High efficiency silicon solar cells for concentrators

The potential of high-efficiency laser buried grid cells in CZ wafers is evaluated for use in concentrators up to 20 suns insolation. The standard one-sun cell shows acceptable efficiency up to seven times concentration. Simple modifications of the one-sun cell structure have been evaluated with mea...

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Bibliographic Details
Main Authors: Mason, N.B., Jordan, D., Bruton, T.M., Summers, J.G., Hughes, A.E., Whitfield, G.R., Bentley, R.W.
Format: Conference Proceeding
Language:English
Subjects:
Costs
Heat sinks
Lamps
Manufacturing processes
Photovoltaic cells
Probes
Semiconductor materials
Silicon
Sun
Water heating
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Summary:The potential of high-efficiency laser buried grid cells in CZ wafers is evaluated for use in concentrators up to 20 suns insolation. The standard one-sun cell shows acceptable efficiency up to seven times concentration. Simple modifications of the one-sun cell structure have been evaluated with measurements up to 12.6 suns. The best structure was optimized in its fabrication, and produced an efficiency of 18% (25 degrees C) and showed the potential to achieve 20% at 20 suns.< >
DOI:10.1109/PVSC.1991.169194