| Autor: |
Leutz, Ralf, Ries, Harald |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2022, Vol. 2550 Issue 1, p1-5, 5p |
| Abstrakt: |
Dispersion is limiting the concentration ratio of lens-based solar concentrators. The classical correction of chromatic aberrations using two different materials in two cemented lenses (e.g., flint and crown glasses or two different polymers) requires one lens to be divergent, offsetting the concentration of the other lens. Using two materials is potentially costly where large areas are required. In the present work, we develop a novel approach based on diffractive optical elements (DOE) which can be applied as a thin layer of silicone on a glass substrate, in the same process currently used to manufacture silicone-on-glass (SOG) Fresnel lens parquets. Our design works for Fresnel lenses; efficiencies and concentration ratios of concentrating photovoltaics are no longer restricted by dispersion, nor by divergence. This could result in saving a significant amount of cell area, or in affording additional freedom in tracking tolerances. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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