Bibliographic Details
| Title: |
Microstructure evolution in nanoporous gold thin films made from sputter-deposited precursors. |
| Authors: |
Gwak, Eun-Ji1, Kang, Na-Ri1, Baek, Un Bong2, Lee, Hae Moo2, Nahm, Seung Hoon2, Kim, Ju-Young1,3 juyoung@unist.ac.kr |
| Source: |
Scripta Materialia. Nov2013, Vol. 69 Issue 10, p720-723. 4p. |
| Subjects: |
Microstructure, Nanoporous materials, Gold films, Magnetron sputtering, Microfabrication, Thickness measurement |
| Abstract: |
We fabricate almost crack-free 1.5μm thick nanoporous gold thin films using free-corrosion dealloying and transfer processes from sputter-deposited precursors. By controlling the temperature and the concentration of the nitric acid solution during free-corrosion dealloying, we obtain ligament sizes in nanoporous gold between 22 and 155nm. We investigate the effects of dissolution rate of Ag atoms, surface diffusivity of Au atoms and formation of Ag oxide on nanoporosity evolution. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
