On the Stability of the Optical Properties of an Antireflection Coating for Solar Cells Based on a Mixture of Germanium with Germanium Oxide
В. Г. ДыскинInstitute of Materials Science SPA Physics–Sun, Uzbek Academy of Sciences, 100084, Tashkent, UzbekistanM. U. DzhanklychInstitute of Materials Science SPA Physics–Sun, Uzbek Academy of Sciences, 100084, Tashkent, Uzbekistan
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The paper presents the results of measurements of coating reflection coefficients. These coatings are based on a mixture of germanium with germanium oxide deposited on a silicon surface. The volume concentration of Ge in GeO2 is 20 and 30%. The spectral reflection coefficient of the coating with a volume concentration of 20% has not changed for 11 years. The reflection coefficient of the coating with a concentration of 30% in the range of 400–600 nm has decreased by an average of 5%. The antireflective effect of both coatings is preserved. The coating based on a mixture of germanium and germanium oxide with a volume concentration of 20% is stable and can be recommended as an antireflection coating for solar cells.
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