PHOTOVOLTAIC ELEMENT AND METHOD OF MANUFACTURING CIS-BASED PHOTOVOLTAIC ELEMENT

• Main Authors: MIYAMOTO MAKOTO, MIYATA KATSUNORI
• Format: Patent
• Language: English
• Published: 24.12.2009
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a thin-film type of photovoltaic element capable of manufacturing a solar cell module with a grid type module structure. SOLUTION: A photovoltaic element 10 for generating power by receiving light is provided with: a substrate 1 comprising an insulating material; a back-face electrode layer 2 formed on the substrate 1; a power generation layer 3 formed on the back-face electrode layer 2; a transparent electrode layer 4 formed on the power generation layer 3; and a metallic collector electrode 5 formed on the transparent electrode layer 4. The collector electrode 5 has a plurality of finger parts for collecting electrons from the transparent electrode layer 4 and a bus bar part for further collecting the electrons collected by the finger parts. The photovoltaic element 10 is characterized by being provided with a short-circuit prevention layer 6 comprising an insulating material having electrical resistance higher than the electrical resistance of the collector electrode 5 between the bus bar part and the transparent electrode layer 4. COPYRIGHT: (C)2010,JPO&INPIT