CuSCN Modified Back Contacts for High Performance CZTSSe Solar Cells

Yixiong Ji; Xiangyun Zhao; Yining PanZhenghua SuJinhong LinEser Metin AkinogluYang XuHeyou ZhangPengjun ZhaoYue DongXingzhan WeiFangyang LiuPaul Mulvaney

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CuSCN Modified Back Contacts for High Performance CZTSSe Solar Cells

机译：CuSCN Modified Back Contacts for High Performance CZTSSe Solar Cells

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Optimization of the back contact interface is crucial for improving theperformance of Cu_2ZnSnS_4 (CZTS) thin film solar cells. In this paper, selfdepletedCuSCN is deployed as an intermediate layer at the Mo/CZTS interfaceto improve the quality of the back contact. This CuSCN layer, obtainedvia aqueous solution processing, reduces the thickness of Mo(S,Se)_2 andeliminates multi-layer crystallization of the absorber by suppressing theundesirable reaction between Mo and Se during the selenization process. Byregulating the selenium infiltration into the CZTS precursor films during theselenization process, highly crystalline, single-layer Cu_2ZnSn(S,Se)_4 (CZTSSe)absorber layers are realized. The single-layer CZTSSe absorber exhibitsreduced carrier recombination, enhanced carrier density and increased workfunction. The improved back contact and absorber layer enables 11.1% powerconversion-efficiency to be achieved.

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《Advanced functional materials》 |2023年第11期|2211421.1-2211421.7|共7页
作者
Yixiong Ji; Xiangyun Zhao; Yining PanZhenghua SuJinhong LinEser Metin AkinogluYang XuHeyou ZhangPengjun ZhaoYue DongXingzhan WeiFangyang LiuPaul Mulvaney;
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Shenzhen Key Laboratory of Advanced Thin Films and ApplicationsCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060, China;

International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityZhaoqing, Guangdong 526238, China;

ARC Centre of Excellence in Exciton ScienceSchool of ChemistryUniversity of MelbourneVictoria 3010, AustraliaXinjiang Technical Institute of Physics and ChemistryChinese Academy of SciencesUrumqi 830011, ChinaLeibniz-Institut für Polymerforschung Dresden e.V. Institute of PhysicalChemistry and Polymer Physics01069 Dresden, GermanyChongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing 400714, ChinaSchool of Metallurgy and EnvironmentCentral South UniversityChangsha 410083, ChinaARC Centre of Excellence in Exciton ScienceSchool of ChemistryUniversity of MelbourneVictoria 3010, Australia School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083, China;

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正文语种英语
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CuSCN; CZTS; back contacts; photovoltaic solar cells;

CuSCN Modified Back Contacts for High Performance CZTSSe Solar Cells

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