Photovoltaic Devices and Photovoltaic Roofing Elements Including Granules, and Roofs Using Them

摘要

The present invention includes photovoltaic devices and photovoltaic roofing elements comprising a photovoltaic element having an active face and an operating wavelength range; a polymer structure having (a) a bottom surface disposed on the active face of the photovoltaic element and (b) a top surface; and a plurality of granules disposed on the top surface of the polymer structure. Roofs including the photovoltaic devices and photovoltaic roofing elements of the present invention may be configured to have an aesthetically desirable appearance while retaining high photovoltaic efficiency.