Schubert, Ina and Burr, Loic and Trautmann, Christina and Toimil-Molares, Maria Eugenia (2015):
Growth and morphological analysis of segmented AuAg alloy nanowires created by pulsed electrodeposition in ion-track etched membranes.
6, In: Beilstein Journal of Nanotechnology, pp. 1272-1280, ISSN 2190-4286, [Online-Edition: http://dx.doi.org/10.3762/bjnano.6.131],
[Article]
Abstract
Background: Multicomponent heterostructure nanowires and nanogaps are of great interest for applications in sensorics. Pulsed electrodeposition in ion-track etched polymer templates is a suitable method to synthesise segmented nanowires with segments consisting of two different types of materials. For a well-controlled synthesis process, detailed analysis of the deposition parameters and the size-distribution of the segmented wires is crucial.
Results: The fabrication of electrodeposited AuAg alloy nanowires and segmented Au-rich/Ag-rich/Au-rich nanowires with controlled composition and segment length in ion-track etched polymer templates was developed. Detailed analysis by cyclic voltammetry in ion-track membranes, energy-dispersive X-ray spectroscopy and scanning electron microscopy was performed to determine the dependency between the chosen potential and the segment composition. Additionally, we have dissolved the middle Ag-rich segments in order to create small nanogaps with controlled gap sizes. Annealing of the created structures allows us to influence their morphology.
Conclusion: AuAg alloy nanowires, segmented wires and nanogaps with controlled composition and size can be synthesised by electrodeposition in membranes, and are ideal model systems for investigation of surface plasmons.
| Item Type: | Article |
|---|---|
| Erschienen: | 2015 |
| Creators: | Schubert, Ina and Burr, Loic and Trautmann, Christina and Toimil-Molares, Maria Eugenia |
| Title: | Growth and morphological analysis of segmented AuAg alloy nanowires created by pulsed electrodeposition in ion-track etched membranes |
| Language: | English |
| Abstract: | Background: Multicomponent heterostructure nanowires and nanogaps are of great interest for applications in sensorics. Pulsed electrodeposition in ion-track etched polymer templates is a suitable method to synthesise segmented nanowires with segments consisting of two different types of materials. For a well-controlled synthesis process, detailed analysis of the deposition parameters and the size-distribution of the segmented wires is crucial. Results: The fabrication of electrodeposited AuAg alloy nanowires and segmented Au-rich/Ag-rich/Au-rich nanowires with controlled composition and segment length in ion-track etched polymer templates was developed. Detailed analysis by cyclic voltammetry in ion-track membranes, energy-dispersive X-ray spectroscopy and scanning electron microscopy was performed to determine the dependency between the chosen potential and the segment composition. Additionally, we have dissolved the middle Ag-rich segments in order to create small nanogaps with controlled gap sizes. Annealing of the created structures allows us to influence their morphology. Conclusion: AuAg alloy nanowires, segmented wires and nanogaps with controlled composition and size can be synthesised by electrodeposition in membranes, and are ideal model systems for investigation of surface plasmons. |
| Journal or Publication Title: | Beilstein Journal of Nanotechnology |
| Volume: | 6 |
| Uncontrolled Keywords: | AuAg alloy, cyclic voltammetry, electrodeposition, ion-track technology, nanogaps, segmented nanowires |
| 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: | 02 Jul 2015 08:48 |
| Official URL: | http://dx.doi.org/10.3762/bjnano.6.131 |
| Identification Number: | doi:10.3762/bjnano.6.131 |
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