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Thermal stability of electrodeposited platinum nanowires and morphological transformations at elevated temperatures

Rauber, Markus and Muench, Falk and Toimil-Molares, M. E. and Ensinger, Wolfgang (2012):
Thermal stability of electrodeposited platinum nanowires and morphological transformations at elevated temperatures.
23, In: Nanotechnology, (47), IOP Publishing, p. 475710, [Online-Edition: http://iopscience.iop.org/0957-4484/23/47/475710],
[Article]

Abstract

Pt nanowires were prepared by template electrodeposition using ion track etched polymer membranes and analysed with respect to their thermal stability. Driven by Rayleigh instability, the polycrystalline Pt nanostructures experienced structural transformations and finally fragmented into linear chains of nanospheres at temperatures much below the melting point of bulk Pt. Morphological changes were systematically studied by electron microscopy and compared with previously reported results on other metal nanowires and theoretical predictions. In addition, nanowires could readily be interconnected to two-dimensional assemblies by taking advantage of the rapid diffusion processes. This study will help to predict the durability of integrated nanowires and contributes to the understanding of thermal-induced transformations for polycrystalline nanowires.

Item Type: Article
Erschienen: 2012
Creators: Rauber, Markus and Muench, Falk and Toimil-Molares, M. E. and Ensinger, Wolfgang
Title: Thermal stability of electrodeposited platinum nanowires and morphological transformations at elevated temperatures
Language: English
Abstract:

Pt nanowires were prepared by template electrodeposition using ion track etched polymer membranes and analysed with respect to their thermal stability. Driven by Rayleigh instability, the polycrystalline Pt nanostructures experienced structural transformations and finally fragmented into linear chains of nanospheres at temperatures much below the melting point of bulk Pt. Morphological changes were systematically studied by electron microscopy and compared with previously reported results on other metal nanowires and theoretical predictions. In addition, nanowires could readily be interconnected to two-dimensional assemblies by taking advantage of the rapid diffusion processes. This study will help to predict the durability of integrated nanowires and contributes to the understanding of thermal-induced transformations for polycrystalline nanowires.

Journal or Publication Title: Nanotechnology
Volume: 23
Number: 47
Publisher: IOP Publishing
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 > Material Analytics
Date Deposited: 11 Nov 2012 11:34
Official URL: http://iopscience.iop.org/0957-4484/23/47/475710
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