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JOURNAL OF SYNTHETIC CRYSTALS ›› 2023, Vol. 52 ›› Issue (11): 2076-2084.

• Research Articles • Previous Articles    

Optimization and Numerical Simulation of Sn-Based CH3NH3SnI3 Perovskite Solar Cell

WANG Chuankun, LU Chengwei, OUYANG Yujie, ZHANG Shengjun, HAO Yanling   

  1. School of Physics and Engineering Technology, Minzu Normal University of Xingyi, Xingyi 562400, China
  • Received:2023-05-11 Online:2023-11-15 Published:2023-11-17

Abstract: With non-toxic nature, wide bandgap, and thermal stability, Sn-based perovskite materials have become a hot topic in the field of perovskite solar cell research. In this paper, the SCAPS-1D software was used to construct the FTO/TiO2/CH3NH3SnI3/Spiro-OMeTAD/Ag perovskite solar cells and the performances of the constructed cells were calculated. The effects of the thickness of absorption and hole buffer layer, the surface defects between hole buffer layer and absorption layer, and the operating temperature on the device performance were studied, then the device performance was optimized. The photoelectric conversion efficiency of the optimized perovskite solar cell is 30.955%. The theoretical analysis suggests a new approach for enhancing the photoelectric conversion efficiency of perovskite solar cells.

Key words: perovskite solar cell, absorption layer, interfacial defect density, photoelectric conversion efficiency, numerical simulation, CH3NH3SnI3

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