SOLAR CELL

摘要

PURPOSE: A solar cell is provided to improve efficiency by controlling a band gap voltage by doping impurities on an intrinsic semiconductor. CONSTITUTION: A front electrode(110) is formed on a substrate(100). A photoelectric conversion unit is formed on the front electrode. The photoelectric conversion unit includes a first photoelectric conversion unit(120) and a second photoelectric conversion unit(130). The photoelectric conversion unit includes an intrinsic semiconductor layer(132) made of micro crystalline silicon. A rear electrode(140) is formed on the photoelectric conversion unit.