Kyocera Corporation

Kenji Fukui

Tomonari Sakamoto

Mitsuo Yamashita

Koichiro Niira

Yosuke Inomata

Naoya Kobamoto

Hiroshi Morita

Tatsuya Yashiki

Koji Nishi

Yuko Fukawa

Norikazu Nakatani

Shuichi Fujii

A solar cell element comprising a semiconductor substrate including a first surface to receive light, and a second surface provided on a back side of the first surface, a plurality of base collector electrodes provided on the second surface of the semiconductor substrate, a plurality of collector electrodes provided on the plurality of base collector electrodes, a connector electrode to electrically connect the collector electrodes adjacent to each other across a region between the plurality of base collector electrodes among the plurality of collector electrodes. A first extracting electrode provided between the plurality of base collector electrodes, and a second extracting electrode electrically connected to at least one of the plurality of collector electrodes.

Solar cell element and solar cell module

A surface electrode () is installed on the light receiving surface of a solar cell element, the surface electrode () comprises three bus bar electrodes () for extracting light-produced at the solar cell element to the outside and collecting finger electrodes () connected to these bus bar electrodes (), and the bus bar electrodes () are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes () are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode () and thereby decreasing the lengths of the finger electrodes ().

Solar cell module and photovoltaic power generator using the same

Growing community of inventors

Higashiomi, Japan

Kenji Fukui