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Electrochemical Synthesis of Bi1–xSbxNanowires with Simultaneous Control on Size, Composition, and Surface Roughness

Müller, Sven and Schötz, Christian and Picht, Oliver and Sigle, Wilfried and Kopold, Peter and Rauber, Markus and Alber, Ina and Neumann, Reinhard and Toimil-Molares, Maria E. (2012):
Electrochemical Synthesis of Bi1–xSbxNanowires with Simultaneous Control on Size, Composition, and Surface Roughness.
In: Crystal Growth & Design, ACS Publications, pp. 615-621, 12, (2), ISSN 1528-7483,
[Online-Edition: http://dx.doi.org/10.1021/cg200685c],
[Article]

Abstract

We present the synthesis of Bi1–xSbx nanowires with controlled composition between x = 0.05 and x = 0.40 over a wide range of diameters (20–100 nm) interesting for the investigation of the enhancement of thermoelectric efficiency via quantum size effects. We find that the relative concentration of Bi and Sb ions in the electrolyte, together with the deposition potential, determines the resulting nanowire composition. Morphology and composition were analyzed using X-ray diffraction, electron microscopy, and energy dispersive X-ray analysis. Two different templates were fabricated to enable the synthesis of nanowires with smooth and rough contour.

Item Type: Article
Erschienen: 2012
Creators: Müller, Sven and Schötz, Christian and Picht, Oliver and Sigle, Wilfried and Kopold, Peter and Rauber, Markus and Alber, Ina and Neumann, Reinhard and Toimil-Molares, Maria E.
Title: Electrochemical Synthesis of Bi1–xSbxNanowires with Simultaneous Control on Size, Composition, and Surface Roughness
Language: English
Abstract:

We present the synthesis of Bi1–xSbx nanowires with controlled composition between x = 0.05 and x = 0.40 over a wide range of diameters (20–100 nm) interesting for the investigation of the enhancement of thermoelectric efficiency via quantum size effects. We find that the relative concentration of Bi and Sb ions in the electrolyte, together with the deposition potential, determines the resulting nanowire composition. Morphology and composition were analyzed using X-ray diffraction, electron microscopy, and energy dispersive X-ray analysis. Two different templates were fabricated to enable the synthesis of nanowires with smooth and rough contour.

Journal or Publication Title: Crystal Growth & Design
Volume: 12
Number: 2
Publisher: ACS Publications
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 14 Jan 2013 09:52
Official URL: http://dx.doi.org/10.1021/cg200685c
Identification Number: doi:10.1021/cg200685c
Funders: We thank the Deutsche Forschungsgemeinschaft (DFG) for supporting this work within the priority program SPP 1386.
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