Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology
Non-hydrogenated amorphous-silicon films were deposited on glass substrates by Radio Frequency magnetron sputtering with the aim of being used as precursor of a low-cost absorber to replace the conventional silicon absorber in solar cells. Two Serie of samples were deposited varying the substrate te...
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2021
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oai:doaj.org-article:e85af9e050694fc7bafb0a38f10882e22021-11-11T18:06:29ZSputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology10.3390/ma142165501996-1944https://doaj.org/article/e85af9e050694fc7bafb0a38f10882e22021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6550https://doaj.org/toc/1996-1944Non-hydrogenated amorphous-silicon films were deposited on glass substrates by Radio Frequency magnetron sputtering with the aim of being used as precursor of a low-cost absorber to replace the conventional silicon absorber in solar cells. Two Serie of samples were deposited varying the substrate temperature and the working gas pressure, ranged from 0.7 to 4.5 Pa. The first Serie was deposited at room temperature, and the second one, at 325 °C. Relatively high deposition rates above 10 Å/s were reached by varying both deposition temperature and working Argon gas pressure to ensure high manufacturing rates. After deposition, the precursor films were treated with a continuous-wave diode laser to achieve a crystallized material considered as the alternative light absorber. Firstly, the structural and optical properties of non-hydrogenated amorphous silicon precursor films were investigated by Raman spectroscopy, atomic force microscopy, X-ray diffraction, reflectance, and transmittance, respectively. Structural changes were observed in the as-deposited films at room temperature, suggesting an orderly structure within an amorphous silicon matrix; meanwhile, the films deposited at higher temperature pointed out an amorphous structure. Lastly, the effect of the precursor material’s deposition conditions, and the laser parameters used in the crystallization process on the quality and properties of the subsequent crystallized material was evaluated. The results showed a strong influence of deposition conditions used in the amorphous silicon precursor.Susana FernándezJ. Javier GandíaElías SaugarMª Belén Gómez-ManceboDavid CanteliCarlos MolpeceresMDPI AGarticlenon-hydrogenated amorphous siliconalternative light absorbersmagnetron sputteringlow-cost processingphotovoltaic technologyTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6550, p 6550 (2021) |
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non-hydrogenated amorphous silicon alternative light absorbers magnetron sputtering low-cost processing photovoltaic technology Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
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non-hydrogenated amorphous silicon alternative light absorbers magnetron sputtering low-cost processing photovoltaic technology Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Susana Fernández J. Javier Gandía Elías Saugar Mª Belén Gómez-Mancebo David Canteli Carlos Molpeceres Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology |
description |
Non-hydrogenated amorphous-silicon films were deposited on glass substrates by Radio Frequency magnetron sputtering with the aim of being used as precursor of a low-cost absorber to replace the conventional silicon absorber in solar cells. Two Serie of samples were deposited varying the substrate temperature and the working gas pressure, ranged from 0.7 to 4.5 Pa. The first Serie was deposited at room temperature, and the second one, at 325 °C. Relatively high deposition rates above 10 Å/s were reached by varying both deposition temperature and working Argon gas pressure to ensure high manufacturing rates. After deposition, the precursor films were treated with a continuous-wave diode laser to achieve a crystallized material considered as the alternative light absorber. Firstly, the structural and optical properties of non-hydrogenated amorphous silicon precursor films were investigated by Raman spectroscopy, atomic force microscopy, X-ray diffraction, reflectance, and transmittance, respectively. Structural changes were observed in the as-deposited films at room temperature, suggesting an orderly structure within an amorphous silicon matrix; meanwhile, the films deposited at higher temperature pointed out an amorphous structure. Lastly, the effect of the precursor material’s deposition conditions, and the laser parameters used in the crystallization process on the quality and properties of the subsequent crystallized material was evaluated. The results showed a strong influence of deposition conditions used in the amorphous silicon precursor. |
format |
article |
author |
Susana Fernández J. Javier Gandía Elías Saugar Mª Belén Gómez-Mancebo David Canteli Carlos Molpeceres |
author_facet |
Susana Fernández J. Javier Gandía Elías Saugar Mª Belén Gómez-Mancebo David Canteli Carlos Molpeceres |
author_sort |
Susana Fernández |
title |
Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology |
title_short |
Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology |
title_full |
Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology |
title_fullStr |
Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology |
title_full_unstemmed |
Sputtered Non-Hydrogenated Amorphous Silicon as Alternative Absorber for Silicon Photovoltaic Technology |
title_sort |
sputtered non-hydrogenated amorphous silicon as alternative absorber for silicon photovoltaic technology |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/e85af9e050694fc7bafb0a38f10882e2 |
work_keys_str_mv |
AT susanafernandez sputterednonhydrogenatedamorphoussiliconasalternativeabsorberforsiliconphotovoltaictechnology AT jjaviergandia sputterednonhydrogenatedamorphoussiliconasalternativeabsorberforsiliconphotovoltaictechnology AT eliassaugar sputterednonhydrogenatedamorphoussiliconasalternativeabsorberforsiliconphotovoltaictechnology AT mabelengomezmancebo sputterednonhydrogenatedamorphoussiliconasalternativeabsorberforsiliconphotovoltaictechnology AT davidcanteli sputterednonhydrogenatedamorphoussiliconasalternativeabsorberforsiliconphotovoltaictechnology AT carlosmolpeceres sputterednonhydrogenatedamorphoussiliconasalternativeabsorberforsiliconphotovoltaictechnology |
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