Prescribed nanocluster composite glass features require the control of the cluster formation and growth, and therefore the definition of effective preparation protocols. In this work, copper-containing silica films were synthesized by sputtering co-deposition of copper and silica in a radiofrequency magnetron sputtering apparatus. The composite system was sequentially thermally-treated in different annealing environment (oxidizing and/or reducing). Characterization of samples along the various preparation steps was performed by Rutherford backscattering spectrometry, X-ray diffraction, and optical absorption spectroscopy. The copper behavior during the composite formation was complex: copper migration and aggregation depend critically on the annealing conditions, and quite different stable structures actually result, such as fcc Cu and/or monoclinic CuO nanoparticles.
|Data di pubblicazione:||2006|
|Titolo:||Copper-based nanocluster composite silica films by rf-sputtering deposition|
|Rivista:||MATERIALS SCIENCE AND ENGINEERING. C, BIOMIMETIC MATERIALS, SENSORS AND SYSTEMS|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.msec.2005.09.004|
|Appare nelle tipologie:||2.1 Articolo su rivista |
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