Download From nanopowders to functional materials : proceedings of by Radu Robert Piticescu; Witold Łojkowski; John R Blizzard PDF

By Radu Robert Piticescu; Witold Łojkowski; John R Blizzard

ISBN-10: 1613447132

ISBN-13: 9781613447130

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Extra info for From nanopowders to functional materials : proceedings of Symposium G, European Materials Research Society Fall Meeting, Warsaw University of Technology, 6th-10th September, 2004

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26 From Nanopowders to Functional Materials action of Zn on ethanol vapour, since ablation of a Cu target in similar conditions does not lead to the formation of core-shell particles. The spectra of the colloidal solutions obtained from the laser ablation of both metals depends more on the nature of the liquid than on the laser wavelength. Therefore, a shell may be created around almost any nanoparticle obtained by laser ablation of a solid target if the liquid possesses the appropriate chemical and optical properties.

1. Optical absorption spectra of silver colloids before (1) and after laser irradiation at 266 nm, laser fluence 100 mJ/cm2 (2), at 400 nm, laser fluence 100 mJ/cm2 (3), at 532 nm, laser fluence 250 mJ/cm2 (4). Time of irradiation was 5 min. 300 400 500 600 700 λ, nm Fig. 2. The normalized difference spectra of laser-irradiated solutions and non-irradiated samples for pulsed laser irradiation at 532 nm (1), 400 nm (2) and 266 nm (3). The peak absorbance was also found to increase gradually with the exposure time and then to level off after 5 min for the conditions used in the experiment.

Portemer, K. Tekaia-Elhsissen, and M. Figlarz: Eur. J. Solid State Inorg. , Vol. 28 (1991), p. 505 T. Hiemstra, W. H. Van Riemsdijk, and G. H. Bolt: Journal of Colloid and Interface Science, Vol. 133 (1989), p. 91 T. Hiemstra, J. C. M. De Wit, and W. H. Van Riemsdijk: Journal of Colloid and Interface Science, Vol. 133 (1989), p. China, 2 Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany Keywords: BaTiO3 Nanoparticles, Microstructures, Hydrothermal Technique, TEM, HRTEM Abstract.

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From nanopowders to functional materials : proceedings of Symposium G, European Materials Research Society Fall Meeting, Warsaw University of Technology, 6th-10th September, 2004 by Radu Robert Piticescu; Witold Łojkowski; John R Blizzard


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