C1‐Linked Spirobifluorene Dimers: Pure Hydrocarbon Hosts for High‐Performance Blue Phosphorescent OLEDs
作者:Lambert J. Sicard、Hong‐Cheng Li、Qiang Wang、Xiang‐Yang Liu、Olivier Jeannin、Joëlle Rault‐Berthelot、Liang‐Sheng Liao、Zuo‐Quan Jiang、Cyril Poriel
DOI:10.1002/anie.201813604
日期:2019.3.18
Reported here are C1‐linked spiro‐bifluorene dimers. A comprehensive study is carried out to analyze the electronic properties of these highly twisted structures. This work shows that the C1‐position enables the design of pure hydrocarbon materials, with a high triplet energy, for hosting blue phosphors in efficient phosphorescent OLEDs (PhOLEDs). To date, this work describes the highest performance
此处报道的是C1连接的螺二芴二聚体。进行了全面的研究,以分析这些高度扭曲的结构的电子性能。这项工作表明,C1位置可以设计具有高三重态能量的纯烃材料,用于在高效磷光OLED(PhOLED)中容纳蓝色磷光体。迄今为止,这项工作描述了蓝色PhOLED在纯烃中的最高性能(外部量子效率约为23%),从而突显了C1-螺二芴支架在有机电子领域的潜力。