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Fabrication of black silicon via metal-assisted chemical etching-A review

The metal-assisted chemical etching (MACE) technique is commonly employed for texturing the wafer surfaces when fabricating black silicon (BSi) solar cells and is considered to be a potential technique to improve the efficiency of traditional Si-based solar cells. This article aims to review the MAC...

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Main Authors:	Arafat, Mohammad Yasir, Islam, Mohammad Aminul, Bin Mahmood, Ahmad Wafi, Abdullah, Fairuz, Nur-E-Alam, Mohammad, Kiong, Tiong Sieh, Amin, Nowshad
Format:	Article
Published:	MDPI 2021
Subjects:	GE Environmental Sciences QH Natural history
Online Access:	http://eprints.um.edu.my/28685/
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spelling	my.um.eprints.286852022-04-12T04:38:38Z http://eprints.um.edu.my/28685/ Fabrication of black silicon via metal-assisted chemical etching-A review Arafat, Mohammad Yasir Islam, Mohammad Aminul Bin Mahmood, Ahmad Wafi Abdullah, Fairuz Nur-E-Alam, Mohammad Kiong, Tiong Sieh Amin, Nowshad GE Environmental Sciences QH Natural history The metal-assisted chemical etching (MACE) technique is commonly employed for texturing the wafer surfaces when fabricating black silicon (BSi) solar cells and is considered to be a potential technique to improve the efficiency of traditional Si-based solar cells. This article aims to review the MACE technique along with its mechanism for Ag-, Cu- and Ni-assisted etching. Primarily, several essential aspects of the fabrication of BSi are discussed, including chemical reaction, etching direction, mass transfer, and the overall etching process of the MACE method. Thereafter, three metal catalysts (Ag, Cu, and Ni) are critically analyzed to identify their roles in producing cost-effective and sustainable BSi solar cells with higher quality and efficiency. The conducted study revealed that Ag-etched BSi wafers are more suitable for the growth of higher quality and efficiency Si solar cells compared to Cu- and Ni-etched BSi wafers. However, both Cu and Ni seem to be more cost-effective and more appropriate for the mass production of BSi solar cells than Ag-etched wafers. Meanwhile, the Ni-assisted chemical etching process takes a longer time than Cu but the Ni-etched BSi solar cells possess enhanced light absorption capacity and lower activity in terms of the dissolution and oxidation process than Cu-etched BSi solar cells. MDPI 2021-10 Article PeerReviewed Arafat, Mohammad Yasir and Islam, Mohammad Aminul and Bin Mahmood, Ahmad Wafi and Abdullah, Fairuz and Nur-E-Alam, Mohammad and Kiong, Tiong Sieh and Amin, Nowshad (2021) Fabrication of black silicon via metal-assisted chemical etching-A review. Sustainability, 13 (19). ISSN 2071-1050, DOI https://doi.org/10.3390/su131910766 <https://doi.org/10.3390/su131910766>. 10.3390/su131910766
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	GE Environmental Sciences QH Natural history
spellingShingle	GE Environmental Sciences QH Natural history Arafat, Mohammad Yasir Islam, Mohammad Aminul Bin Mahmood, Ahmad Wafi Abdullah, Fairuz Nur-E-Alam, Mohammad Kiong, Tiong Sieh Amin, Nowshad Fabrication of black silicon via metal-assisted chemical etching-A review
description	The metal-assisted chemical etching (MACE) technique is commonly employed for texturing the wafer surfaces when fabricating black silicon (BSi) solar cells and is considered to be a potential technique to improve the efficiency of traditional Si-based solar cells. This article aims to review the MACE technique along with its mechanism for Ag-, Cu- and Ni-assisted etching. Primarily, several essential aspects of the fabrication of BSi are discussed, including chemical reaction, etching direction, mass transfer, and the overall etching process of the MACE method. Thereafter, three metal catalysts (Ag, Cu, and Ni) are critically analyzed to identify their roles in producing cost-effective and sustainable BSi solar cells with higher quality and efficiency. The conducted study revealed that Ag-etched BSi wafers are more suitable for the growth of higher quality and efficiency Si solar cells compared to Cu- and Ni-etched BSi wafers. However, both Cu and Ni seem to be more cost-effective and more appropriate for the mass production of BSi solar cells than Ag-etched wafers. Meanwhile, the Ni-assisted chemical etching process takes a longer time than Cu but the Ni-etched BSi solar cells possess enhanced light absorption capacity and lower activity in terms of the dissolution and oxidation process than Cu-etched BSi solar cells.
format	Article
author	Arafat, Mohammad Yasir Islam, Mohammad Aminul Bin Mahmood, Ahmad Wafi Abdullah, Fairuz Nur-E-Alam, Mohammad Kiong, Tiong Sieh Amin, Nowshad
author_facet	Arafat, Mohammad Yasir Islam, Mohammad Aminul Bin Mahmood, Ahmad Wafi Abdullah, Fairuz Nur-E-Alam, Mohammad Kiong, Tiong Sieh Amin, Nowshad
author_sort	Arafat, Mohammad Yasir
title	Fabrication of black silicon via metal-assisted chemical etching-A review
title_short	Fabrication of black silicon via metal-assisted chemical etching-A review
title_full	Fabrication of black silicon via metal-assisted chemical etching-A review
title_fullStr	Fabrication of black silicon via metal-assisted chemical etching-A review
title_full_unstemmed	Fabrication of black silicon via metal-assisted chemical etching-A review
title_sort	fabrication of black silicon via metal-assisted chemical etching-a review
publisher	MDPI
publishDate	2021
url	http://eprints.um.edu.my/28685/
_version_	1735409570001453056
score	13.211869

Fabrication of black silicon via metal-assisted chemical etching-A review

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