Development of a window holographic lens to utilize solar energy

Abstract

A transmission holographic optical element to perform like a lens was recorded successfully in a silver halide holographic recording material using off-axis geometry. The wavelength selectivity and the focusing property of holographic lens were used to design concentrator for solar radiation to enhance the power yield from photovoltaic systems. The fabricated holographic lens was coupled to a dye sensitized solar cell and an efficiency enhancement was found. The present paper explores a simple idea to use the holographic lens on a window pane of a house. The window pane can either accommodate a small holographic lens or act entirely as a holographic lens for solar concentration. The preliminary results obtained are reported.