SOLAR CELL

摘要

PURPOSE: A solar cell is provided to improve the efficiency of the solar cell by increasing an amount of light inputted to a substrate. CONSTITUTION: A substrate(110) includes an uneven surface with a plurality of protrusion units. An emitter(121) forms a p-n junction with the substrate. A plurality of front electrodes(140) is connected to the emitter. A rear electrode(151) is electrically connected to the substrate.