A comparative study of ZrS2 based thin film solar cells using solar cell capacitor simulator


 Transition metal chalcogenides(TMC) have been studied for their potential applications in optoelectronic devices such as light emitting diodes, solar cells, photodetectors, field effect transistors etc. Their unique structural, versatile electronic and optical properties, non-toxic chemical nature and abundance are some of the properties that have attracted tremendous attention of researchers. In this study, optimized junctions formed between zirconium sulphide(ZrS2) and Copper zinc tin sulphide(CZTS), Cupper indium sulphide(CIS), Cupper indium selenide(CISe) and Cadmium telluride(CdTe) absorber layers have been explored and compared using the Solar Cell Capacitor Simulator(SCAPS) for photovoltaic applications. The impact of operating temperature, illumination intensity, series and shunt resistances on cell performance has been discussed in details. Comparative study concluded that the Al-ZnO/ZrS2/CZTS structure presents the best efficiency of 9.72% at room temperature. Other performance parameters obtained are 25.16mA/cm2(Jsc), 0.61(Voc) and 68.86%(FF). External quantum efficiency(EQE) response has also been examined under AM1.5 spectrum for different device model. The simulation results suggest that n-ZrS2 can be used as an excellent buffer layer to fabricate environmental friendly and non-toxic solar cells.