Simulation of novel CFTS solar cells with SCAPS-1D software
摘要
Thin film solar cells have been extensively explored because of their low cost, good low light, and high efficiencies. In this contribution, the novel Cu(Fe, Sn)S4 (CFTS) thin film solar cell was investigated via the simulated software SCAPS. Meanwhile, the Fe content, carrier concentration, and working temperature of the absorber layer were compared. It is demonstrated that the best efficiency (12.6455 %) of solar cells was achieved at the [Fe]/([Fe] + [Sn]) ratio of about 0.45 owning to the optimized transport of carriers at CFTS/CdS heterojunction. Simultaneously, the conduction band minimum position of CFTS is the same as that of the buffer layer along with the Fe content of about 0.29. By varying the carrier concentration and working temperature, the highest efficiency of CFTS solar reached 24.8663 %, which provides theoretical guidance for the fabrication of CFTS thin film solar cells.