Porous silicon formation on solar cells surface

In the paper the process of formation of porous silicon on textured surface of solar cells is studied. It is shown that porous layers formed by the etchant HF:NaNO
₂
:H
₂
O, can be successfully applied in photovoltaic technology as antireflective coating . Technology of the obtaining of porous layer by chemical etching can be applied after contact grid formation. It is shown that as a result of a porous layer efficiency of solar cells increased by 20-30% on average.