Patent ID: 9105785
Filing Date: 2015-08-11
Classification: H01L,Y02E

Abstract:
1. A luminescent solar concentrator (LSC) comprising: a composite substrate comprising: an apical surface of the composite substrate comprising a first film including a first film edge surface and containing a first luminescent compound, wherein an apical surface of said film is proximal to a first wavelength-selective mirror, said first wavelength-selective mirror being transmissive for a range of light wavelengths and reflective for wavelengths corresponding to those at which said first luminescent compound emits light; a second film positioned beneath said first film, wherein said second film includes a second film edge surface and contains a second luminescent compound, and an apical surface of said second film is proximal to a second wavelength-selective mirror, said second wavelength-selective mirror being transmissive for a range of light wavelengths and reflective for wavelengths corresponding to those at which said second luminescent compound emits light, said first luminescent compound emits light at a wavelength which is longer than that at which said second luminescent compound emits light; a basal surface comprising a third wavelength-selective mirror, said third wavelength-selective mirror being reflective for wavelengths corresponding to those at which luminescent compounds positioned thereabove in the composite substrate emit light; a transparent body positioned between a basal surface of said second luminescent film and an apical surface of said third wavelength-selective mirror; and a photovoltaic cell, the photovoltaic cell on the first film edge and the photovoltaic cell on the second film edge.