Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method
One of the key issues of thin-film silicon solar cells is their limited optical absorptance due to the thin absorber layer and the low absorption coefficient for near-infrared wavelengths. Texturing of one or more interfaces in the layered structure of these cells is an important technique to scatte...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/842891 |
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| author | Nasim Sahraei Selvaraj Venkataraj Premachandran Vayalakkara Armin G. Aberle |
| author_facet | Nasim Sahraei Selvaraj Venkataraj Premachandran Vayalakkara Armin G. Aberle |
| author_sort | Nasim Sahraei |
| collection | DOAJ |
| description | One of the key issues of thin-film silicon solar cells is their limited optical absorptance due to the thin absorber layer and the low absorption coefficient for near-infrared wavelengths. Texturing of one or more interfaces in the layered structure of these cells is an important technique to scatter light and enhance the optical pathlength. This in turn enhances the optical absorption of the solar radiation in the absorber layer and improves the solar cell efficiency. In this paper we investigate the effects of textured glass superstrate surfaces on the optical absorptance of intrinsic a-Si:H films and a-Si:H p-i-n thin-film solar cell precursors deposited onto them. The silicon-facing surface of the glass sheets was textured with the aluminium-induced glass texturing method (AIT method). Absorption in both intrinsic silicon films and solar cell precursor structures is found to increase strongly due to the textured glass superstrate. The increased absorption due to the AIT glass opens up the possibility to reduce the absorber layer thickness of a-Si:H solar cells. |
| format | Article |
| id | doaj-art-7950912c96cc467887a3d543ba410bcd |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-7950912c96cc467887a3d543ba410bcd2025-02-03T06:13:52ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/842891842891Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing MethodNasim Sahraei0Selvaraj Venkataraj1Premachandran Vayalakkara2Armin G. Aberle3Solar Energy Research Institute of Singapore, National University of Singapore, 117574, SingaporeSolar Energy Research Institute of Singapore, National University of Singapore, 117574, SingaporeSolar Energy Research Institute of Singapore, National University of Singapore, 117574, SingaporeSolar Energy Research Institute of Singapore, National University of Singapore, 117574, SingaporeOne of the key issues of thin-film silicon solar cells is their limited optical absorptance due to the thin absorber layer and the low absorption coefficient for near-infrared wavelengths. Texturing of one or more interfaces in the layered structure of these cells is an important technique to scatter light and enhance the optical pathlength. This in turn enhances the optical absorption of the solar radiation in the absorber layer and improves the solar cell efficiency. In this paper we investigate the effects of textured glass superstrate surfaces on the optical absorptance of intrinsic a-Si:H films and a-Si:H p-i-n thin-film solar cell precursors deposited onto them. The silicon-facing surface of the glass sheets was textured with the aluminium-induced glass texturing method (AIT method). Absorption in both intrinsic silicon films and solar cell precursor structures is found to increase strongly due to the textured glass superstrate. The increased absorption due to the AIT glass opens up the possibility to reduce the absorber layer thickness of a-Si:H solar cells.http://dx.doi.org/10.1155/2014/842891 |
| spellingShingle | Nasim Sahraei Selvaraj Venkataraj Premachandran Vayalakkara Armin G. Aberle Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method International Journal of Photoenergy |
| title | Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method |
| title_full | Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method |
| title_fullStr | Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method |
| title_full_unstemmed | Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method |
| title_short | Optical Absorption Enhancement in Amorphous Silicon Films and Solar Cell Precursors Using the Aluminum-Induced Glass Texturing Method |
| title_sort | optical absorption enhancement in amorphous silicon films and solar cell precursors using the aluminum induced glass texturing method |
| url | http://dx.doi.org/10.1155/2014/842891 |
| work_keys_str_mv | AT nasimsahraei opticalabsorptionenhancementinamorphoussiliconfilmsandsolarcellprecursorsusingthealuminuminducedglasstexturingmethod AT selvarajvenkataraj opticalabsorptionenhancementinamorphoussiliconfilmsandsolarcellprecursorsusingthealuminuminducedglasstexturingmethod AT premachandranvayalakkara opticalabsorptionenhancementinamorphoussiliconfilmsandsolarcellprecursorsusingthealuminuminducedglasstexturingmethod AT armingaberle opticalabsorptionenhancementinamorphoussiliconfilmsandsolarcellprecursorsusingthealuminuminducedglasstexturingmethod |