Performance of silicone-on-glass Fresnel lenses in EMCORE's Gen 3 high-concentration concentrator photovoltaic system

摘要

EMCORE's Concentrator Photovoltaic (CPV) systems use large-format Fresnel lenses to achieve 1090Xconcentration onto high-efficiency multi-junction solar cells. The use of Fresnel lenses is common in CPVsystems due to their thin profile and light weight. EMCORE uses silicone-on-glass (SOG) lens technology,which provides a high-reliability, high-durability alternative to acrylic lenses. This paper describesperformance variations of these lenses based on the Fresnel groove depth. Both the optical efficiency andtemperature dependence of the optical system are evaluated as a function of groove depth.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.