Organic Electropolymerized Multilayers for Light-Emitting Diodes and Displays

作者：Liang, Yiqian; Liu, Cao; Zhao, Manlin; Wang, Rong; Zhang, Donglian; Wang, Cong; Zhou, Lei; Wang, Lei; Xie, Zengqi; Peng, Junbiao; Liu, Linlin^*

来源：ACS applied materials & interfaces, 2020, 12(18): 20714-20721.

DOI：10.1021/acsami.9b22456

• electrochemistry
• carbazole
• organic light-emitting diodes
• polymerization
• TCTA

In electrochemistry, the carbazole is generally coupled to (inner but not to polymer. This work has reported that organic electropolymerization (OEP) of 4,4',4 ''-tri(N-carbazolyl)triphenylamine (TCTA) would form a high cross-linked carbazole polymer by its high activity/reversibility and a synchronous viscosity control. It has significantly improved the OEP film quality of both hole-transporting and electroluminescent layers in organic light-emitting diodes. As a result, the conductivity and power efficiency of the organic light-emitting diodes with TCTA are eight and four times of that without TCTA. A prototype display device with a 1.7 in. monochrome passive matrix of 58 ppi under the driving chip is successfully fabricated with accurate pixel size and uniform electroluminescence, which shows a great potential of OEP in the electroluminescent application.