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19 August 2010 Optical design for reliability and efficiency in concentrating photovoltaics
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Abstract
Complex systems like modules in concentrating photovoltaics (CPV) are designed in a systems approach. The better the components are concerted, the better the performance goals of the system can be fulfilled. Optics are central to the CPV module's reliability and efficiency. Fresnel lens optics provide the module cover, and protect the module against the environment. Fresnel lenses on glass can provide the module's structural integrity. The secondary optical element, used to increase the collection of light, the acceptance half-angle, and the uniformity on the cell, may provide encapsulation for the receiver. This encapsulation function may be provided by some optical designs in sol gel, or silicone. Both materials are unknown in their longevity in this application. We present optical designs fulfilling structural or protective functions, discuss the optical penalties to be paid, and the innovative materials and manufacturing technologies to be tested.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ralf Leutz, Hans Philipp Annen, and Ling Fu "Optical design for reliability and efficiency in concentrating photovoltaics", Proc. SPIE 7773, Reliability of Photovoltaic Cells, Modules, Components, and Systems III, 777304 (19 August 2010); https://doi.org/10.1117/12.861156
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