FABRICATION AND CHARACTERIZATION OF HIGH EFFICIENTCd O/SI PHOTOVOLTAIC SOLAR CELLS

Abstract

In the present work, CdO/Si heterojunction solar cell has been made by vacuum evaporation of CdO thin film onto monocrystalline silicon substrate. XRD was investigated, the transmission was determined in range (400-1000)nm and the direct band gap energy is 2.5 eV, I-V characterization of the cell under illumination was investigated , the cell shows an open circuit voltage (VOC) of 0.4 V, a short circuit current density (JSC) of 40 mA/cm2, a fill factor (FF) of 0.34, and a conversion efficiency (η) of 5.5%.