Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Khan, Ehsan U. ; Neumann, R. (2008)
Tuning the Characteristics of Electrochemically Fabricated Gold Nanowires.
In: Journal of Nanoscience and Nanotechnology, 8 (11)
Article
Abstract
We have developed different electrochemical procedures for the production of gold nanowires with variable and controllable crystallographic and morphological properties using etched ion track templates. The texture of the nanowires is tuned by the variation of the electrodeposition parameters. Potentiostatic plating at low overvoltage provides strongly 〈110〉 textured wires for diameters below 100 nm. With the increase in diameter above 100 nm, this texture decreases and the signal from {111} planes becomes more pronounced. Under reverse pulse deposition conditions, 〈100〉 textured wires are generated. The growth mechanism is discussed in detail in terms of the surface energy minimum principle. In addition, wires are shaped in a reliable way from cylindrical to conical geometry by engineering the pore structure in the template.
| Item Type: | Article |
|---|---|
| Erschienen: | 2008 |
| Creators: | Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Khan, Ehsan U. ; Neumann, R. |
| Type of entry: | Bibliographie |
| Title: | Tuning the Characteristics of Electrochemically Fabricated Gold Nanowires |
| Language: | English |
| Date: | 1 November 2008 |
| Publisher: | American Scientific Publishers |
| Journal or Publication Title: | Journal of Nanoscience and Nanotechnology |
| Volume of the journal: | 8 |
| Issue Number: | 11 |
| URL / URN: | http://www.ingentaconnect.com/content/asp/jnn/2008/00000008/... |
| Abstract: | We have developed different electrochemical procedures for the production of gold nanowires with variable and controllable crystallographic and morphological properties using etched ion track templates. The texture of the nanowires is tuned by the variation of the electrodeposition parameters. Potentiostatic plating at low overvoltage provides strongly 〈110〉 textured wires for diameters below 100 nm. With the increase in diameter above 100 nm, this texture decreases and the signal from {111} planes becomes more pronounced. Under reverse pulse deposition conditions, 〈100〉 textured wires are generated. The growth mechanism is discussed in detail in terms of the surface energy minimum principle. In addition, wires are shaped in a reliable way from cylindrical to conical geometry by engineering the pore structure in the template. |
| Uncontrolled Keywords: | Electrodeposition; Gold,Nanowires; Template Method; Texture |
| 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: | 06 Jul 2009 13:56 |
| Last Modified: | 05 Mar 2013 09:20 |
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