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Title: Optical study of a spectrum splitting solar concentrator based on a combination of a diffraction grating and a Fresnel lens

This paper presents recent improvements of our new solar concentrator design for space application. The concentrator is based on a combination of a diffraction grating (blazed or lamellar) coupled with a Fresnel lens. Thanks to this diffractive/refractive combination, this optical element splits spatially and spectrally the light and focus approximately respectively visible light and IR light onto electrically independent specific cells. It avoid the use of MJs cells and then also their limitations like current matching and lattice matching conditions, leading theoretically to a more tolerant system. The concept is reminded, with recent optimizations, ideal and more realistic results, and the description of an experimental realization highlighting the feasibility of the concept and the closeness of theoretical and experimental results.
Authors:
;  [1] ;  [2] ; ;  [1]
  1. Centre Spatial de Liège, Avenue du Pré-Aily, 4031 Angleur (Belgium)
  2. (B5a), 4000 Liège (Belgium)
Publication Date:
OSTI Identifier:
22489015
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1679; Journal Issue: 1; Conference: CPV-11: 11. international conference on conventrator photovoltaictaic systems, Aix-les-Bains (France), 13-15 Apr 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; CURRENTS; DESIGN; DIFFRACTION; DIFFRACTION GRATINGS; FRESNEL LENS; OPTIMIZATION; REFRACTION; SOLAR CELLS; SOLAR CONCENTRATORS; VISIBLE RADIATION