As perovskite solar cell (PSC) technology is about to be commercialized, the use of toxic and organic material is still a problem. At the same time, CsSnI₃ has received widespread attention because of its narrow bandgap and non-toxicity. In this study, we use the wxAMPS tool to investigate the limitations of Sn-based all-inorganic PSCs, using CsSnI₃ perovskite as the absorption layer and Au as the back electrode to create non-toxic all-inorganic PSCs. CsSnI₃ is a narrow-band material; the absorption range can be extended to the near-infrared spectral region, and it has a very high hole mobility. Therefore, this article first compares several potential inorganic electron and hole transport layers (ETLs and HTLs), and the results show that C₆₀ ETL and MoOx HTL are the most suitable materials. Moreover, the device performance is further improved by optimizing the absorber thickness as well as the doping density. Under optimized conditions, a conversion efficiency of 19.25% is obtained for the FTO/C₆₀/CsSnI₃/MoOx/Au PSCs, indicating that there is much room for further performance enhancement. The photovoltaic performance parameters achieve their optimum value at an absorber thickness is better among the range of 100–1300 nm and doping density of 10¹⁹ cm⁻³. This shows that the proposed non-toxic all-inorganic PSCs have broad prospects in future photovoltaic and optoelectronics applications, and provide theoretical guidance for the manufacture of a non-toxic and inorganic PSCs.

随着钙钛矿太阳能电池（PSC）技术即将商业化，有毒和有机材料的使用仍然是一个问题。同时，CsSnI ₃因其窄带隙和无毒而受到广泛关注。在本研究中，我们使用 wxAMPS 工具来研究基于 Sn 的全无机 PSC 的局限性，使用 CsSnI ₃钙钛矿作为吸收层，使用 Au 作为背电极来创建无毒的全无机 PSC。CsSnI ₃是一种窄带材料；吸收范围可以扩展到近红外光谱区，并且具有非常高的空穴迁移率。因此，本文首先比较了几种潜在的无机电子和空穴传输层（ETLs和HTLs），结果表明C ₆₀ETL 和 MoOx HTL 是最合适的材料。此外，通过优化吸收体厚度和掺杂密度，进一步提高了器件性能。在优化条件下，FTO/C ₆₀ /CsSnI ₃ /MoOx/Au PSCs的转换效率为 19.25% ，表明性能还有很大的提升空间。当吸收体厚度在 100-1300 nm 范围内和掺杂密度为 10 ¹⁹ cm ^{-3 时}，光伏性能参数达到最佳值. 这表明所提出的无毒全无机PSCs在未来光伏和光电子应用中具有广阔的前景，并为制备无毒无机PSCs提供理论指导。