Improving the Efficiency of Silicon Solar Cells Using Photo- Luminescent Solar Concentrators Based on Plant Dyes Solutions Doped with Nanoparticles

Abstract

In this research, natural dyes were used as luminous solar concentrates to improve the
efficiency of solar cells. In this study, natural dyes (kujrat , saffron and raisins) were used
after dissolving them in pure water as a solvent because it does not affect the properties of
the dyes by (0.001, 0.002, 0.003) grams per 100 ml of pure water. After dissolving the
dyes in water and preparing the concentrations used in the research, zinc oxide
nanomaterials were added, and the absorbance and fluorescence were calculated for each
concentration, The optical properties were studied over a wavelength range (200-800) nm.
The results showed that increasing the concentration of the dyes leads to an increase in
the intensity of the absorbance and a decrease in the fluorescence, but when adding the
nanomaterials zinc oxide, the absorbance increases and the fluorescence decreases with
an increase in the concentration of the dyes. and the solar concentrator efficiency was
calculated for each concentration highest efficiency of a solar cell using Kujrat dye was (
η=1.670%) . Calculation of cell efficiency without dye( η=0879%) .