Trade-offs in designing modules with Fresnel lens sunlight concentrators
Shvarts M. Z. 1, Emelyanov V. M. 1, Levina S. A. 1, Nakhimovich M. V. 1, Soluyanov A. A.1
1Ioffe Institute, St. Petersburg, Russia
Email: shvarts@scell.ioffe.ru, levina@mail.ioffe.ru, NMar@mail.ioffe.ru, vinivka442@yandex.ru

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The paper discusses options for the design of concentrator photovoltaic modules with reduced structural heights; those options are based on trade-offs between reducing the Fresnel lens optical efficiency, changing the profile of the light power distribution in the focal spot, and ensuring the required (permissible) misorientation angles at the pre-specified average geometric concentration in the lens-solar cell pair. Keywords: Fresnel lens, multijunction solar cell, average geometric sunlight concentration, misorientation angle.
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