PHOTOVOLTAIC MODULE INCLUDING CONCENTRATION OPTIC WITH SUBWAVELENGTH PATTERNS, AND SOLAR POWER GENERATOR FOR SATELLITE INCLUDING THE SAME MODULE

摘要

PROBLEM TO BE SOLVED: To provide: a photovoltaic module including a concentration optic with subwavelength patterns; and a solar power generator for satellite including such a module.SOLUTION: A photovoltaic module comprises: at least one photovoltaic cell CV and one concentration optic device Oc, intended to be illuminated by a light flux emitted at at least one illumination wavelength (λ) belonging to a wavelength band defined by a minimum wavelength (λ) and a maximum wavelength (λ) of solar radiation of the order of [380-1600 nm]. The concentration optic device is a monolithic component and includes a diffractive structure including subwavelength patterns, defined in a so-called structured material. The subwavelength patterns have at least one dimension less than or equal to an average illumination wavelength λsituated between λand λdivided by a refractive index of the structured material. The patterns are separated from one another by subwavelength distances, defined between centers of adjacent patterns. The concentration optic device ensures at least one focusing function and one diffraction function.SELECTED DRAWING: Figure 2b