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Microstructure evolution in nanoporous gold thin films made from sputter-deposited precursors.

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Title: Microstructure evolution in nanoporous gold thin films made from sputter-deposited precursors.
Authors: Gwak, Eun-Ji1, Kang, Na-Ri1, Baek, Un Bong2, Lee, Hae Moo2, Nahm, Seung Hoon2, Kim, Ju-Young1,3 juyoung@unist.ac.kr
Source: Scripta Materialia. Nov2013, Vol. 69 Issue 10, p720-723. 4p.
Subjects: Microstructure, Nanoporous materials, Gold films, Magnetron sputtering, Microfabrication, Thickness measurement
Abstract: We fabricate almost crack-free 1.5μm thick nanoporous gold thin films using free-corrosion dealloying and transfer processes from sputter-deposited precursors. By controlling the temperature and the concentration of the nitric acid solution during free-corrosion dealloying, we obtain ligament sizes in nanoporous gold between 22 and 155nm. We investigate the effects of dissolution rate of Ag atoms, surface diffusivity of Au atoms and formation of Ag oxide on nanoporosity evolution. [ABSTRACT FROM AUTHOR]
Copyright of Scripta Materialia is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 90313754
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Microstructure evolution in nanoporous gold thin films made from sputter-deposited precursors.
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  Data: <searchLink fieldCode="AR" term="%22Gwak%2C+Eun-Ji%22">Gwak, Eun-Ji</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kang%2C+Na-Ri%22">Kang, Na-Ri</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Baek%2C+Un+Bong%22">Baek, Un Bong</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Hae+Moo%22">Lee, Hae Moo</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Nahm%2C+Seung+Hoon%22">Nahm, Seung Hoon</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kim%2C+Ju-Young%22">Kim, Ju-Young</searchLink><relatesTo>1,3</relatesTo><i> juyoung@unist.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Scripta+Materialia%22">Scripta Materialia</searchLink>. Nov2013, Vol. 69 Issue 10, p720-723. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoporous+materials%22">Nanoporous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Gold+films%22">Gold films</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetron+sputtering%22">Magnetron sputtering</searchLink><br /><searchLink fieldCode="DE" term="%22Microfabrication%22">Microfabrication</searchLink><br /><searchLink fieldCode="DE" term="%22Thickness+measurement%22">Thickness measurement</searchLink>
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  Label: Abstract
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  Data: We fabricate almost crack-free 1.5μm thick nanoporous gold thin films using free-corrosion dealloying and transfer processes from sputter-deposited precursors. By controlling the temperature and the concentration of the nitric acid solution during free-corrosion dealloying, we obtain ligament sizes in nanoporous gold between 22 and 155nm. We investigate the effects of dissolution rate of Ag atoms, surface diffusivity of Au atoms and formation of Ag oxide on nanoporosity evolution. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Scripta Materialia is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.scriptamat.2013.08.010
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Nanoporous materials
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      – SubjectFull: Gold films
        Type: general
      – SubjectFull: Magnetron sputtering
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      – SubjectFull: Microfabrication
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      – SubjectFull: Thickness measurement
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              Text: Nov2013
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