Enhanced charge collection of AgNWs-based top electrode to realize high-performance,all-solution processed organic solar cells  

作　　者：Juanyong Wan Yang Chen Weijie Chen Jinfeng Xia Guang Zeng Jianlei Cao Chuang Jin Yunxiu Shen Xiaoxiao Wu Haiyang Chen Junyuan Ding Xue-mei Ou Yaowen Li Yongfang Li 

机构地区：[1]Laboratory of Advanced Optoelectronic Materials,Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China [2]Jiangsu Key Laboratory of Advanced Negative Carbon Technologies,Soochow University,Suzhou 215123,China [3]State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials,Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China [4]Beijing National Laboratory for Molecular Sciences,CAS Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China [5]Jiangsu Sidike New Materials Science and Technology Co.,Ltd.,Suqian 215400,China

出　　处：《Science China Chemistry》2024年第10期3347-3356,共10页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China(52325307,52273188,22075194,52203233);the National Key Research and Development Program of China(2022YFB4200302);the Department of Science and Technology of Jiangsu Province(BE2022023);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),the Collaborative Innovation Center of Suzhou Nano Science and Technology,Jiangsu Funding Program for Excellent Postdoctoral Talent(2022ZB567);the China Postdoctoral Science Foundation(2023M732533);the Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function,Soochow University。

摘　　要：All-solution processed organic solar cells are the ultimate aim of printable photovoltaics,but their electrical losses arising from poor contact of top electrodes greatly limit efficiency improvement.To solve the problem,a solution-processed hybrid top electrode was constructed using silver nanowires(AgNWs)as the skeleton and ZnO nanoparticles(ZnO-NPs)as the matrix.When constructing the skeleton,a spin-rinsing treatment was first used to reduce the amount of the residual insulating polyvinylpyrrolidone wrapped around the AgNWs to promote intimate contact among the AgNWs in the skeleton.Then,the ZnO-NPs matrix was deposited onto the AgNWs skeleton,bridging the AgNWs skeleton with the underlayer ZnO-NPs electron transporting layer(ETL).The underlayer ZnO-NPs ETL can also induce the growth of the ZnO-NPs matrix to minimize lattice mismatch,which creates additional transport channels from the ETL to the AgNWs skeleton for charge collection.As a result,the obtained electrode significantly enhances the electrical contact in the device,thus delivering record power conversion efficiencies of 16.04%and 14.54%for rigid and flexible all-solution processed OSCs,respectively.

关 键 词：solution-processed top electrode organic solar cells AgNWs electrical contact 

分 类 号：TB34[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]