using the compound GeSe2-x Cdx as Layer in solar cell and study the properties of this solar cell

Abstract

This work presents the method of preparation and properties of thin films of p- GeSe_2-x Cd_x on a n-Ge substrate where: x = (0.3-0.7). thickness of . the structural, and optical properties of these samples were studied in previous papers.  

The optical reflectance  spectra had been recorded and observed that the prepared films have a reflectivity about 28.56% for sample x=0.7  and  24.77% for sample x=0.3 in the visible regions, so these films have a good absorption and the band gap energy values are also in the range  where these can be easily utilized for maximum output conversion efficiency.                     

The Characteristic ( I -V) of prepared solar cells is studied by using probes of thin copper wire and silver paste. the result showed that the efficiency of solar cell GeSe_1.7 Cd_0.3 is   6.92% ,  fill factor FF=0.69, and the cell GeSe_1.3Cd_0.7 is 4.37% and FF= 0.82.