Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/3815

TitleProperties of MoNxOy thin films as a function of N/O ratio
Author(s)Barbosa, José Gusman
Cunha, L.
Rebouta, L.
Moura, C.
Vaz, F.
Carvalho, S.
Alves, E.
Le Bourhis, E.
Goudeau, Ph.
Rivière, J. P.
KeywordsMolybdenum oxynitride
Physical vapour deposition
Issue date3-Jan-2006
PublisherElsevier
JournalThin Solid Films
Citation"Thin Solid Films". ISSN 0040-6090. 494 (2006) 201-206.
Abstract(s)The main purpose of this work consists on the preparation of single layered molybdenum oxynitride, MoNxOy. The films were deposited on steel substrates by dc reactive magnetron sputtering. The depositions were carried out from a pure Mo target varying the flow rate of reactive gases, which allowed tune the crystallographic structure between insulating oxides and metallic nitrides and consequently electronic, mechanical and optical properties of the material. X-ray diffraction (XRD) results revealed the occurrence of molybdenum nitride for the films with low oxygen fraction: face-centred cubic phases (gama-Mo2N) for low nitrogen flow rate or cubic MoNx and hexagonal phase (delta-MoN) for high nitrogen flow rate. The increase of oxygen content induces an amorphization of the nitride phases and appearance of MoO3 phases. The increase of the oxygen fraction in the films induces also a high decrease in films hardness. Residual stresses revealed to be of compressive type, in the range of very few tenths of GPa to 2 GPa. All these results have been analysed and will be presented as a function of the deposition parameters, the chemical composition and the structure of the films.
TypeArticle
URIhttp://hdl.handle.net/1822/3815
DOI10.1016/j.tsf.2005.07.192
ISSN0040-6090
Publisher versionhttp://www.elsevier.com/wps/find/journaldescription.cws_home/504106/description#description
http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TW0-4GTW8XX-C-F&_cdi=5548&_user=2459786&_orig=search&_coverDate=01%2F03%2F2006&_sk=995059998&view=c&wchp=dGLbVzb-zSkzk&md5=48046e6016e337413a264196c9eec814&ie=/sdarticle.pdf
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - FMNC - Artigos/Papers (with refereeing)
CDF - GRF - Artigos/Papers (with refereeing)

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