Luminescent solar concentrator

Abstract

The present invention relates to a luminescent solar concentrator for a solar cell, comprising a collector with a luminescent substrate, and a wavelength selective filter, wherein the wavelength selective filter is arranged above the surface of the collector, wherein the luminescent substrate has an absorption edge which corresponds to a wavelength λex and emits radiation around a wavelength λem, wherein the selective filter h a refractive-index contrast Δn with a negative or zero dispersion, and wherein the wavelength selective filter is designed to keep the emitted radiation inside the collector while shifting the reflection band of the incident radiation to angles ≧25° and/or to narrow the reflection band to a range of ≦10°.

Dependencies are inferred from the claim text.