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1. 发明公开

EP3203530A1 SOLAR CELL AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：太阳能电池及其制造方法
公开(公告)号：EP3203530A1
公开(公告)日：2017-08-09
申请号：EP15846154.1
申请日：2015-07-02
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： MATSUO, Yoko , WATABE, Takenori , OTSUKA, Hiroyuki
IPC分类号： H01L31/0224 , H01L31/068
CPC分类号： H01L31/0201 , H01L31/02167 , H01L31/022425 , H01L31/022433 , H01L31/022441 , H01L31/068 , H01L31/0682 , Y02E10/547
摘要： The present invention is a solar cell including: a semiconductor substrate of a first conductivity type having a region of the first conductivity type and a region of a second conductivity type on the back side, which is the opposite side of the light-receiving surface; a first finger electrode composed of a first contact portion and a first current collector, a second finger electrode composed of a second contact portion and a second current collector, a first bus bar electrode, and a second bus bar electrode on the backside; and an insulator film disposed at least in the whole area just under the first bus bar electrode and the second bus bar electrode; wherein the electrical contact between the first current collector and the first bus bar electrode as well as the electrical contact between the second current collector and the second bus bar electrode are made on the insulator film; and the first contact portion and the second contact portion are each in a continuous line shape at least just under the insulator film. This provides a solar cell with a wide passivation region, low wiring resistance, high parallel resistance, and high conversion efficiency; and a method for producing a solar cell which can produce such a solar cell at low cost.
摘要翻译：本发明是一种太阳能电池，其特征在于，具备：第一导电型的半导体基板，其在与所述受光面相反的一侧的背面侧具有所述第一导电型的区域和第二导电型的区域; 由第一接触部分和第一集电器构成的第一指状电极，由第二接触部分和第二集电器构成的第二指状电极，第一母线电极和在后侧上的第二母线电极; 以及至少配置在所述第一母线电极和所述第二母线电极正下方的整个区域的绝缘膜，其中所述第一集流器与所述第一母线电极之间的电接触以及所述第二集流器与所述第二母线电极之间的电接触在所述绝缘膜上形成; 并且所述第一接触部分和所述第二接触部分每个都至少在所述绝缘膜下方呈连续线状。这提供了具有宽钝化区域，低布线电阻，高并联电阻和高转换效率的太阳能电池; 以及能够以低成本制造这种太阳能电池的太阳能电池的制造方法。

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