Abstract
This study presents the experimental and a solar performance of Cu2SnS3 copper-tin sulphide films (CTS). The CTS films were synthesised by a spray pyrolysis method as show the abstract figure and it was deposited on ordinary glass substrates via a very promising non-toxic solution spray pyrolysis process. Pulverisation times of 15, 30 and 45 min were used to study the effect of spraying time on the crystal structure and opto-electronic properties of Cu2SnS3 films. The morphology, composition and opto-electronic properties were investigated using X-ray diffractometer, Raman spectroscopy, EDS, SEM, UV–visible spectrophotometer and a four-point probe technique. In this work, a high quality of Cu2SnS3 films with tetragonal dominant phase and morphological homogeneity are obtained at 30 and 45 min of spraying solution with appropriate optoelectrical properties for solar PV applications. Based on the experimental optical response of the CTS-45min samples, we have carried out a numerical simulation of the photovoltaic solar cell using Cu2SnS3 as an absorbing layer. The simulated solar cell demonstrated a power conversion efficiency PCE of 20.34% with voltage open circuit Voc, short-circuit density Jsc and fill factor FF of 1.09 V, 24.60 mA/cm2 and 75.23%, respectively, corresponding to the SLG/Mo/Cu2SnS3/ZnS/ITO/Al solar cell configuration, with the ITO is the In-doped SnO2 material.
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