专利名称:SOLAR CELL AND SOLAR-CELL MODULE发明人:HASHIGAMI Hiroshi,ISHIKAWA
Naoki,WATABE Takenori,OTSUKA Hiroyuki
申请号:EP11847500.3申请日:20111201公开号:EP2650926A1公开日:20131016
专利附图:
摘要:A solar cell wherein a passivation film is formed on a crystalline silicon substratethat has at least a p-n junction, and an electrode is formed by printing and heat-treating aconductive paste. Said solar cell has: a first electrode comprising an extraction electrode,
which extracts photogenerated carriers from the silicon substrate, formed so as tocontact the silicon substrate; and a second electrode comprising a collector electrode,which collects the carriers collected at the extraction electrode, formed so as to contactthe first electrode. Other than the point of contact between the first electrode and thesecond electrode, at least, the second electrode contacts the silicon substrate onlypartially or not at all. By leaving the passivation film between the collector electrode andthe silicon, either completely or partially, the present invention reduces charge losses atelectrode/silicon interfaces, improves the short-circuit current and open voltage, andyields a solar cell with improved characteristics. Furthermore, the process can beimplemented using existing screen-printing technology or the like, which is extremelyeffective in reducing costs.
申请人:Shin-Etsu Chemical Co., Ltd.
地址:6-1, Ohtemachi 2-chome Chiyoda-ku Tokyo 100-0004 JP
国籍:JP
代理机构:Stoner, Gerard Patrick
更多信息请下载全文后查看
因篇幅问题不能全部显示,请点此查看更多更全内容