SOLAR CELL AND SOLAR-CELL MODULE

专利名称：SOLAR CELL AND SOLAR-CELL MODULE发明人：HASHIGAMI Hiroshi,WATABE

Takenori,TAKAHASHI Mitsuhito,TSUKIGATAShintarou,MURAKAMI Takashi,MITTARyo,ENDO Yoko,OTSUKA Hiroyuki

申请号：EP11846590.5申请日：20111201公开号：EP2650923A1公开日：20131016

专利附图：

摘要：A solar cell wherein: an emitter layer is formed on a light-receiving-surface side

of a crystalline silicon substrate, with a dopant of the opposite conductivity type from thesilicon substrate added to said emitter layer; a passivation film is formed on the surfaceof the silicon substrate; and an extraction electrode and a collector electrode areformed. Said extraction electrode extracts photogenerated charge from the siliconsubstrate, and said collector electrode contacts the extraction electrode at leastpartially and collects the charge collected at the extraction electrode. The extractionelectrode contains a first electrode that consists of a sintered conductive paste

containing a dopant that makes silicon conductive. Said first electrode, at least, is formedso as to pass through the abovementioned passivation layer. The collection electrodecontains a second electrode that has a higher conductivity than the aforementioned firstelectrode. This invention reduces contact-resistance losses between the silicon and theelectrodes, resistance losses due to electrode resistance, and optical and electricallosses in the emitter layer, thereby greatly improving the characteristics of the solar cell.

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

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