Jihong Zheng, Liangxin Zhu, Zhitao Shen, Fumin Li, Lanyu Ling, Huilin Li, and Chong Chen, Effects of the incorporation amount of CdS and Cd(SCN2H4)2Cl2 on the performance of perovskite solar cells, Int. J. Miner. Metall. Mater.,(2021). https://doi.org/10.1007/s12613-021-2316-0
Cite this article as:
Jihong Zheng, Liangxin Zhu, Zhitao Shen, Fumin Li, Lanyu Ling, Huilin Li, and Chong Chen, Effects of the incorporation amount of CdS and Cd(SCN2H4)2Cl2 on the performance of perovskite solar cells, Int. J. Miner. Metall. Mater.,(2021). https://doi.org/10.1007/s12613-021-2316-0
Research Article

Effects of the incorporation amount of CdS and Cd(SCN2H4)2Cl2 on the performance of perovskite solar cells

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  • Received: 13 April 2021Revised: 10 June 2021Accepted: 11 June 2021Available online: 12 June 2021
  • An excellent organolead halide perovskite film plays an important role for good-performance perovskite solar cells (PSCs), while there are many defects at perovskite crystals, which is bad for both the photovoltaic properties and the stability of solar cells. Therefore, a strategy of incorporating a complex of CdS and Cd(SCN2H4)2Cl2 into CH3NH3PbI3 active layer is proposed to solve this problem. This study systematically analyzes the effect of different doping concentration of CdS and Cd(SCN2H4)2Cl2 on the performance and stability of PSCs. Our results find that an appropriate incorporation concentration of CdS and Cd(SCN2H4)2Cl2 doped in CH3NH3PbI3 can improve the performance of the prepared solar cells, which is mainly due to that the CdS and Cd(SCN2H4)2Cl2 can effectively passivate the defects at perovskite crystals, thereby suppressing the charge recombination in PSCs and promoting the charge extraction at TiO2/perovskite interface. Furthermore, the stability of PSCs is also significantly improved due to the reduced perovskite crystal defects and enhanced compactness of the C:C:CH3NH3PbI3 composite film. 

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