| abstract |
A textured structure of a crystalline silicon solar cell that is mainly constructed by a plurality of micro-structures similar to inverted pyramids; the lower part of the micro-structure similar to the inverted pyramid is an inverted pyramidal structure, and the upper part thereof is an inverted circular truncated conical structure; and the top of the micro-structure similar to the inverted pyramid is selected from one or more of a circle, an oval, or a closed figure enclosed by multiple curves. Experiments prove that the conversion efficiency of a cell piece may be improved by 0.25-0.4%, thereby obtaining unexpected effects. |