Development and Characterization for Solar Photovoltaic Cell Based on Cu2ZnSn(S0.2Se0.8)4 Thin Film

CZTSSe materials have been studied for a highly efficient solar cell. In this paper, Cu 2 ZnSn(S 0.2 Se 0.8 ) 4 (CZTSSe) thin film was prepared and its application to photovoltaic solar cells was studied. The CZTSSe thin film was deposited using facile thermal evaporation process and examined by various techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), atomic force microscopy (AFM), Raman-scattering and Fourier transform infrared (FTIR) spectroscopy. Interestingly, the synthesized CZTSSe thin are exhibiting broad-spectrum absorption. The I – V characteristics were performed to study the photoresponse of CZTSSe nanofilm. By the numerical simulation, the observed maximum efficiency of the fabricated device was ∼16.5%. Therefore, the present study reveals that Cu 2 ZnSn(S 0.2 Se 0.8 ) 4 thin films could be used as an effective absorber layer for efficient solar cells applications.