Blue Emitting 3 π-2 Spiro Terfluorene-Indenofluorene Isomers: A Structure-Properties Relationship Study
作者:Cyril Poriel、Joëlle Rault-Berthelot、Damien Thirion、Frédéric Barrière、Laurence Vignau
DOI:10.1002/chem.201102212
日期:2011.12.9
The (2,1‐a)‐DST‐IF isomer has been successfully used as emitting layer in a blue single‐layer small‐molecule organic light‐emitting diode (SMOLED) and appears as the first example of a blue emission arising from intramolecular terfluorenyl excimers. Regarding the importance of terfluorenyl derivatives in organic electronics, the present structure–properties relationship study, may open new avenues
两个新的三芴基衍生物,2,2'',7,7''-四(9,9-二辛基-9 H-芴-2-基)双螺[芴-9,11'-茚基-(2,1-一) -芴-12',9'' -芴]((2,1-一个)-dst-IF)和2,2'',7,7'' -四(9,9-二辛基9 ħ -芴-2-基)双螺-[芴-9,6'-茚基-(1,2- b)-芴-12',9''-芴]((1,2 - b)-DST-IF )已通过两种不同的合成方法合成。这些三芴基衍生物具有不同的中心茚并芴核,即(2,1– a)-茚并芴或(1,2– b)-茚并芴,它为二芴基荧光团施加了两个不同的几何形状和不同的结构环境,这转化为(2,1- a)-DST-IF和(1,2- b)-DST的光学和电化学性质完全不同-如果。通过组合的实验和理论方法对这些性质进行了仔细的研究。(2,1- a)-DST-IF异构体已成功用作蓝色单层小分子有机发光二极管(SMOLED)的发射层,