High-efficiency silicon concentrator solar cell research
- New South Wales Univ., Kensington (Australia). Solar Photovoltaic Lab.
This project continued the development of high efficiency silicon concentrator solar cells with the goal of achieving a 24% efficient module ready'' cell. This target was comfortably achieved with efficiencies as high as 25.2% at 125 suns concentration measured at Sandia National Laboratories. In outdoor testing at Sandia, cells of this type but of more modest performance resulted in lens/cell efficiency above 20% for the first time. Exciting results were obtained with a new cell structure, the PERC cell (passivated emitter and rear cell) which demonstrated an efficiency of 21.8% for a nonconcentrating cell and creditable performance out to 20 suns for concentrator cells. Progress was also reported for cells fabricated on n-type substrates and for plasma grooved, buried contact solar cells. 22 refs., 23 figs., 9 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA); New South Wales Univ., Kensington (Australia). Solar Photovoltaic Lab.
- Sponsoring Organization:
- DOE/CE
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7158811
- Report Number(s):
- SAND-89-7041; ON: DE90008040
- Country of Publication:
- United States
- Language:
- English
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CONCENTRATOR SOLAR CELLS
RESEARCH PROGRAMS
SILICON SOLAR CELLS
CURRENT DENSITY
DESIGN
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY EFFICIENCY
FABRICATION
FEASIBILITY STUDIES
MEASURING METHODS
PASSIVITY
PERFORMANCE TESTING
REFLECTIVITY
TEMPERATURE EFFECTS
DIRECT ENERGY CONVERTERS
EFFICIENCY
EQUIPMENT
MATERIALS
OPTICAL PROPERTIES
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR CELLS
SOLAR EQUIPMENT
SURFACE PROPERTIES
TESTING
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