Accession Number:

AD0251930

Title:

RESEARCH ON EFFICIENT PHOTOVOLTAIC SOLAR ENERGY CONVERTERS

Descriptive Note:

Corporate Author:

TRANS WORLD AIRLINES INC KANSAS CITY MO

Personal Author(s):

Report Date:

1960-06-23

Pagination or Media Count:

1.0

Abstract:

The performance of a variable energy gap solar cell is compared with that of a single gap cell. No major advantage is offered by the variable gap cell, although small improvements could be obtained provided that the lifetimes could be maintained comparable with those in the single gap cell. Two methods of reducing the reflection loss from the surface of a solar cell are described. It was conclud d that the P region should be made as thin as series resistance and fabrication techniques permit. The requirements for an efficient solar cell are summarized. The effect of radiation on the response curve of a solar cell is discussed. Experimental results obtained on a number of units are given. Silicon and gallium arsenide cells should eventually have similar efficiency, but gallium arsenide has the advantage of lower temperature dependence. Finally the un-conventional approaches to solar cell fabrication are reviewed. The most promising system appears to be the use of two cells matched to different parts of the suns spectrum in conjunction with a dichroic mirror to direct the appropriate part of the spectrum to each cell. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE