Laser-driven structural modifications and diffusion phenomena of plasmonic AlN/Ag stratified films

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Delli, E., Bazioti, C., Pliatsikas, N., Kalfagiannis, N. ORCID: 0000-0002-4030-5525, Vourlias, G., Siozios, A., Dimitrakopulos, G.P., Koutsogeorgis, D.C. ORCID: 0000-0001-6167-1084 and Patsalas, P., 2016. Laser-driven structural modifications and diffusion phenomena of plasmonic AlN/Ag stratified films. Surface and Coatings Technology, 295, pp. 46-53. ISSN 0257-8972

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Official URL: http://doi.org/10.1016/j.surfcoat.2015.11.038

Abstract

Laser annealing (LA) of AlN/Ag multilayers was proven to be an effective process to control the structure and dispersion of Ag into the AlN resulting in intense coloration via the localized surface plasmon resonance, which is of particular importance for decorative applications. In this work we present a study of the structural changes occurring in various AlN/Ag multilayers after LA, in an effort to establish firm knowledge of the diffusion and re-nucleation mechanisms that occur during the laser process. We investigate the effect of the basic LA parameters, such as the laser wavelength (193 and 248 nm), fluence (400–700 mJ/cm2), pressure (1 and 10 Bar) and number of pulses (1 and 2) and we show that the main processes is the Ag particle enhancement close to the film surface as a result of additive outidiffusion Ag and the formation of nanoparticles of varying size.

Item Type:

Journal article

Publication Title:

Surface and Coatings Technology

Creators:

Delli, E., Bazioti, C., Pliatsikas, N., Kalfagiannis, N., Vourlias, G., Siozios, A., Dimitrakopulos, G.P., Koutsogeorgis, D.C. and Patsalas, P.

Publisher:

Elsevier

Date:

15 June 2016

Volume:

295