Concentrator efficiencies of 29. 2% for a GaAs cell and 24. 8% for a mounted cell-lens assembly

Conference · Thu Dec 31 23:00:00 EST 1987

OSTI ID:6724010

Kaminar, N R; Liu, D D; MacMillan, H F; Partain, L D; Ristow, M L; Virshup, G F; Gee, J M

A lens/cell efficiency of 24.8% has been obtained in an outdoor test using a single GaAs cell and a Fresnel lens. This is the highest efficiency ever reported for a lens/cell assembly. During the test, the cell was water cooled to a junction temperature of 45/degree/C and the concentration ratio was 205:1. In a related test, a 29.2% cell efficiency was obtained using a GaAs concentrator cell and an Entech prismatic cover glass designed to reduce the effect of shadowing of the grid lines. This efficiency was measured in the flash tester at Sandia Laboratories. 3 refs., 4 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6724010
• Report Number(s): SAND-88-2832C; CONF-880965-22; ON: DE89001612
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
141000 -- Solar Collectors & Concentrators
COST
DATA
DIRECT ENERGY CONVERTERS
EFFICIENCY
EQUIPMENT
FRESNEL LENS
GALLIUM ARSENIDE SOLAR CELLS
INFORMATION
LENSES
NUMERICAL DATA
PERFORMANCE TESTING
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
SOLAR CONCENTRATORS
SOLAR EQUIPMENT
TESTING