Influence of the reactive atmosphere on the formation of nanoparticles in the plasma plume induced by nanosecond pulsed laser irradiation of metallic targets at atmospheric pressure and high repetition rate

Affiliation auteurs!!!! Error affiliation !!!!
TitreInfluence of the reactive atmosphere on the formation of nanoparticles in the plasma plume induced by nanosecond pulsed laser irradiation of metallic targets at atmospheric pressure and high repetition rate
Type de publicationJournal Article
Year of Publication2016
AuteursGirault M., Le Garrec J.-L, Mitchell J.BA, Jouvard J.-M, Carvou E., Menneveux J., Yu J., Ouf F.-X, Carles S., Potin V., Pillon G., Bourgeois S., Perez J., de Lucas M.CMarco, Lavisse L.
JournalAPPLIED SURFACE SCIENCE
Volume374
Pagination132-137
Date PublishedJUN 30
Type of ArticleArticle; Proceedings Paper
ISSN0169-4332
Mots-clésLaser ablation, Metal oxides stability, Nanoparticles, SAXS
Résumé

The influence of a reactive atmosphere on the formation of nanoparticles (NPs) in the plasma plume generated by nanosecond pulsed laser irradiation of metal targets (Ti, Al, Ag) was probed in situ using Small Angle X-ray Scattering (SAXS). Air and different O-2-N-2 gas mixtures were used as reactive gas within atmospheric pressure. SAXS results showed the formation of NPs in the plasma-plume with a mean radius varying in the 2-5 nm range. A decrease of the NPs size with increasing the O-2 percentage in the O-2-N-2 gas mixture was also showed. Ex situ observations by transmission electron microscopy and structural characterizations by X-ray diffraction and Raman spectroscopy were also performed for powders collected in experiments done using air as ambient gas. The stability of the different metal oxides is discussed as being a key parameter influencing the formation of NPs in the plasma-plume. (C) 2015 Elsevier B.V. All rights reserved.
DOI10.1016/j.apsusc.2015.10.090