Citation: Hui Zhou, Lan Jin, Wei Xu. New approach to fabricate nanoporous gold film[J]. Chinese Chemical Letters, ;2007, 18(3): 365-368. doi: 10.1016/j.cclet.2007.01.001 shu

New approach to fabricate nanoporous gold film

Department of Materials Science, Fudan University, Shanghai 200433, China

Received Date: 28 June 2006

Fund Project: No. 0452nm087).This work was supported by the National Natural Science Foundation of China (No. 60171008) and Shanghai Science and Technology Committee (No. 0214nm005

A simple preparation of ultrathin nanoporous gold film was described. Copper and gold were used to fabricate Cu-Au alloy films through vacuum deposition. The formation of nanoporous gold films from the alloy films involved thermal process and chemical etch by hydrochloric acid or by nitric acid. The free-standing nanoporous gold films have been analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectrometer (XPS) and surface-enhanced Raman scattering (SERS). It was noted that the nanoporous gold film etched by hydrochloric acid is uniform with a cover of fog-like moieties.
- Nanopore,
- Gold film,
- Cu-Au alloy,
- Fog-like metal,
- Chemical etch
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