Stably doped graphene transparent electrode with improved lightextraction for efficient flexible organic light-emitting diodes  

作　　者：Lai-Peng Ma Zhongbin Wu Yukun Yan Dingdong Zhang Shichao Dong Jinhong Du Dongge Ma Hui-Ming Cheng Wencai Ren 

机构地区：[1]Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [2]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China [3]Frontiers Science Center for Flexible Electronics,Institute of Flexible Electronics(IFE),Northwestern Polytechnical University,Xi’an 710072,China [4]State Key Laboratory of Luminescent Materials&Devices,South China University of Technology,Guangzhou 510640,China [5]Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

出　　处：《Nano Research》2023年第11期12788-12793,共6页纳米研究（英文版）

基　　金：supported by the National Science Foundation of China(Nos.52272051,52172057,52188101 and 52002375);Ministry of Science and Technology of China(No.2021YFA1200804);Chinese Academy of Sciences(Nos.ZDBSLYJSC027 and XDB30000000);Postdoctoral Science Foundation of China(Nos.2020M670812 and 2020TQ0328);Liaoning Revitalization Talents Program(No.XLYC1808013);Guangdong Basic and Applied Basic Research Foundation(No.2020B0301030002).

摘　　要：Graphene-based flexible transparent electrodes(FTEs)are promising candidate materials for developing next-generation flexible organic light-emitting diodes(OLEDs).However,the quest for high-efficiency OLEDs is hindered by the low light-extraction and charge injection efficiencies of graphene electrode.Here,we combine the frustrated Lewis pair doping with nanostructure engineering to obtain high-performance graphene FTE.A p-type dopant aci-nitromethane-tris(pentafluorophenyl)borane(ANBCF)was synthesized and deposited on graphene FTE to form an aperiodic nanostructure,which not only improves the light-extraction but also stably p-dopes graphene to enhance its hole injection.The use of ANBCF-doped graphene as the anode enables high-efficiency flexible green OLEDs with external quantum efficiency(EQE)and power efficiency(PE)out-performing most flexible graphene OLEDs of comparable structure.This study provides a simple and effective pathway to fabricate high-performance graphene FTEs for efficient flexible OLEDs.

关 键 词：GRAPHENE transparent electrode flexible organic light-emitting diode(OLED) DOPING light-extraction 

分 类 号：TN31[电子电信—物理电子学]