Ultrafast-laser-treated poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)electrodes with enhanced conductivity and transparency for semitransparent perovskite solar cells  

作　　者：Yongshun Wang Yuxi Dou Zhengzhe Wu Yingxin Tian Yiming Xiong Juan Zhao De Fang Fuzhi Huang Yi-Bing Cheng Jie Zhong 

机构地区：[1]State Key Laboratory of Advanced Technology of Materials Composite Technology,Wuhan University of Technology,Wuhan 430070,China [2]Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory,Foshan 528216,China [3]School of Automobile Engineering,Wuhan University of Technology,Wuhan 430070,China [4]Center for Materials Research and Analysis,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Frontiers of Chemical Science and Engineering》2023年第2期206-216,共11页化学科学与工程前沿（英文版）

基　　金：the National Key Research and Development Plan(Grant Nos.2017YFE0131900,2019YFE0107200);the National Natural Science Foundation of China(Grant Nos.52072284,21875178,91963209);Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory(XHD2020-001).

摘　　要：Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)is an important organic electrode for solution-processed low-cost electronic devices.However,it requires doping and post-solvent treatment to improve its conductivity,and the chemicals used for such treatments may affect the device fabrication process.In this study,we developed a novel route for exploiting ultrafast lasers(femtosecond and picosecond laser)to simultaneously enhance the conductivity and transparency of PEDOT:PSS films and fabricate patterned solution-processed electrodes for electronic devices.The conductivity of the PEDOT:PSS film was improved by three orders of magnitude(from 3.1 to 1024 S·cm^(–1)),and high transparency of up to 88.5%(average visible transmittance,AVT)was achieved.Raman and depthprofiling X-ray photoelectron spectroscopy revealed that the oxidation level of PEDOT was enhanced,thereby increasing the carrier concentration.The surface PSS content also decreased,which is beneficial to the carrier mobility,resulting in significantly enhanced electrical conductivity.Further,we fabricated semitransparent perovskite solar cells using the as-made PEDOT:PSS as the transparent top electrodes,and a power conversion efficiency of 7.39%was achieved with 22.63%AVT.Thus,the proposed route for synthesizing conductive and transparent electrodes is promising for vacuum and doping-free electronics.

关 键 词：PEDOT:PSS ultrafast laser transparent electrode ST-PSCs PATTERNING 

分 类 号：TM914.4[电气工程—电力电子与电力传动]