Porous silicon layer as antireflection coating in solar cells

The purpose of work is to improve the performance of standard screen - printed silicon solar cells by incorporating a method by forming a porous silicon (PS) layer on the top surface of large area n+/p monocrystalline, multicrystalline and textured silicon solar cells by electrochemical etching in a fluorohydric solution. The photovoltaic properties of three solar cells groups with and without PS layer are compared. Reflectivity measurements are presented in order to evaluate the effectiveness of PS layer as antireflection coating.