BIFACIAL PHOTOVOLTAIC LOCALIZED EMITTER SOLAR CELL AND METHOD FOR MANUFACTURING THEREOF

摘要

PURPOSE: A solar cell with a localized emitter receiving light from both sides and a manufacturing method thereof are provided to maximize efficiency in a solar cell by forming a light receiving portion on front and back surfaces of a substrate. CONSTITUTION: A front electrode(14) and a back electrode(15) are prepared on upper and lower portions of a first conductivity type substrate made of a silicon material. A heavily doped region(10-2) having a second conductive impurity is locally formed on the upper portion of the substrate. A dielectric layer and a secondary electrode layer are successively laminated between the substrate and the front electrode. A heavily doped region(10-1) having a first conductive impurity is locally formed on the lower portion of the substrate. The dielectric layer and the secondary electrode layer are successively laminated between the substrate and the back electrode.