Aqueous Sn-S Complex Derived Electron Selective Layer for Perovskite Solar Cells
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2020年第2期
论文作者：李智 沈文剑 赵娟 YING Hangkai WU Zhengli LIU Yifan 李望南 KU Zhiliang PENG Yong HUANG Fuzhi CHENG Yibing ZHONG Jie FU Zhengyi
文章页码：272 - 279
摘 要：A novel aqueous Sn-S complex solution was applied as precursor to fabricate SnO2 electron selective layers （ESLs） for the hybrid perovskite solar cells （PSCs）.The tin and sulfur powder were directly dissolved in a （NH4）2S water solution to form Sn-S precursor.After depositon and annealing,the SnO2 film was formed,presenting as a low cost and enviromental friendly method for preparation of ESL.The films showed excellent transmittance at visible wavelength range.Moreover,the method exhibited high compatibility for doping using Cu,Cd,Li,and Zn elements.Zn doping （0.05 M） in the as-prepared SnO2 ESL significantly improved perovskite solar cells （PSCs） performance.The highest PCE of 13.17% was achived with 15% enhancement compared to that of undoped SnO2 ESL samples.TiCl4 modifications on SnO2 film improved photovoltaic performance to 14.45%,but resulted in the poor long-term stability,around 80% more degredation than that of PSCs based on Zn-doped SnO2 films.
李智1，沈文剑1，赵娟2，YING Hangkai1，WU Zhengli1，LIU Yifan1，李望南3，KU Zhiliang1，PENG Yong1，HUANG Fuzhi1，CHENG Yibing1，ZHONG Jie1，FU Zhengyi1
1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering,Wuhan University of Technology2. Hubei Research Center for New Energy & Intelligent Connected Vehicle, Wuhan University of Technology3. Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science
摘 要：A novel aqueous Sn-S complex solution was applied as precursor to fabricate SnO2 electron selective layers （ESLs） for the hybrid perovskite solar cells （PSCs）.The tin and sulfur powder were directly dissolved in a （NH4）2S water solution to form Sn-S precursor.After depositon and annealing,the SnO2 film was formed,presenting as a low cost and enviromental friendly method for preparation of ESL.The films showed excellent transmittance at visible wavelength range.Moreover,the method exhibited high compatibility for doping using Cu,Cd,Li,and Zn elements.Zn doping （0.05 M） in the as-prepared SnO2 ESL significantly improved perovskite solar cells （PSCs） performance.The highest PCE of 13.17% was achived with 15% enhancement compared to that of undoped SnO2 ESL samples.TiCl4 modifications on SnO2 film improved photovoltaic performance to 14.45%,but resulted in the poor long-term stability,around 80% more degredation than that of PSCs based on Zn-doped SnO2 films.
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