SINGLE CRYSTALLINE SILICON WAFERS AND METHOD OF PREPARING THE SAME

摘要

PURPOSE: A single-crystalline silicon wafer and a manufacturing method thereof are provided to maximize absorption volume of sunlight by forming the side in order to have a surface consisting of multiple pyramids. CONSTITUTION: The side(S2) of a pyramid comprises a curved surface ranging from one peak(a2) to a bottom surface. A single-crystalline silicon wafer has a surface in which the pyramid is repeatedly formed. The curved surface is convexly formed towards a center portion of the pyramid. The single-crystalline silicon wafer is manufactured without using a mask for etching. The single-crystalline silicon wafer is texture-etched using an etchant composition.