1. Development and investigation of linear Fresnel lens for concentrator space solar arrays
- Author
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Vyacheslav M. Andreev, Alena V. Andreeva, Evgeny V. Kontrosh, Evgeniya A. Ionova, and Vitaliy S. Kalinovskii
- Subjects
Materials science ,business.industry ,Photovoltaic system ,Fresnel lens ,Radiation ,Silicone rubber ,Concentrator ,Fluence ,law.invention ,Lens (optics) ,chemistry.chemical_compound ,Optics ,chemistry ,law ,Irradiation ,business - Abstract
Highly efficient ultra-lightweight doubled linear Fresnel-lens concentrators of solar light, which operate in tandem with multijunction InGaP/GaAs/Ge solar cells, have been developed and fabricated. The concentrators have a total photoactive area of (50×100) mm2, with the total thickness of ≤0.35 mm and optical focus of 32 mm. The Fresnel profile of each linear lens in the concentrator is formed from silicone rubber on ≤100 µm radiation-hard glass. The efficiency of the linear lens concentrators was 90% for the AM0 spectrum (1367 W/m2). The efficiency of the concentrators was examined before and after the irradiation and thermal-cycling tests. A 10% decrease in the efficiency of the linear lens concentrators is observed upon irradiation with 1 MeV electrons at a fluence of 3×1015 cm−2 and a
- Published
- 2019
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