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

Hitoshi Sai; Yoshiaki Kanamori; Michio Kondo

doi:10.1063/1.3565249

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

Hitoshi Sai, Yoshiaki Kanamori, Michio Kondo

ENG - Robotics

Research output: Contribution to journal › Article › peer-review

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Abstract

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 μc-Si:H cells, in order to improve the spectral response in the infrared region while maintaining a high VO_C and F_F.

Original language	English
Article number	113502
Journal	Applied Physics Letters
Volume	98
Issue number	11
DOIs	https://doi.org/10.1063/1.3565249
Publication status	Published - 2011 Mar 14

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/1.3565249

Cite this

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title = "Flattened light-scattering substrate in thin film silicon solar cells for improved infrared response",

abstract = "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 μc-Si:H cells, in order to improve the spectral response in the infrared region while maintaining a high VOC and FF.",

author = "Hitoshi Sai and Yoshiaki Kanamori and Michio Kondo",

note = "Funding Information: This work was supported by NEDO under METI, Japan. A part of this work was conducted at the AIST Nano-Processing Facility, supported by “Nanotechnology Network Japan” of MEXT (Grant No. 07002019), Japan. The calculation results in this research were obtained using supercomputing resources at Information Synergy Center, Tohoku University.",

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AU - Sai, Hitoshi

AU - Kanamori, Yoshiaki

AU - Kondo, Michio

N1 - Funding Information: This work was supported by NEDO under METI, Japan. A part of this work was conducted at the AIST Nano-Processing Facility, supported by “Nanotechnology Network Japan” of MEXT (Grant No. 07002019), Japan. The calculation results in this research were obtained using supercomputing resources at Information Synergy Center, Tohoku University.

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N2 - 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 μc-Si:H cells, in order to improve the spectral response in the infrared region while maintaining a high VOC and FF.

AB - 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 μc-Si:H cells, in order to improve the spectral response in the infrared region while maintaining a high VOC and FF.

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

Abstract

ASJC Scopus subject areas

UN SDGs

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