Solar cell and preparation method thereof

Abstract

A solar cell includes a semiconductor substrate including a main light receiving surface and a back surface arranged opposite thereto; a light trapping microstructure arranged on the main light receiving surface, the light trapping microstructure including a plurality of pyramid microstructures; a doped conductive layer located in an upper region of at least part of the pyramid microstructures and spaced apart from a bottom surface of at least part of the pyramid microstructures; a passivation layer located on a surface of the light trapping microstructure; a first electrode, the first electrode at least partially extending through the passivation layer and being in ohmic contact with the doped conductive layer; a back passivation contact structure located on the back surface; and a second electrode, the second electrode being in ohmic contact with the back passivation contact structure.

Dependencies are inferred from the claim text.