FABRICATION OF PHOTOELECTRIC CONVERTERS BASED ON CU2-XTE-CDTE HETEROSECONDS AND STUDY OF THEIR PHOTOELECTRIC CHARACTERISTICS.
Abstract
A technology for producing low-resistance thin films of A2B6 compounds by thermal vacuum condensation in a quasi-closed volume has been developed. Solar photoconvertersof the Cu2-xTe-CdTe type were obtained by chemical deposition in an aqueous CuCl solution. The effects of acidity (pH) and temperature of the solution on the output parameters of the elements are investigated. A machine program for calculating such basic parameters of a heterojunction (GP) as Yn, Yn, I0, and n is presented. Based on the study of light and dark I-V characteristics, its temperature dependence, and the I-V characteristics, the nature of the impurity distribution is established, the GP parameters are determined, and the mechanisms of current transmission are revealed. The dependence of the short-circuit current on the wavelength of incident quanta is analyzed. The mechanism of the photovoltaic effect inthe Cu2-Te-CdTe structure is established.
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