2. Articole
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Item Effect of heat treatment in presence of CdCl2on the physical properties of pCdTe/nCdS heterojunction solar cells [Articol](CEP USM, 2016) Al Qassem, AmjadThe article is a comprehensive study of the effect of heat treatment in presence of a cadmium chloride(CdCl2)onthe physical properties of pCdTe/nCdSsolar cells. Heat treatment process plays a key role in enhancing the pCdTe/nCdS hetero- structure photosensitivity, thus improving the performance of solar cells based o n them.This article outlines the changes in the structural characteristics and photoelectric properties of such solar cells before and after heat treatment process. The two most popular methods of the heat treatment process based on cadmium chloride are also discussed.One may consider the CdCl2 heat treatment process as one of the very important stages of preparing CdTe/CdO/CdS solar cells,which improves the performance of these cells made in laboratories of the State University of Moldova.Item A comparative analysis of silicon and cadmium telluride based solar cells [Articol](CEP USM, 2016) Al Qassem, AmjadA compartive analzsis of silicon solar cells and of those containing a CdTe thin film which are widely used in solar energetics, particullarilly, in photovoltaic modules fabrication, is brought in this paper. The silicon is largely used in solar cells fabrication due to the low cost of solar cells production related to the low cost of the semiconductor fabrication and to the advanced material processing technology, when at the same time cadmium telluride has the wide use due to the fact that its fundamental parameters can provide theoretically a high value of efficiency of solar energy conversion into electrical one of 30%. The structure and photoelectrical parameters of silicon solar cells and of those cotaining a thin cadmium telluride layer are considered.