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In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Ca...

Yen-Tien Lu, Andrew Barron Orcid Logo

ACS Applied Materials & Interfaces, Volume: 7, Issue: 22, Pages: 11802 - 11814

Swansea University Author: Andrew Barron Orcid Logo

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DOI (Published version): 10.1021/acsami.5b01008

Abstract

Silicon solar cells with nanopore-type black silicon antireflection layers and self-aligned selective emitter are reported in which the b-Si structure is prepared without the traditional addition of a catalyst. The contact-assisted chemical etching (CACE) method is reported for the first time, in wh...

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Published in: ACS Applied Materials & Interfaces
Published: 2015
Online Access: http://pubs.acs.org/doi/abs/10.1021/acsami.5b01008
URI: https://cronfa.swan.ac.uk/Record/cronfa22193
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first_indexed 2015-06-27T02:06:57Z
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spelling 2016-06-15T15:17:46.5251935 v2 22193 2015-06-26 In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2015-06-26 CHEG Silicon solar cells with nanopore-type black silicon antireflection layers and self-aligned selective emitter are reported in which the b-Si structure is prepared without the traditional addition of a catalyst. The contact-assisted chemical etching (CACE) method is reported for the first time, in which the metal top contacts on silicon solar cell surfaces function as the catalysts for b-Si fabrication and the whole etching process can be done in minutes at room temperature. The CACE method is based on the metal-assisted chemical etching solution but without or metal precursor in the Si etchant (HF:H2O2:H2O), and the Au top contacts, or catalysts, are not removed from the solar cell surface after the etching. The effects of composition, concentration and time on the b-Si morphology, surface reflectivity, and solar cell efficiency have been investigated. Higher [HF] and [H2O2] with longer etching time cause collapse of the b-Si nanoporous structure and penetration of the p–n junctions, which are detrimental to the solar cell efficiency. The b-Si solar cell fabricated with the HF:H2O2:H2O volume ratio of 3:3:20 and a 3 min etch time shows the highest efficiency 8.99% along with a decrease of reflectivity from 36.1% to 12.6% compared to that of the nonetched Si solar cell. Journal Article ACS Applied Materials & Interfaces 7 22 11802 11814 31 12 2015 2015-12-31 10.1021/acsami.5b01008 http://pubs.acs.org/doi/abs/10.1021/acsami.5b01008 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2016-06-15T15:17:46.5251935 2015-06-26T15:43:42.9952258 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Yen-Tien Lu 1 Andrew Barron 0000-0002-2018-8288 2
title In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
spellingShingle In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
Andrew Barron
title_short In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
title_full In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
title_fullStr In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
title_full_unstemmed In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
title_sort In-Situ Fabrication of a Self-Aligned Selective Emitter Silicon Solar Cell Using the Gold Top Contacts To Facilitate the Synthesis of a Nanostructured Black Silicon Antireflective Layer Instead of an External Metal Nanoparticle Catalyst
author_id_str_mv 92e452f20936d688d36f91c78574241d
author_id_fullname_str_mv 92e452f20936d688d36f91c78574241d_***_Andrew Barron
author Andrew Barron
author2 Yen-Tien Lu
Andrew Barron
format Journal article
container_title ACS Applied Materials & Interfaces
container_volume 7
container_issue 22
container_start_page 11802
publishDate 2015
institution Swansea University
doi_str_mv 10.1021/acsami.5b01008
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
url http://pubs.acs.org/doi/abs/10.1021/acsami.5b01008
document_store_str 0
active_str 0
description Silicon solar cells with nanopore-type black silicon antireflection layers and self-aligned selective emitter are reported in which the b-Si structure is prepared without the traditional addition of a catalyst. The contact-assisted chemical etching (CACE) method is reported for the first time, in which the metal top contacts on silicon solar cell surfaces function as the catalysts for b-Si fabrication and the whole etching process can be done in minutes at room temperature. The CACE method is based on the metal-assisted chemical etching solution but without or metal precursor in the Si etchant (HF:H2O2:H2O), and the Au top contacts, or catalysts, are not removed from the solar cell surface after the etching. The effects of composition, concentration and time on the b-Si morphology, surface reflectivity, and solar cell efficiency have been investigated. Higher [HF] and [H2O2] with longer etching time cause collapse of the b-Si nanoporous structure and penetration of the p–n junctions, which are detrimental to the solar cell efficiency. The b-Si solar cell fabricated with the HF:H2O2:H2O volume ratio of 3:3:20 and a 3 min etch time shows the highest efficiency 8.99% along with a decrease of reflectivity from 36.1% to 12.6% compared to that of the nonetched Si solar cell.
published_date 2015-12-31T03:26:24Z
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score 11.013619

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