Fabrication and Characterization of Zinc Selenide (ZnSe) Thin Film in Solar Cell Applications

Abstract

Characterization of Zinc Selenide (ZnSe) thin film has been numerically performed using Essential Macleod Program and is found promising in applications of thin film solar cells. It is observed that at a certain wavelength and film thickness ZnSe possesses relatively high transmittance and low reflectance. Following this ZnSe thin film was fabricated by Chemical Bath Deposition (CBD) technique and then physically observed by X-ray diffractometer (XRD) and Scanning Electron Microscope (SEM). Energy bandgap of ZnSe was experimentally found at approximately 2.63 eV. We demonstrate ZnSe film can be used as a window layer in thin film solar cell to transmit maximum amount of light energy resulting in more photo generated current.