Possible Improvement of Solar Cell Efficiency

In this work we present the development of a new solar cell prototype in order to improve photo voltaic efficiency. In this model we show that the material can have three successive incident ray absorptions instead of two currently, by varying the incidence angle, the aperture between the summit of two neighbouring pyramids and their height. This study concerns in particular the photovoltaic parameters such as the spectral response. This model was checked for angles varying between 54 and 60 degrees and for pyramid heights between 5 and 10 mu m. For these values of incidence angle, the apertures between the summits of two neighbouring pyramids varied respectively from 14.54 to 11.54 mu m for a pyramid height of 10 mu m.