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Oxide nanoparticles produced by laser ablation

Cornelia Sima 1Cristian Viespe 1Constantin GRIGORIU 1Sorin Jinga 2Ecaterina Andronescu 2

1. National Institute for Lasers, Plasma and Radiation Physics (INFLPR), Bucharest- Magurele 077125, Romania
2. University Politehnica of Bucharest, Polizu 1-7, Bucharest, Romania

Abstract

Oxide nanoparticles have been synthesized by pulsed laser ablation method.

Titanium, aluminum, tin, indium, nickel, germanium and zinc oxides nanoparticles were produced in oxygen atmosphere using a Nd:YAG laser at 355 nm, 60 mJ, 10 Hz, 5 J/cm2. The oxygen flow rate was maintained at 200 mbar.

The influence of environmental and laser beam parameters on the nanoparticles properties were studied. The nanoparticles morphology, structure, composition, surface composition, size, size distribution and production rate were investigated. The particles were characterized by X ray diffraction, high resolution transmission electron microscopy, scanning electron microscopy, X ray photoelectron spectroscopy and laser granulometry measurements.

The bimodal size distribution was in the range 2-50 nm (75-85 % vol.) and 0.l-2 ┬Ám (15-25% ) and nanoparticles production rate was between 0.7 and 3 mg/kJ.

 

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Related papers

Presentation: Poster at E-MRS Fall Meeting 2007, Symposium A, by Cornelia Sima
See On-line Journal of E-MRS Fall Meeting 2007

Submitted: 2007-05-14 13:17
Revised:   2009-06-07 00:44