相比于MAPbI3、FAPbI3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MAPbI3薄膜质量并将其作为PSC光活性层.采用溶剂法将Cs+掺杂到MAPbI3前驱体溶液中合成CsxMA1-xPbI3(z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Cs0.1MA0.9PbI3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 MAPbI3,FAPbI3,etc,organic-inorganic mixed cation PSCs have attracted wide attention due to their ex-cellent photoelectric properties and stability.The morphology control and energy level adjust-ment strategy were used to optimize the quality of MAPbI3 films and the films were used as pho-toactive layers for PSCs.CsxMA1-xPbI3 (x is 0-20％) organic-inorganic mixed cation perovs-kite photoactive materials were synthesized by doping Cs+ into MAPbI3 precursor solution with solvent method.The prepared Cs0.1MA0.9PbI3 photoactive films have the characteristics of com-pact 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.