发明名称 |
Substrate for thin-film solar cell, method for producing the same, and thin-film solar cell employing it |
摘要 |
An inexpensive substrate for thin film solar cells having improved performance of a thin film solar cell, and a manufacturing method thereof are provided by increasing light trapping effect due to effective increase in unevenness of a substrate for thin film solar cells. Furthermore, a thin film solar cell having improved performance using the substrate is provided. A substrate for thin film solar cells of the present invention has a transparent insulating substrate and a transparent electrode layer deposited thereon including at least zinc oxide (ZnO), the transparent insulating substrate has a fine surface unevenness having a root-mean-square deviation of the surface (RMS) 5 to 50 nm in an interface by a side of the transparent electrode layer, a projected area thereof consists of a curved surface, and furthermore a haze ratio or a ratio of a diffuse transmittance to a total transmittance as an index of unevenness of a substrate may be set at not less than 20% measured using a C light source. And thereby light trapping effect may effectively occur to improve performance of the thin film solar cell.
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申请公布号 |
US7781668(B2) |
申请公布日期 |
2010.08.24 |
申请号 |
US20050588708 |
申请日期 |
2005.03.15 |
申请人 |
KANEKA CORPORATION |
发明人 |
SASAKI TOSHIAKI;KOI YOHEI;TAWADA YUKO;YAMAMOTO KENJI |
分类号 |
H01L25/00;H01L31/0224;H01L31/0236;H01L31/0392 |
主分类号 |
H01L25/00 |
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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