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https://hdl.handle.net/10316/20043
Title: | An XPS study of Au alloyed Al–O sputtered coatings | Authors: | Figueiredo, N. M. Carvalho, N. J. M. Cavaleiro, A. |
Keywords: | XPS; Al2O3–Au; Au clusters; Alumina; Charging effect | Issue Date: | Apr-2011 | Publisher: | Elsevier | Citation: | FIGUEIREDO, N. M.; CARVALHO, N. J. M.; CAVALEIRO, A. - An XPS study of Au alloyed Al–O sputtered coatings. "Applied Surface Science". ISSN 0169-4332. 257:13 (2011) 5793–5798 | Serial title, monograph or event: | Applied Surface Science | Volume: | 257 | Issue: | 13 | Abstract: | The focus of this research is the X-ray photoelectron spectroscopy (XPS) analysis of thin films consisting of Au metal clusters embedded in a dielectric matrix of Al-O coatings. The coatings were deposited by co-sputtering an Al+Au target in a reactive atmosphere with Au contents up to 8 at.%. The Al-O matrix was kept amorphous even after annealing at 1000°C. In the as-deposited films the presence of Au clusters with sizes smaller than 1-2 nm (not detected by XRD) was demonstrated by XPS. With increasing annealing temperature, Au clustering in the dielectric matrix was also confirmed by XPS, in agreement with XRD results. | URI: | https://hdl.handle.net/10316/20043 | ISSN: | 0169-4332 | DOI: | 10.1016/j.apsusc.2011.01.104 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais FCTUC Eng.Mecânica - Artigos em Revistas Internacionais |
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