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Solar cell substrate, thin-film solar cell, and multi-junction thin-film solar cell

机译：太阳能电池基板，薄膜太阳能电池和多结薄膜太阳能电池

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摘要

A solar cell substrate has irregularities on a surface which is in contact with a photo-electric conversion layer, and light is incident on the side of the irregularities. The height of the irregularities is set so that the root mean square height is in a range of 15 nm to 600 nm, and tan is in a range of 0.10 to 0.30, where is the angle of incline of the surface of the irregularities with respect to an average line of the irregularities. Light incident on the irregularities is scattered at the interface. This increases the optical path length and thus the quantity of light absorbed in the photo-electric conversion layer, resulting in improved efficiency. Additionally, the photo-electric conversion layer can be made thinner reducing deposit time and manufacturing cost. Further, collision of crystals is not incurred, thus preventing deterioration of photo-electric conversion efficiency which is caused by defects.

机译：太阳能电池基板在与光电转换层接触的表面上具有凹凸，并且光入射在凹凸的一侧。设置凹凸的高度，使得均方根高度在15 nm至600 nm的范围内，tan在0.10至0.30的范围内，其中凹凸的表面相对于到不规则行为的平均水平。入射在凹凸上的光在界面处散射。这增加了光程长度，从而增加了光电转换层中吸收的光量，从而提高了效率。另外，可以使光电转换层更薄，从而减少沉积时间和制造成本。此外，不会发生晶体碰撞，从而防止了由缺陷引起的光电转换效率的降低。

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公开/公告号US6787692B2

专利类型
公开/公告日2004-09-07

原文格式PDF
申请/专利权人 NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECHNOLOGY;SHARP KABUSHIKI KAISHA;MATSUDA AKIHISA;KONDO MICHIO;
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申请/专利号US20010984905
发明设计人 KENJI WADA;YOSHIYUKI NASUNO;MICHIO KONDO;AKIHISA MATSUDA;
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申请日2001-10-31
分类号H01L310/52;
国家 US
入库时间 2022-08-21 23:17:14

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