Phase diagrams of laser-processed nanoparticles of brass

Nanoparticles of brass are prepared by ablation of a brass target in ethanol using radiation of a copper-vapor laser at various laser fluences. The nanoparticles are characterized by TEM and optical spectroscopy. The multipulse laser irradiation leads to formation both the nanoparticles in liquid an...

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Bibliographic Details
Published inApplied surface science Vol. 253; no. 19; pp. 7724 - 7728
Main Authors Kazakevich, P.V., Simakin, A.V., Shafeev, G.A., Monteverde, F., Wautelet, M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 31.07.2007
Subjects
Colloidal solutions
Laser ablation
Nanoparticles
Phase diagram
Plasmon resonance
Nanoparticles
Colloidal solutions
Laser ablation
Plasmon resonance
Phase diagram
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Summary:Nanoparticles of brass are prepared by ablation of a brass target in ethanol using radiation of a copper-vapor laser at various laser fluences. The nanoparticles are characterized by TEM and optical spectroscopy. The multipulse laser irradiation leads to formation both the nanoparticles in liquid and well-ordered micro-structures on a surface of a target. It is revealed that both the morphology and absorption spectra of brass nanoparticles depend on presence of the micro-structures. Nanoparticles with the various phase diagrams are formed from a flat brass surface and from the same surface with micro-structures. The results are compared with a model of phase diagrams, in which size and composition effects are taken into account.
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ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2007.02.176