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

Journal Article · Mon Sep 28 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4931539· OSTI ID:22489015

Michel, Céline; Habraken, Serge ^[1]; Loicq, Jérôme; Thibert, Tanguy ^[1]

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1. Centre Spatial de Liège, Avenue du Pré-Aily, 4031 Angleur (Belgium)

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.

• OSTI ID: 22489015
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1679; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
CURRENTS
DESIGN
DIFFRACTION
DIFFRACTION GRATINGS
FRESNEL LENS
OPTIMIZATION
REFRACTION
SOLAR CELLS
SOLAR CONCENTRATORS
VISIBLE RADIATION