Abstract
LGBC silicon solar cells have demonstrated efficiencies up to 20% when used in linear focus concentrating systems up to 20X concentration. Small area cells of 1.2 cm2 have been cut from these cells and tested up to 100X concentration for point focus applications. A potential to achieve 20% efficiency at 100X has been recognised and independent results to date have shown an efficiency approaching 18% at 100X. Based on simple variations of a mass production process, analysis indicates that the manufacturing cost for such cells can be below $0.15/Wp. ©2005 IEEE.