A Silole-Based Efficient Electroluminescent Material with Good Electron-Transporting Potential
作者:Changyun Quan、Han Nie、Rongrong Hu、Anjun Qin、Zujin Zhao、Ben Zhong Tang
DOI:10.1002/cjoc.201500268
日期:2015.8
decomposition and glass‐transition temperatures of 257 and 171°C, respectively. The LUMO energy level (−2.96 eV) of (MesBF)2MTPS is lower than that of TPBi, revealing its electron‐transporting potential. Efficient organic light‐emitting diodes (OLEDs) are fabricated using (MesBF)2MTPS as emitter, which radiates yellow light at 554 nm, and affords high maximum luminance, current efficiency, and external quantum
合成了一种新的甲硅烷基衍生物2,5-双(7-(dimesitylboranyl)-9,9-dimethylfluoren-2-yl)-1-methyl-1,3,4-triphenylsilole((MesBF)2 MTPS)并表征。(MesBF)2 MTPS在THF溶液中显示出15%的良好荧光效率,在固体膜中显示出86%的较高效率,表现出聚集增强的发射特性。它具有良好的热稳定性和形态稳定性,分解温度和玻璃化转变温度分别为257和171°C。(MesBF)2 MTPS的LUMO能级(-2.96 eV)低于TPBi,显示出其电子传输潜能。使用(MesBF)2制造高效的有机发光二极管(OLED)MTPS作为发射体,其在554纳米的辐射黄色光,并且提供高最大亮度,电流效率,以及48348张CD外部量子效率·米-2,12.3 CD·A -1,和4.1%。