Low cost, 100× 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× concentration. Small area cells of 1.2 cm² have been cut from these cells and tested up to 100× concentration for point focus applications. A potential to achieve 20% efficiency at 100× has been recognised and independent results to date have shown an efficiency approaching 18% at 100×. Based on simple variations of a mass production process, analysis indicates that the manufacturing cost for such cells can be below $0.15/Wp.