Accession Number : AD0836612

Title :   IMPROVED CDTE SOLAR CELL AND ARRAY ENVIRONMENTAL EFFECTS INVESTIGATION.

Descriptive Note : Quarterly technical rept. no. 5, 1 Mar-31 May 68,

Corporate Author : GENERAL ELECTRIC CO LYNCHBURG VA POLYCRYSTALLINE SEMICONDUCTOR PRODUCTS BUSIN ESS SECTION

Personal Author(s) : Schlotterbeck, Richard S.

Report Date : 31 MAY 1968

Pagination or Media Count : 106

Abstract : Work on the basic physics and chemistry of the Cu2Te-CdTe system as well as means for defining the proper measuring and evaluation procedures of actual cells are presented in detail. Significant contributions towards improvement in understanding the more fundamental aspects of the CdTe solar cell were made in the following areas: use of optical microscopic techniques in ascertaining the 'metallography' of thin film cells; electron diffraction studies, maintenance tests, and diffusion and solubility measurements of copper in CdTe; and, solar cell spectral response measurements. Extensive studies have also been made on the effects on film and solar cell characteristics of three major variables in the film growth process: continual CuCl feed; effect on net donor concentration of CuCl feed rate; and, effect on net donor concentrations of variations in pumping speed. The combined effects of the CuCl powder flow rate and the measured reactor pressures have established an empirical relationship between those variables and the net impurity density (Nd-Na). A number of cell characteristics have been successfully correlated with (Nd-Na), and the correlation qualitatively accounted for by a proposed theoretical device model. (Author)

Descriptors :   (*SOLAR CELLS, MANUFACTURING), CADMIUM COMPOUNDS, TELLURIDES, ENVIRONMENTAL TESTS, EFFICIENCY, STABILITY, TEST METHODS, MATHEMATICAL MODELS, CORRELATION TECHNIQUES, METALLOGRAPHY, SPACE SIMULATION CHAMBERS.

Subject Categories : Electric Power Production and Distribution
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE