In Sb₂S₃ solar cells, the p-n junction are generally formed by combination of p-type Sb₂S₃ absorber layer and n-type materials, such as CdS and TiO₂. In this study, the design and simulation of the Sb₂S₃ solar cells with graphene as electron transport layer were performed. The device performance parameters with respect to the electron affinity of monolayer graphene, the doping concentration, thickness and bulk defect density of Sb₂S₃ layer were examined and optimized. The simulation results revealed that the performance of Sb₂S₃ solar cells could be improved by using a monolayer graphene with lower value of electron affinity. The optimum doping concentration of Sb₂S₃ absorber layer was found to be 10¹⁷ cm⁻³. Also, the optimum Sb₂S₃ absorber layer thickness was found to be 0.7 μm when the bulk defect density and the corresponding carrier diffusion length were 10¹⁵ cm⁻³ and 1.6 μm, respectively. According to the optimum values of different variables, the conversion efficiency of the Sb₂S₃ solar cells could be achieved as high as 23.30%. These results showed that the monolayer graphene could be served as an efficient and inexpensive electron transport layer.

在Sb ₂ S ₃太阳能电池中，pn结通常由p型Sb ₂ S ₃吸收剂层和n型材料如CdS和TiO _{2组合形成}。在这项研究中，进行了以石墨烯为电子传输层的Sb ₂ S ₃太阳能电池的设计和仿真。针对单层石墨烯的电子亲和力，Sb ₂ S ₃层的掺杂浓度，厚度和体缺陷密度，对器件性能参数进行了检查和优化。仿真结果表明，Sb ₂ S ₃的性能通过使用具有较低电子亲和力的单层石墨烯可以改善太阳能电池。发现Sb ₂ S ₃吸收层的最佳掺杂浓度为10 ¹⁷  cm ^-3。另外，当体缺陷密度和相应的载流子扩散长度分别为10 ¹⁵ cm ^-3和1.6μm时，发现最佳的Sb ₂ S ₃吸收体层厚度为0.7μm。根据不同变量的最佳值，Sb ₂ S ₃的转化效率 太阳能电池可以达到高达23.30％。这些结果表明，单层石墨烯可以用作有效且廉价的电子传输层。