METHOD OF PREPARING SELECTIVE EMITTER OF SOLAR CELL AND METHOD OF MANUFACTURING SOLAR CELL

摘要

PURPOSE: A method for selectively forming an emitter of a solar cell and a manufacturing method thereof are provided to use a doping paste as a blocking layer of an etch-back, thereby simplifying a selective emitter structure of a solar cell. CONSTITUTION: High doping(n++) for forming an emitter layer(20) is performed on a silicon substrate(10). A doping paste is coated on a location of the substrate where an electrode is formed. A surface on which the doping paste is partially coated is etched back. The doping paste is removed. The surface of the substrate removing the doping paste is oxidized.