发明名称 |
SOLAR CELL ELEMENT AND METHOD FOR MANUFACTURING SOLAR CELL ELEMENT |
摘要 |
A solar cell element according to the invention includes: a semiconductor substrate which includes a first conductivity type first semiconductor region positioned on a first main surface, and a second conductivity type second semiconductor region which is different from the first conductivity type in a surface layer portion of a second main surface positioned on an opposite side to the first main surface; and an electrode in line shape which is disposed on the second main surface of the semiconductor substrate. In the solar cell element, the second semiconductor region includes a first concentration region which exists at a position separated from the electrode by a predetermined distance in plan view, and a second concentration region which includes a high concentration region where a dopant concentration is higher than that in the first concentration region and exists along a longitudinal direction of the electrode. The solar cell element includes a part in which a minimum place which has a minimum value of a dopant concentration difference that is obtained by subtracting a dopant concentration value of the first concentration region at a place which is close to a one place from a dopant concentration value of the second concentration region at the one place and a maximum place which has a maximum value of the dopant concentration difference alternately and repeatedly exist along the longitudinal direction of the electrode. Furthermore, the solar cell element includes a part in which a minimum place interval between one end portions of the adjacent minimum places in the longitudinal direction of the electrode varies. |
申请公布号 |
EP2940738(A4) |
申请公布日期 |
2016.07.06 |
申请号 |
EP20130867996 |
申请日期 |
2013.12.25 |
申请人 |
KYOCERA CORPORATION |
发明人 |
HOSOMI, KAZUNORI;OOBA, KENJI |
分类号 |
H01L31/068;H01L31/0224;H01L31/18 |
主分类号 |
H01L31/068 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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