Mathematical modeling of a photovoltaic-laser energy converter for iodine laser radiation
Space-based laser power systems will require converters to change laser radiation into electricity. Vertical junction photovoltaic converters are promising devices for this use. A promising laser for the laser power station is the t-C/sub 4/F/sub 9/I laser which emits radiation at a wavelength of 1.315 microns. This paper describes the results of mathematical modeling of a photovoltaic-laser energy converter for use with this laser. The material for this photovoltaic converter is Ga(53)In(47)As which has a bandgap energy of 0.94 eV, slightly below the energy of the laser photons (0.943 eV). Results of a study optimizing the converter parameters are presented. Calculated efficiency for a 1000 vertical junction converter is 42.5 percent at a power density of 1 x 10 to the 3d power w/sq cm.
- Research Organization:
- National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
- OSTI ID:
- 5839231
- Report Number(s):
- N-87-28178; NASA-TM-100482; NAS-1.15:100482
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
ARSENIC COMPOUNDS
ARSENIDES
CHEMICAL LASERS
CONVERSION
DIRECT ENERGY CONVERSION
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY CONVERSION
EQUIPMENT
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HALOGENS
INDIUM ARSENIDES
INDIUM COMPOUNDS
IODINE
LASER POWER TRANSMISSION
LASERS
MATHEMATICAL MODELS
NONMETALS
PHOTOVOLTAIC CONVERSION
PNICTIDES
POWER SUPPLIES
POWER TRANSMISSION
SPACECRAFT POWER SUPPLIES