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Electronically tunable conductivity of a nanoporous Au–Fe alloy

Bansal, C. ; Sarkar, S. ; Mishra, A. K. ; Abraham, T. ; Lemier, C. ; Hahn, H. (2007):
Electronically tunable conductivity of a nanoporous Au–Fe alloy.
In: Scripta Materialia, 56 (8), pp. 705-708. Elsevier Science Publishing Company, ISSN 13596462,
[Article]

Abstract

A change of the DC electrical conductivity of a nanoporous Au0.75Fe0.25 alloy was observed when surface charge was induced on the nanomaterial by making it a working electrode in an electrochemical cell. Simultaneous voltammetry and conductivity measurements over several voltage cycles in the range −0.4 to +0.7 V showed a reversible change in conductivity of 1.3%. The variation of conductivity with induced charge is interpreted in terms of the Sommerfeld model for metallic conduction.

Item Type: Article
Erschienen: 2007
Creators: Bansal, C. ; Sarkar, S. ; Mishra, A. K. ; Abraham, T. ; Lemier, C. ; Hahn, H.
Title: Electronically tunable conductivity of a nanoporous Au–Fe alloy
Language: English
Abstract:

A change of the DC electrical conductivity of a nanoporous Au0.75Fe0.25 alloy was observed when surface charge was induced on the nanomaterial by making it a working electrode in an electrochemical cell. Simultaneous voltammetry and conductivity measurements over several voltage cycles in the range −0.4 to +0.7 V showed a reversible change in conductivity of 1.3%. The variation of conductivity with induced charge is interpreted in terms of the Sommerfeld model for metallic conduction.

Journal or Publication Title: Scripta Materialia
Journal volume: 56
Number: 8
Publisher: Elsevier Science Publishing Company
Uncontrolled Keywords: Tunable conductivity, Porous material, Electrical properties, Nanocrystalline microstructure, Electrochemistry
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 13 Feb 2013 10:31
Official URL: http://dx.doi.org/10.1016/j.scriptamat.2006.12.015
Identification Number: doi:10.1016/j.scriptamat.2006.12.015
Funders: This work was supported under the DST (India)–DAAD (Germany) Personnel Exchange Program 2005 and DST Project Grant No. SR/S5/NM-04/2003.
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