SOLAR BATTERY AND METHOD OF ITS MANUFACTURE Russian patent published in 2017 - IPC H01L31/68 H01L31/18 

FIELD: physics.

SUBSTANCE: according to the invention, there is provided a method for manufacturing solar cells, comprising the steps of forming a SiN_x film over a second major surface of an n-type semiconductor substrate; forming a p-type diffusion layer over the first major surface of the n-type semiconductor substrate after the SiN_x film formation step; and forming, on top of the p-type diffusion layer, a passivation film consisting of a SiO₂ film or alumina films. A second version of the method is proposed, in which an n-type diffusion layer is formed over the second major surface of the p-type semiconductor substrate; the formation of a SiN_x film over an n-type diffusion layer; forming the texture only on the first major surface of the p-type semiconductor substrate after the step of forming the SiN_x film and forming, on top of the first major surface of the p-type semiconductor substrate, a passivation film consisting of a SiO₂ film or alumina film, after the texture formation step. The solar panels manufactured by the methods described above are also proposed.

EFFECT: possibility of increasing the efficiency of photoelectric conversion.

12 cl, 1 tbl, 7 dwg