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Computer simulations of the proton irradiated (AlGa)As-GaAs solar cells

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.339058· OSTI ID:6088397
; ;
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), Journal Name: J. Appl. Phys.; (United States) Vol. 62:11; ISSN JAPIA
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
140501 -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
ALUMINIUM ARSENIDE SOLAR CELLS
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CATIONS
CHARGE CARRIERS
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
COLLISIONS
COMPUTERIZED SIMULATION
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DAMAGE
DATA
DIFFUSION LENGTH
DIMENSIONS
DIRECT ENERGY CONVERTERS
ELECTRIC CONDUCTIVITY
ELECTRICAL FAULTS
ELECTRICAL PROPERTIES
ENERGY RANGE
EQUIPMENT
GALLIUM ARSENIDE SOLAR CELLS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INFORMATION
ION COLLISIONS
IONS
KEV RANGE
KEV RANGE 100-1000
LENGTH
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
NUMERICAL DATA
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
PNICTIDES
RADIATION EFFECTS
RADIATION TRANSPORT
RECOMBINATION
SIMULATION
SOLAR CELLS
SOLAR EQUIPMENT
THEORETICAL DATA