Optics for concentration on PV cells

Year: 2007

Authors: Sansoni P., Fontani D., Francini F., Mercatelli L., Jafrancesco D.

Autors Affiliation: CNR – Istituto Nazionele di Ottica Applicata, Largo e. Fermi 6, 50125 Firenze, Italy

Abstract: Modem PhotoVoltaic cells and technologies for Concentrating PhotoVoltaics require high level of solar light concentration. The paper proposes different collectors for the exploitation of solar light using CPV systems. Solar concentrators have been designed to be coupled to a PV cell with a concentration ratio exceeding 500. The paper analyses and compares characteristics and performances of solar collectors applied in CPV systems. Optical layout and concentration ratio are the primary optical features, which are essential to select the examined collector categories. Then the analysis focuses on the comparison of the optical characteristics that are fundamental for the application in the domain of Concentrating PhotoVoltaics. The most important features in case of light concentration on PhotoVolatic cells are: collection efficiency, image size and image uniformity.

Conference title: Proceedings of ISES – Solar World Congress 2007: Solar Energy and Human Settlement
Place: Beijing – China

KeyWords: Collection efficiency; Concentration ratio; Image uniformity; Important features; Light concentration; Optical characteristics; Optical features; Optical layouts, Photovoltaic cells; Quantum efficiency; Renewable energy resources, Solar concentrators

Citations: 2
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