Patent ID: 6570083
Filing Date: 2003-05-27
Classification: H01L,Y02E,Y10S

Abstract:
A photovoltaic generator comprising:a matrix comprising at least one optically active material with an absorption wavelength &lgr;a and a reemission wavelength &lgr;r, at least one photovoltaic cell within said matrix, wherein said optically active material is selected such that &lgr;a corresponds to a range of said photovoltaic cell with a lower sensitivity than &lgr;r, a dichroic filter on an input surface of said matrix that substantially reflects wavelengths longer than about 950 nm and is substantially transparent for wavelengths less than about 950 nm, and a diffusing reflecting coating on an opposite surface of said matrix with a maximum reflection ratio for wavelengths between about 300 and about 600 nm, an absorption ratio for wavelengths of about 600 nm and a diffusion ratio for wavelengths of about 950 nm.