摘要
相比于MAPbI_(3)、FAPbI_(3)等纯有机阳离子钙钛矿太阳电池(PSC),有机无机混合阳离子PSC因同时具有良好的光电性能和稳定性而广受关注。通过形貌控制和能级调节策略来优化MAPbI_(3)薄膜质量并将其作为PSC光活性层。采用溶剂法将Cs+掺杂到MAPbI_(3)前驱体溶液中合成CsxMA1-xPbI_(3)(x为0~20%)有机无机混合阳离子钙钛矿型光活性材料。由于制备的Cs_(0.1)MA_(0.9)PbI_(3)光活性薄膜具有表面形貌致密、容忍因子适当、能级结构匹配等特点,以此制备的PSC的能量转换效率最高为14.38%(标准差±1.21%),且电池具有良好的稳定性,在空气中放置30天电池能量转换效率衰减<12%。
Compared with pure organic cation perovskite solar cells(PSCs),such as MAPbI_(3),FAPbI_(3),etc,organic-inorganic mixed cation PSCs have attracted wide attention due to their excellent photoelectric properties and stability.The morphology control and energy level adjustment strategy were used to optimize the quality of MAPbI_(3)films and the films were used as photoactive layers for PSCs.CsxMA1-xPbI_(3)(xis 0-20%)organic-inorganic mixed cation perovskite photoactive materials were synthesized by doping Cs+into MAPbI_(3)precursor solution with solvent method.The prepared Cs_(0.1)MA_(0.9)PbI_(3)photoactive films have the characteristics of compact surface morphology,appropriate tolerance factor and matching energy level structure,thus the highest power conversion efficiency of the prepared PSCs is 14.38%(the standard deviation of±1.21%).Moreover,the cell has good stability and the power conversion efficiency of the cell decreases less than 12%after being placed in air for 30 days.
作者
朱磊
顾修全
Zhu Lei;Gu Xiuquan(Adranced Analysis&Com putation Center,China University of Mining and Technology,Xuzhou 221116,China;Schoo of Materials and Physics,China University of Mining and Technology,Xuzhou 221116,China)
出处
《微纳电子技术》
CAS
北大核心
2021年第10期895-902,919,共9页
Micronanoelectronic Technology
基金
Teaching Reform Project of China University of Mining and Technology(2020YB61)。
