To provide a solar cell wherein warpage caused in the solar cell constituting a solar cell string can be reduced, and to provide a solar cell string and a solar cell module.
A first bus bar electrode on a first main plane of a semiconductor substrate, and a second bus bar electrode on a second main plane of the semiconductor substrate, are arranged at nearly symmetrical positions to each other against the semiconductor substrate; and the length of a first nonconnection section among adjoining first connection sections is larger than that of a second nonconnection section among adjoining second connection sections. In addition, the length of a second nonconnection section among adjoining second connection sections is larger than that of a first nonconnection section among adjoining first connection sections. The solar cell, solar string and solar cell module have such the structure.
NAKAMURA KYOTARO
MIYAZAWA AKIRA
HIOKI MASAOMI
OSA MASAHIRO
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
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