INVERTED PYRAMID TEXTURE FORMATION ON SINGLE-CRYSTALLINE SILICON

摘要

A method for texturing a single-crystalline silicon substrate is provided in which inverted pyramids are formed within the textured single-crystalline silicon substrate. The textured single-crystalline silicon substrates containing the inverted pyramids provided by the present disclosure have a low reflectance associated therewith and thus can be used as a component of a silicon solar cell. The method includes forming a plurality of openings that extend beneath an upper surface of a single-crystalline silicon substrate, and forming inverted pyramids in each of the openings by expanding each opening.