发明名称 |
CIS-based thin film solar cell |
摘要 |
A CIS-based thin film solar cell has a backside electrode layer that is divided by a pattern (P1), and a CIS-based light absorption layer, and a transparent conductive film are sequentially formed on a substrate. The backside electrode layer comprises an intermediate layer on the surface that is in contact with the CIS-based light absorption layer, the intermediate layer being composed of a compound of a metal that constitutes the backside electrode layer and a group VI element that constitutes the CIS-based light absorption layer; the intermediate layer comprises a first intermediate layer portion which is formed on the upper surface and a second intermediate layer portion which is formed on the lateral surface that and faces the pattern (P1); and the film thickness of the second intermediate layer portion is larger than the film thickness of the first intermediate layer portion. |
申请公布号 |
US9269841(B2) |
申请公布日期 |
2016.02.23 |
申请号 |
US201113702458 |
申请日期 |
2011.06.16 |
申请人 |
SOLAR FRONTIER K.K. |
发明人 |
Morimoto Takuya;Sugimoto Hiroki;Hakuma Hideki |
分类号 |
H01L31/0224;H01L31/0749;H01L31/046;H01L31/0463;H01L31/032 |
主分类号 |
H01L31/0224 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A CIS-based thin film solar cell fabricated by sequentially depositing a backside electrode layer divided by a dividing groove, a CIS-based light absorption layer and a transparent conductive film on a substrate,
wherein said backside electrode layer comprises an intermediate layer on a surface that is in contact with the CIS-based light absorption layer, said intermediate layer being composed of a compound of a metal that constitutes the backside electrode layer and a group VI element that constitutes the CIS-based light absorption layer, wherein the surface comprises an upper surface and a lateral surface, wherein said intermediate layer comprises a first intermediate layer portion formed on the upper surface that is parallel to the substrate and a second intermediate layer portion formed on the lateral surface that is vertical to the substrate and opposed to the dividing groove, and wherein a film thickness of the second intermediate layer portion along a direction horizontal to the substrate is larger than that of the first intermediate layer portion along a direction vertical to the substrate. |
地址 |
Tokyo JP |