Use of a corrugated surface to enhance radiation tolerance in a GaAs solar cellThe use of a corrugated surface on a GaAs solar cell and its effects on radiation resistance were studied. A compute code was developed to determine the performance of the cell for various geometric parameters. The large optical absorption coefficient of GaAs allows grooves to be only 4-5 micrometers deep. Using accepted material parameters for GaAs solar cells the theoretical performances were compared for various corrugated cells before and after minority carrier diffusion length degradation. The total power output was maximized for both n(+)/p and p(+)/n cells. Optimum values of 1.0-1.5 and 5.0 micrometers for groove and ridge widths respectively were determined.
Document ID
19870032568
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Leon, Rosa P. (NASA Lewis Research Center Cleveland, OH, United States)
Piszczor, Michael F., Jr. (NASA Lewis Research Center Cleveland, OH, United States)