Donor/Acceptor Dihydroindeno[1,2-<i>a</i>]fluorene and Dihydroindeno[2,1-<i>b</i>]fluorene: Towards New Families of Organic Semiconductors
作者:Maxime Romain、Denis Tondelier、Bernard Geffroy、Olivier Jeannin、Emmanuel Jacques、Joëlle Rault-Berthelot、Cyril Poriel
DOI:10.1002/chem.201500336
日期:2015.6.22
performance in green and sky‐blue phosphorescent organic light‐emitting diodes (PhOLEDs) relative to the first generation of materials. To date, this is the highest performance ever reported for a blue PhOLED by using a dihydroindenofluorene derivative. Through this structure–property relationship study, a remarkable difference of performance between syn and anti isomers has also been highlighted. This
基于二氢[1,2-供体/受体半导体的新家族一]芴和二氢[2,1- b ]芴报告。由于螺旋桥的作用,新一代的二氢茚并芴可实现HOMO和LUMO的空间分离,从而保留了二氢茚并芴骨架的高E T值和出色的物理性能。对电子和物理性质的这种控制使第二代二氢茚并[1,2- a相对于第一代材料,在绿色和天蓝色磷光有机发光二极管(PhOLED)中可获得性能大大增强的]芴。迄今为止,这是使用二氢茚并芴衍生物对蓝色PhOLED进行报道的最高性能。通过这种结构-性质关系研究,还强调了顺式异构体和反式异构体之间的显着差异。这种令人惊讶的行为归因于两个分子的不同对称性,并突出了几何轮廓在PhOLED主体材料设计中的重要性。