Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface

Dip-pen nanolithography (DPN) in conjunction with wet chemical etching was used to synthesize a new class of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface. Ag nanostructures were prepared by depositing dot MHA features on Ag-coated Si/SiOx, followed by etching with ferri/fe...

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Main Authors: Mirkin, Chad A., Zhang, Hua, Jin, Rongchao
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2012
Subjects:
Online Access:https://hdl.handle.net/10356/95374
http://hdl.handle.net/10220/8616
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-953742020-06-01T10:26:38Z Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface Mirkin, Chad A. Zhang, Hua Jin, Rongchao School of Materials Science & Engineering DRNTU::Engineering::Materials Dip-pen nanolithography (DPN) in conjunction with wet chemical etching was used to synthesize a new class of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface. Ag nanostructures were prepared by depositing dot MHA features on Ag-coated Si/SiOx, followed by etching with ferri/ferrocyanide solution. When these Ag nanostructures are reacted with HAuCl4, electroless plating of Au occurs on the sidewalls of the silver features along with concomitant oxidation of the Ag. This results in the formation of novel open-ended, cylindrical Au−Ag alloy nanostructures. Insight into the mechanism for this process is provided. 2012-09-24T04:42:08Z 2019-12-06T19:13:41Z 2012-09-24T04:42:08Z 2019-12-06T19:13:41Z 2004 2004 Journal Article Zhang, H., Jin, R., & Mirkin, C. A. (2004). Synthesis of Open-Ended, Cylindrical Au−Ag Alloy Nanostructures on a Si/SiOx Surface. Nano Letters, 4(8), 1493-1495. 1530-6984 https://hdl.handle.net/10356/95374 http://hdl.handle.net/10220/8616 10.1021/nl0492281 en Nano letters © 2004 American Chemical Society.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Mirkin, Chad A.
Zhang, Hua
Jin, Rongchao
Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
description Dip-pen nanolithography (DPN) in conjunction with wet chemical etching was used to synthesize a new class of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface. Ag nanostructures were prepared by depositing dot MHA features on Ag-coated Si/SiOx, followed by etching with ferri/ferrocyanide solution. When these Ag nanostructures are reacted with HAuCl4, electroless plating of Au occurs on the sidewalls of the silver features along with concomitant oxidation of the Ag. This results in the formation of novel open-ended, cylindrical Au−Ag alloy nanostructures. Insight into the mechanism for this process is provided.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Mirkin, Chad A.
Zhang, Hua
Jin, Rongchao
format Article
author Mirkin, Chad A.
Zhang, Hua
Jin, Rongchao
author_sort Mirkin, Chad A.
title Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
title_short Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
title_full Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
title_fullStr Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
title_full_unstemmed Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
title_sort synthesis of open-ended, cylindrical au−ag alloy nanostructures on a si/siox surface
publishDate 2012
url https://hdl.handle.net/10356/95374
http://hdl.handle.net/10220/8616
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