发明名称 |
Concentrator photovoltaic device |
摘要 |
A concentrator photovoltaic device includes: an optical concentrator; a solar battery cell; a homogenizer; a sealant; and a light transmission preventing layer. The homogenizer has a trapezoidal shape in which a sectional area at the optical concentrator side is larger than a sectional area at the solar battery cell side, a relationship of nh>nf>nt is satisfied among a refractive index nh of the homogenizer, a refractive index nf of the sealant, and a refractive index nt of the light transmission preventing layer, a thickness (H) of the light transmission preventing layer is equal to or larger than 0.1 mm and equal to or smaller than 1.2 mm, and a relationship of 0.5≦b/a<1.0 is satisfied between a height (b) of the light transmission preventing layer and a height (a) of the sealant at a position where the light transmission preventing layer is formed. |
申请公布号 |
US8748737(B2) |
申请公布日期 |
2014.06.10 |
申请号 |
US201113110531 |
申请日期 |
2011.05.18 |
申请人 |
Daido Tokushuko Kabushiki Kaisha |
发明人 |
Nagai Hirokazu;Nakatani Tomokazu;Tokuyasu Daichi |
分类号 |
H01L31/00 |
主分类号 |
H01L31/00 |
代理机构 |
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代理人 |
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主权项 |
1. A concentrator photovoltaic device comprising:
an optical concentrator for concentrating sunlight; a solar battery cell; a homogenizer which is provided above the solar battery cell such that a bottom surface thereof faces the solar battery cell and which guides sunlight concentrated by the optical concentrator to the solar battery cell; a sealant which covers a side surface of a lower portion of the homogenizer and the solar battery cell; and a light transmission preventing layer provided between the sealant and the homogenizer and integrally formed on a lower side surface and a bottom surface of the homogenizer, wherein the homogenizer has a trapezoidal shape in which a sectional area at the optical concentrator side is larger than a sectional area at the solar battery cell side, a relationship of nt>nf>nt is satisfied among a refractive index nh of the homogenizer, a refractive index nf of the sealant, and a refractive index nt of the light transmission preventing layer, a thickness (H) of the light transmission preventing layer is equal to or larger than 0.1 mm and equal to or smaller than 1.2 mm, and a relationship of 0.5≦b/a<1.0 is satisfied between a height (b) of the light transmission preventing layer which is defined as the distance between a bottom edge of the homogenizer and a top most edge of the light transmission preventing layer and a height (a) of the sealant which is defined as the distance between the bottom edge of the homogenizer and a top most edge of the sealant.
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地址 |
Nagoya, Aichi JP |