Accession Number : AD0822426

Title :   DENDRITIC SILICON SOLAR CELL OPTIMIZATION AND FABRICATION.

Descriptive Note : Final rept. 2 Aug 65-14 Apr 67,

Corporate Author : WESTINGHOUSE ELECTRIC CORP YOUNGWOOD PA SEMICONDUCTOR DIV

Personal Author(s) : Merritts, T. D. ; Ernick, N. ; Ichikawa, Y.

Report Date : OCT 1967

Pagination or Media Count : 42

Abstract : This report describes the research and development work to optimize and fabricate dendritic silicon solar cells in the areas related to weight reduction, physical and electrical characteristics, and radiation resistance. A total of 970 diffused standard cells and 901 epitaxial drift field cells of 1 by 30.5 cm size were fabricated. The efficiency range of the standard cells was 9.0 to 13.3 percent with a mean of 10.5 percent, and the range of the drift field cells was 9.0 to 12.7 percent with a mean of 10.6 percent. The cell efficiencies are based on tungsten 100 mw/sq cm. Physical and electrical properties based on typical cell characteristics related to illumination intensity, spectral response, temperature, and radiation resistance are given. Process specifications for cell fabrication are included. Integral quartz coatings of at least .001 inch thickness were evaluated and are discussed briefly.

Descriptors :   *SILICON), (*SOLAR CELLS, (*DENDRITIC STRUCTURE, SOLAR CELLS), WEIGHT, REDUCTION, TUNGSTEN, SPECIFICATIONS, THICKNESS, INTENSITY, TEMPERATURE, DIFFUSION, EPITAXIAL GROWTH, SUBSTRATES, DAMAGE, RADIATION EFFECTS, SPECTROPHOTOMETERS, SPUTTERING, OPTIMIZATION, COATINGS, QUARTZ, SILVER COMPOUNDS, TITANIUM.

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE