Flattened light-scattering substrate in thin film silicon solar cells for improved infrared response

被引：69

作者：

Sai, Hitoshi ^{[1
]}

Kanamori, Yoshiaki ^{[2
]}

Kondo, Michio ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba, Ibaraki 3058568, Japan

[2] Tohoku Univ, Grad Sch Engn, Aobo Ku, Sendai, Miyagi 9808579, Japan

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 11期

关键词：

D O I：

10.1063/1.3565249

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Surface texturing is a technique commonly used to enhance light absorption in thin film silicon solar cells; it should be noted that highly textured substrates often induce structural defects in the active layer, which deteriorates the photovoltaic performance. In this paper, we propose a flattened light-scattering substrate (FLiSS) with a large refractive index contrast in plane as an approach to overcome this trade-off. A FLiSS composed of a two-dimensional ZnO grating and a Ag reflector is applied to mu c-Si:H cells, in order to improve the spectral response in the infrared region while maintaining a high V(OC) and FF. (C) 2011 American Institute of Physics. [doi:10.1063/1.3565249]

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