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Two-step approach for the nanofabrication of highly ordered ultra-long porous gold nanowires with an adjustable porosity for SERS-based sensors

Chauvin, A. and Delacote, C. and Molina-Luna, Leopoldo and Boujtita, M. and Thiry, D. and Du, K. and Ding, J. and Choi, C.-H. and Humbert, B. and Mevellec, J.-Y. and Tessier, P. Y. and El Mel, A.-A. Laudon, Matthew and Romanowicz, Bart (eds.) (2016):
Two-step approach for the nanofabrication of highly ordered ultra-long porous gold nanowires with an adjustable porosity for SERS-based sensors.
In: TechConnect Briefs 2016, Danville, CA, U.S.A., TechConnect, pp. 19-22, [Book Section]

Abstract

Recently, nanoporous gold has been pointed out as a promising candidate for the development of SERS-based sensors for the detection of environmental toxins and small molecules [1]. One way to improve the detection ability of such sensors is by engineering the porosity and shape of nanoporous material. In this work we report on a versatile two-step approach for the synthesis of porous nanowires involving plasma deposition of gold-copper alloy on a nanograted substrate followed by a selective electrochemical etching. The relevance of the approach is its ability to prepare highly ordered ultra-long porous gold nanowires with an adjustable porosity and a length up to the macroscale. The resulting gold porous nanowire exhibits a very high roughness and high specific surface area suitable for highly sensitive detection of small molecules by SERS. References: [1] L. Zhang, H. Chang, A. Hirata, H. Wu,Q.-K. Xue and M. Chen, ACS Nano 7, 4595 (2013)

Item Type: Book Section
Erschienen: 2016
Editors: Laudon, Matthew and Romanowicz, Bart
Creators: Chauvin, A. and Delacote, C. and Molina-Luna, Leopoldo and Boujtita, M. and Thiry, D. and Du, K. and Ding, J. and Choi, C.-H. and Humbert, B. and Mevellec, J.-Y. and Tessier, P. Y. and El Mel, A.-A.
Title: Two-step approach for the nanofabrication of highly ordered ultra-long porous gold nanowires with an adjustable porosity for SERS-based sensors
Language: English
Abstract:

Recently, nanoporous gold has been pointed out as a promising candidate for the development of SERS-based sensors for the detection of environmental toxins and small molecules [1]. One way to improve the detection ability of such sensors is by engineering the porosity and shape of nanoporous material. In this work we report on a versatile two-step approach for the synthesis of porous nanowires involving plasma deposition of gold-copper alloy on a nanograted substrate followed by a selective electrochemical etching. The relevance of the approach is its ability to prepare highly ordered ultra-long porous gold nanowires with an adjustable porosity and a length up to the macroscale. The resulting gold porous nanowire exhibits a very high roughness and high specific surface area suitable for highly sensitive detection of small molecules by SERS. References: [1] L. Zhang, H. Chang, A. Hirata, H. Wu,Q.-K. Xue and M. Chen, ACS Nano 7, 4595 (2013)

Title of Book: TechConnect Briefs 2016
Volume: 4
Place of Publication: Danville, CA, U.S.A.
Publisher: TechConnect
ISBN: 9780997511734
Uncontrolled Keywords: gold, nanowire, porous, sers
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Advanced Electron Microscopy (aem)
Date Deposited: 10 Dec 2018 09:49
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