INFLUENCE OF SUBSTRATE TYPE ON STRUCTURAL-OPTICAL PROPERTIES OF CdTe1-хSeх SOLID SOLUTIONS

Abstract

Today dictates the fashion for determining strategic goals and directions for effective implementation of innovative directions and technologies. The technogenic burden of the territory, significant moral and physical wear and tear of the main production energy complexes of most enterprises and the exhaustion of the state's natural resources contribute to the development of alternative ecological clean energy. A prominent place in the cohort of renewable energy sources belongs to solar batteries, which have high and stable values of efficiency during operation and at the same time are an environmentally friendly and financially profitable product. At the same time, it is important to choose the method and conditions of obtaining the material for the converters of solar energy into electricity. Of particular interest are solar cells (SE) based on AIIBVI compounds, manufactured by thin-film technology.

This study presents the results of investigations into the structural and optical properties of solid solutions of CdTe1-xSex on silicon and ITO/glass substrates. The methodology for synthesizing multilayer thin-film structures using the high-frequency magnetron sputtering method is provided. Phase analysis and refinement of the crystal structure are performed based on X-ray diffraction data. The morphology and structure of the obtained solid solutions are examined using scanning electron microscopy. The spectral dependence of optical transmittance for the samples is investigated in the visible range at room temperature. For CdTe1-xSex solid solutions on ITO/glass substrates, the optical bandgap is determined to be 1.62 eV. The reflectance coefficients for the films on various substrates are also assessed.