Computer simulations of the proton irradiated (AlGa)As-GaAs solar cells
An improved numerical model for computing the displacement defect density, the damage constants for the minority-carrier diffusion lengths and the degradations of the short-circuit current I/sub sc/, open-circuit voltage V/sub oc/, and the conversion efficiency eta/sub c/ in a proton irradiated (AlGa)As-GaAs solar cell is presented in this paper. The model assumed that the radiation-induced displacement defects form effective recombination centers which reduces the minority-carrier diffusion length and hence degrades the I/sub sc/, V/sub oc/, and eta/sub c/ of the solar cell. Excellent agreement was obtained between our calculated values and the measured I/sub sc/, V/sub oc/, and eta/sub c/ in the proton irradiated GaAs solar cells for proton energies varying from 100 keV to 10 MeV and fluences from 10/sup 10/ to 10/sup 12/ cm/sup -2/ under normal incidence condition.
- Research Organization:
- Department of Electrical Engineering, University of Florida, Gainesville, Florida 32611
- OSTI ID:
- 6088397
- Journal Information:
- J. Appl. Phys.; (United States), Vol. 62:11
- Country of Publication:
- United States
- Language:
- English
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14 SOLAR ENERGY
ALUMINIUM ARSENIDE SOLAR CELLS
CHARGED-PARTICLE TRANSPORT
COMPUTERIZED SIMULATION
PERFORMANCE
ALUMINIUM ARSENIDES
PHYSICAL RADIATION EFFECTS
GALLIUM ARSENIDE SOLAR CELLS
GALLIUM ARSENIDES
CHARGE CARRIERS
CRYSTAL DEFECTS
DAMAGE
DIFFUSION LENGTH
ELECTRIC CONDUCTIVITY
ELECTRICAL FAULTS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
KEV RANGE 100-1000
MATHEMATICAL MODELS
MEV RANGE 01-10
RECOMBINATION
THEORETICAL DATA
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CATIONS
CHARGED PARTICLES
COLLISIONS
CRYSTAL STRUCTURE
DATA
DIMENSIONS
DIRECT ENERGY CONVERTERS
ELECTRICAL PROPERTIES
ENERGY RANGE
EQUIPMENT
GALLIUM COMPOUNDS
HYDROGEN IONS
INFORMATION
IONS
KEV RANGE
LENGTH
MEV RANGE
NUMERICAL DATA
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
RADIATION EFFECTS
RADIATION TRANSPORT
SIMULATION
SOLAR CELLS
SOLAR EQUIPMENT
360605* - Materials- Radiation Effects
140501 - Solar Energy Conversion- Photovoltaic Conversion