ENCAPSULATED SOLAR ENERGY CONCENTRATOR

摘要

A holographic planar concentrator of solar energy employing an array of holographically-recorded diffraction grating elements adjoining the corresponding bifacial or monofacial PV-cell. Diffracting grating elements are configured to operate in transmission and/or reflection. The array is sandwiched and, optionally, encapsulated between the two layers of structurally supporting material that are impermeable to ambient moisture. The grating elements can be blazed and the material layer in which the gratings are recorded is protected from the moisture in the ambient environment by a moisture impermeable encapsulant.