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Self-Assembly of Au-Ag Alloy Nanoparticles by Thermal Annealing

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Abstract:

Hemispherical Au-Ag alloy nanoparticles were prepared on 2-inch Si wafer by thermal annealing Au-Ag alloy thin film in protective ambient. The nanoparticles were evenly distributed on the substrate surface. The diameter of the nanoparticles is dependent of the deposition duration of the Au-Ag alloy thin film, and also the separation between the nanoparticles. The minimum and maximum diameters of the nanoparticles obtained so far are about 5nm and 160 nm, respectively. Experimental evidences indicated that the formation of the hemispherical nanoparticles is due to the surface tensile stressing induced by the lattice expansion.

Keywords: AU-AG ALLOY NANOPARTICLES; SELF-ASSEMBLY; THERMAL ANNEALING

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2008.133

Publication date: 2008-07-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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