High efficiency red phosphorescence polymer light-emitting diodes based on polyfluorene as the host

作     者：Wang, Bao-Zheng Wen, Shang-Sheng Zhao, Bao-Feng Gui, Yu-Chang Zhang, Jian-Ping 

作者机构：Institute of Polymer Optoelectronic Materials and Devices Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology South China University of Technology Guangzhou 510640 China 

出 版 物：《Gongneng Cailiao/Journal of Functional Materials》 (Gongneng Cailiao)

年 卷 期：2011年第42卷第3期

页      面：574-576页

核心收录：

主　　题：Phosphorescence 

摘      要：Series of devices have been made based on a poss end capped polyfluorene and poly (N vinylcarazole) (PVK) as the host, a red Ir complex as the guest. An efficiency of 5.48cd/A was achieved, which surpassed that of device based on PVK as the host. The activity of PVK at the device based on PFO-poss as the host was also studied. We found PVK as the hole-transport layer also participate the process of energy exchange, which can raise the efficiency of the device.