Saturated deep-blue emitter based on a spiro[benzoanthracene–fluorene]-linked phenanthrene derivative for non-doped organic light-emitting diodes
作者:Houjie Liang、Xinxin Wang、Xingye Zhang、Zhiyang Liu、Ziyi Ge、Xinhua Ouyang、Suidong Wang
DOI:10.1039/c4nj00735b
日期:——
A spiro[benzoanthraceneâfluorene] derivative containing a phenanthrene moiety, 2â²,3-di(phenanthren-9-yl)spiro[benzo[de]anthracene-7,9â²-fluorene] (DPSBAF), was prepared by a Suzuki coupling reaction. The photophysical and photochemical properties were investigated systematically. A non-doped organic light-emitting diode using DPSBAF as the emitter achieved a luminance efficiency of 2.18 cd Aâ1 with Commission Internationale de l'Ãclairage 1931 chromaticity coordinates of (0.15, 0.09). The synthesized spiro[benzoanthraceneâfluorene] derivative with a high thermal stability, a glass transition temperature of 210 °C and a decomposition temperature of 410 °C, shows potential for application in non-doped saturated deep-blue organic light-emitting diodes.
一种含有菲环部分的螺[苯并蒽–芴]衍生物,2′,3-二(菲-9-基)螺[苯并(de)蒽-7,9′-芴] (DPSBAF),通过铃木偶联反应合成。系统研究了其光物理和光化学性质。使用DPSBAF作为发光材料的非掺杂有机发光二极管实现了2.18 cd A−1的光效,以及国际照明委员会1931色度坐标为(0.15, 0.09)。合成的螺[苯并蒽–芴]衍生物具有高热稳定性,玻璃化转变温度为210°C,分解温度为410°C,显示出在非掺杂饱和深蓝有机发光二极管中的应用潜力。