Low cost, 100/spl times/ point focus silicon concentrator cells made by the LGBC process

LGBC silicon solar cells have demonstrated efficiencies up to 20% when used in linear focus concentrating systems up to 20/spl times/ concentration. Small area cells of 1.2 cm/sup 2/ have been cut from these cells and tested up to 100/spl times/ concentration for point focus applications. A potential to achieve 20% efficiency at 100/spl times/ has been recognised and independent results to date have shown an efficiency approaching 18% at 100/spl times/. Based on simple variations of a mass production process, analysis indicates that the manufacturing cost for such cells can be below $0.15/Wp.