Design and demonstration of a spectrum-splitting photovoltaic concentrator module

Technical Report · Sun Oct 31 23:00:00 EST 1982

DOI:https://doi.org/10.2172/6742726· OSTI ID:6742726

Borden, P G; Gregory, P E; Moore, O E

A spectrum splitting, concentrating photovoltaic module has been designed and fabricated that uses point focus curved facet Fresnel lenses to concentrate incident sunlight. The concentrated sunlight beam spectrum is split into a high and low energy part by a dichroic filter. The high energy part of the spectrum is transmitted to an AlGaAs solar cell and the low energy part is reflected to a Si cell. Spectrum splitting and using cells that respond best to the two parts of the spectrum splitting and using cells that respond best to the two parts of the spectrum gives a higher efficiency than the use of either cell alone. The experimental module has been tested which consists of 10 AlGaAs and 10 Si cells, and a sunlight to electricity conversion efficiency of 20% has been measured.

• Research Organization: Varian Associates, Palo Alto, CA (USA). Solid State Lab.
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6742726
• Report Number(s): SAND-82-7120; ON: DE83003669
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CONCENTRATOR SOLAR CELLS
CURRENTS
DATA
DESIGN
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
EQUIPMENT
EXPERIMENTAL DATA
FILL FACTORS
FILTERS
FRESNEL LENS
GALLIUM ARSENIDE SOLAR CELLS
INFORMATION
INSOLATION
LENSES
LIGHT TRANSMISSION
NUMERICAL DATA
OPTICAL FILTERS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PNICTIDES
QUANTUM EFFICIENCY
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SOLAR FLUX
SPECTRAL RESPONSE
TESTING