NOVELTY - The method of making a textured surface on a solar cell including a single-junction structure and a multi-junction structure, comprises supplying (12) a silicon quantum dot-silicon nitride film on a solar cell with a P-type layer and an N-type layer by chemical vapor deposition, etching (13) the silicon quantum dot-silicon nitride film in a first phase, and etching the silicon quantum dot-silicon nitride film in a second phase. The etching of the silicon nitride is faster than that of the silicon quantum dots so that the silicon quantum dots are exposed.    USE - The method is useful for making a textured surface on a solar cell including a single-junction structure and a multi-junction structure (claimed).    ADVANTAGE - The method is capable of rapidly and economically making a textured surface on a solar cell thus improving the efficiency of the conversion of solar energy into electricity.    DETAILED DESCRIPTION - The method of making a textured surface on a solar cell including a single-junction structure and a multi-junction structure, comprises supplying (12) a silicon quantum dot-silicon nitride film on a solar cell with a P-type layer and an N-type layer by chemical vapor deposition, etching (13) the silicon quantum dot-silicon nitride film in a first phase, and etching the silicon quantum dot-silicon nitride film in a second phase. The etching of the silicon nitride is either faster than that of the silicon quantum dots so that the silicon quantum dots are exposed, thus forming a transient textured surface on the silicon quantum dot-silicon nitride film, or slower than that of the silicon quantum dots so that some of the silicon quantum dots are removed, thus leaving cavities in the silicon quantum dot-silicon nitride film and forming a final textured surface on the silicon quantum dot-silicon nitride film. The chemical vapor deposition includes plasma-enhanced chemical vapor deposition, electron cyclotron resonance chemical vapor deposition, very high frequency chemical vapor deposition and hot wire chemical vapor deposition.    DESCRIPTION OF DRAWING(S) - The diagram shows a flow chart of a method for making a textured surface on a solar cell.    Providing a solar cell (11)    Providing a silicon quantum dot-silicon nitride film on the solar cell (12)    Etching the silicon quantum dot-silicon nitride film to form a transient textured surface (13)    Forming a final textured surface. (14)