Abstract: A photovoltaic device including at least one active layer, a transparent cover plate, a layer that contains luminescent molecules and a layer that contains on at least one side an array of defined and repeating geometrical optical structures, wherein an individual geometrical optical structure of the array comprises a m-polygonal base and an apex area, the m-polygonal base and the apex area are connected by m surfaces with m being equal to 3 or higher.
Abstract: A photovoltaic device including an active layer of an amorphous material in which the active layer is in the shape of an array of defined and repeating geometrical structures, wherein the geometrical structures include a base and a single apex that are connected by at least three n-polygonal surfaces where n is equal to 4 or higher.