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Structural and compositional characterization of Bi1−xSbx nanowire arrays grown by pulsed deposition to improve growth uniformity

Cassinelli, M. and Müller, S. and Aabdin, Z. and Peranio, N. and Eibl, O. and Trautmann, C. and Toimil-Molares, M. E. (2015):
Structural and compositional characterization of Bi1−xSbx nanowire arrays grown by pulsed deposition to improve growth uniformity.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier Science BV, Netherlands, pp. 668-674, 365, ISSN 0168583X, [Online-Edition: http://dx.doi.org/10.1016/j.nimb.2015.07.107],
[Article]

Abstract

Arrays of Bi1-xSbx nanowire with various compositions (0 <= x <= 1) are grown in etched ion-track membranes by pulsed electrochemical deposition. Nanowires of diameter from 130 nm down to 18 nm are characterized by means of X-ray diffraction and high-resolution electron microscopy combined with electron diffraction and energy dispersive X-ray analysis. Compared to potentiostatic deposition, the pulsed synthesis method leads to a more uniform growth and higher filling rate of the wires across the entire template. By tuning the deposition parameters, we demonstrate excellent control over the wire composition and crystallographic orientation. The deposition process presented facilitates the development of future nanowire-based thermoelectric sensors, which are expected to exhibit a higher sensitivity and a faster response compared to thin film sensors. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Article
Erschienen: 2015
Creators: Cassinelli, M. and Müller, S. and Aabdin, Z. and Peranio, N. and Eibl, O. and Trautmann, C. and Toimil-Molares, M. E.
Title: Structural and compositional characterization of Bi1−xSbx nanowire arrays grown by pulsed deposition to improve growth uniformity
Language: English
Abstract:

Arrays of Bi1-xSbx nanowire with various compositions (0 <= x <= 1) are grown in etched ion-track membranes by pulsed electrochemical deposition. Nanowires of diameter from 130 nm down to 18 nm are characterized by means of X-ray diffraction and high-resolution electron microscopy combined with electron diffraction and energy dispersive X-ray analysis. Compared to potentiostatic deposition, the pulsed synthesis method leads to a more uniform growth and higher filling rate of the wires across the entire template. By tuning the deposition parameters, we demonstrate excellent control over the wire composition and crystallographic orientation. The deposition process presented facilitates the development of future nanowire-based thermoelectric sensors, which are expected to exhibit a higher sensitivity and a faster response compared to thin film sensors. (C) 2015 Elsevier B.V. All rights reserved.

Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume: 365
Publisher: Elsevier Science BV, Netherlands
Uncontrolled Keywords: Nanowires, Thermoelectrics, Ion track, Electrodeposition, Bismuth antimony
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 29 Feb 2016 12:59
Official URL: http://dx.doi.org/10.1016/j.nimb.2015.07.107
Identification Number: doi:10.1016/j.nimb.2015.07.107
Funders: We thank the Deutsche Forschungsgemeinschaft (DFG) for financial support within the priority program SPP 1386., M.C. thanks the Helmholtz Graduate School for Hadron and Ion Research "HGS-HIRe" for financial support.
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