嗪的新的蓝色发光材料。使用紫外可见光谱和荧光光谱,循环伏安法,热重分析和差示扫描量热法研究了1,2-二苯基吲哚嗪衍生物的光物理,电化学和热性质。1,2-二苯基吲哚嗪衍生物的带隙为3.1–3.4 eV,显示出大约450 nm的适当发射,溶液和固体薄膜之间无显着差异。吲哚嗪衍生物显示出增强的热稳定性(∆T m > 100°C),与1,2-二苯基吲哚嗪相比。这些结果表明1,2-二苯基吲哚嗪衍生物适用于有机发光器件中的蓝色发光材料。版权所有©2015 John Wiley&Sons,Ltd.