Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1663040 | Surface and Coatings Technology | 2007 | 4 Pages |
Abstract
Au nanoparticles embedded in silica were prepared using electron beam evaporation of gold and silica together with 50 eV Ar+ bombardment followed by post-deposition annealing. Thin films were characterized using X-ray diffraction, X-ray reflectivity, TEM, and optical spectra. The Au nanoparticles have an average diameter around 12 nm and a preferred (200) orientation. Spatially, they are distributed into a multilayered structure. The formation of layered nanoparticles is proposed to correlate to the phase separation guided by experimentally observed pre-existing compositional modulations in the as-deposited Au–silica film.
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Authors
J.H. He, C.A. Carosella, G.K. Hubler, S.B. Qadri, J.A. Sprague, R.M. Stroud,