Solar cell element and method for manufacturing same

• Main Authors: GOTOU SHIGERU, INAI SEIICHIRO, MATSUSHIMA NORIHIKO, SHIBAHARA MOTOKI, KITAYAMA SATOSHI, MURAO AKIRA
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

A solar cell element according to an embodiment of the present invention is provided with: a semiconductor substrate having a first surface, and a second surface located on the opposite side from the first surface; a passivation film disposed on the second surface of the semiconductor substrate; first electrodes in contact with the semiconductor substrate in a state of penetrating the passivation film at a plurality of positions; a second electrode disposed in a straight line on the semiconductor substrate, on the passivation film or in a state of penetrating the passivation film, at a location that does not overlap with the first electrodes in plan view; and a third electrode covering the passivation film, the first electrodes, and a part of the second electrode so as to be in contact with the first electrodes and the second electrode. The electrical resistance of the first electrodes is smaller than that of the third electrode. 本发明的方式涉及的太阳能电池元件，具备：半导体基板，具有第1面以及位于该第1面的相反侧的第2面；钝化膜，配置于该半导体基板的所述第2面；第1电极，以在多个部位贯