Effect of He-Ne laser on Solar Cell

Abstract

The study the effect of laser light of helium-neon (He – Ne) on the electric characteristics and the performance of Si - solar cell. A He – Ne laser light of (λ = 632.8 nm) wavelength and (1.5mW) power has been used to irradiate the solar cells by continuous wave mode (cw) at different periods of time of irradiation. Measurements of I–V at experimental solar radiation intensity of (0.055W/cm2) have been made at room temperature. In these measurements the short circuit current (Isc), the open circuit voltage (Voc), and the fill factor (FF) have been studied, and then the efficiency of the solar cell has been found. The results have shown that the solar cells irradiation by the continuous laser light led to inconsistent increase in the values of cell performance parameters, i.e. The increase in the cell efficiency as the time of irradiation increases.