[space, 14p, bold, centered, single space, 0 indent]
[space, 14p, centered, single space, 0 indent]
[PAPER TITLE, 14p, bold, capital, centered, single space, 0 indent]
[space, 12p, centered, single space, 0 indent]
[first name initial, author name, nr (for the same affiliation will be used the same number; if
all authors belong to the same affiliation will not use numbers), asterisk for presentation
person, 12p, centered, single space, 0 indent]
[space, 12p, centered, single space, 0 indent]
nr
[institution, department, address, e-mail (only for presentation person), 10p, italic, centered, single space, 0
indent]
[space, 10p, centered, single space, 0 indent]
[space, 10p, centered, single space, 0 indent]
Keywords [11p, bold]: [3-5 keywords separated by comma; 11p, justified, single space, 0 indent]
[space, 12p, left, single space, 0 indent]
Abstract [11p, bold]: [Summary containing: topic justification, objectives, materials, the method,
results, discussions, conclusions. The summary may include figures, photos, graphs or diagrams.
Summary will be limited to one page. Page will be filled at least 75%. 11p, justified, single space, 0
indent]
[space, 12p, left, single space, 0 indent]
Selective references [10 p, bold]:
[First name initial. Author name – Title of paper in Italics. Name of Journal, Vol., No., (month and year of the
edition), p. xx-yy; 10p, justified, single space, 0 indent]
[space, 12p, left, single space, 0 indent]
[space, 12p, left, single space, 0 indent]
Acknowledgements [11p, bold]: [thanks, if there are, 11p, justified, single space, 0 indent]
A4, margins 25mm all around, font general Calibri
See page 2 for example!!!
NEW HORIZONS IN OXYNITRIDE THIN FILMS: FROM SYNTHESIS TO
APPLICATIONS
F. Vaz1, J. Borges2*, C. Lopes1
1
2
Minho University, Physics Department, Campus de Gualtar CP2 - 2º Piso 4710-057 Braga Portugal.
Minho University, Physics Department, 4800-058 Guimarães, Portugal, e-mail: 78iuvsta@gmail.com
Keywords: metallic, oxynitrides, decorative coatings
Abstract: Metallic (Me) oxynitrides (MeNxOy) are an attractive class of materials of emerging interest
due to a unique set of versatile properties in different technological domains such as protective
applications (wear, diffusion and corrosion-resistance), decorative coatings for high-quality consumer
products, gas barriers, microelectronics, optoelectronics, solar cells, etc. Among the group of already
studied oxynitrides, aluminium oxynitride (AlNxOy) presents some interesting characteristics to be
used in different technological fields, since it may combine the behaviour of metallic aluminium, and
those of the base binary systems: aluminium nitride, known for its
semiconducting and piezoelectric properties and aluminium oxide,
for its protective and insulating performance. In this work, thin films
of AlNxOy were prepared by reactive DC magnetron sputtering, using
a pure Al target and an Ar/(N2,O2) gas mixture. The particular
stoichiometry, structure and morphology of the films leads to the
formation of a nanocomposite-like material, with Al nanoparticles
randomly dispersed in an AlNxOy matrix, forming a percolating
network. This fact induced a wide variation in the electrical
properties [1], such as a gradual transition from positive to negative
temperature coefficients of resistance (TCR) as the non-metallic/Al
Ternary diagram of the
atomic ratio increases; as well as distinct optical responses [2], such
deposited AlNxOy films.
as an unusual large broadband absorption for some stoichiometries.
The nanocomposite films are also very stable in terms of their
microstructure and resistance to chemical degradation, even immersed for several weeks in typical
solutions such as NaCl. This set of properties opens a wide range of possible applications in the
electrical-driven application and in optical coatings such as those used in concentrated solar power
systems.
Selective references:
[1]
J. Borges, N. Martin, N.P. Barradas, E. Alves, D. Eyidi, M.F. Beaufort, J.P. Riviere, F. Vaz, L.
Marques, Thin Solid Films 520 (2012) 6709-6717.
[2]
J. Borges, N.P. Barradas, E. Alves, M.F. Beaufort, D. Eyidi, F. Vaz, L. Marques, Journal of
Physics D: Applied Physics 46 (2013) 015305.
Acknowledgements: We hereby acknowledge the structural founds project supported by FEDER
through the COMPETE Program and by the Portuguese Foundation for Science and Technology (FCT).