Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells

In this study, metal films are fabricated by using an in-line reactive direct current magnetron sputtering system. The aluminum–titanium (AlTi) back contacts are prepared by changing the pressure from 10 mTorr to 25 mTorr. The optical, electrical and structural properties of the metal back contacts...

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Main Authors: Hsin-Yu Wu, Chia-Hsun Hsu, Shui-Yang Lien, Yeu-Long Jiang
Format: Article
Language:English
Published: MDPI AG 2016-11-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/9/11/975
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author Hsin-Yu Wu
Chia-Hsun Hsu
Shui-Yang Lien
Yeu-Long Jiang
author_facet Hsin-Yu Wu
Chia-Hsun Hsu
Shui-Yang Lien
Yeu-Long Jiang
author_sort Hsin-Yu Wu
collection DOAJ
description In this study, metal films are fabricated by using an in-line reactive direct current magnetron sputtering system. The aluminum–titanium (AlTi) back contacts are prepared by changing the pressure from 10 mTorr to 25 mTorr. The optical, electrical and structural properties of the metal back contacts are investigated. The solar cells with the AlTi had lower contact resistance than those with the silver (Ag) back contact, resulting in a higher fill factor. The AlTi contact can achieve a solar cell conversion efficiency as high as that obtained from the Ag contact. These findings encourage the potential adoption of AlTi films as an alternative back contact to silver for silicon thin-film solar cells.
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spelling doaj.art-11bf5f78585c4227819fcb9a93c0045b2022-12-22T04:23:25ZengMDPI AGEnergies1996-10732016-11-0191197510.3390/en9110975en9110975Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar CellsHsin-Yu Wu0Chia-Hsun Hsu1Shui-Yang Lien2Yeu-Long Jiang3Graduate Institute of Optoelectronic Engineering and Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Materials Science and Engineering, Da-Yeh University, Changhua 51591, TaiwanDepartment of Materials Science and Engineering, Da-Yeh University, Changhua 51591, TaiwanGraduate Institute of Optoelectronic Engineering and Department of Electrical Engineering, National Chung Hsing University, Taichung 40227, TaiwanIn this study, metal films are fabricated by using an in-line reactive direct current magnetron sputtering system. The aluminum–titanium (AlTi) back contacts are prepared by changing the pressure from 10 mTorr to 25 mTorr. The optical, electrical and structural properties of the metal back contacts are investigated. The solar cells with the AlTi had lower contact resistance than those with the silver (Ag) back contact, resulting in a higher fill factor. The AlTi contact can achieve a solar cell conversion efficiency as high as that obtained from the Ag contact. These findings encourage the potential adoption of AlTi films as an alternative back contact to silver for silicon thin-film solar cells.http://www.mdpi.com/1996-1073/9/11/975silicon thin-film solar cellsaluminum–titanium (AlTi) alloycontact resistance
spellingShingle Hsin-Yu Wu
Chia-Hsun Hsu
Shui-Yang Lien
Yeu-Long Jiang
Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells
Energies
silicon thin-film solar cells
aluminum–titanium (AlTi) alloy
contact resistance
title Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells
title_full Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells
title_fullStr Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells
title_full_unstemmed Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells
title_short Aluminum–Titanium Alloy Back Contact Reducing Production Cost of Silicon Thin-Film Solar Cells
title_sort aluminum titanium alloy back contact reducing production cost of silicon thin film solar cells
topic silicon thin-film solar cells
aluminum–titanium (AlTi) alloy
contact resistance
url http://www.mdpi.com/1996-1073/9/11/975
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