http://www.cnr.it/ontology/cnr/individuo/prodotto/ID167689
Investigations of the effects of the growth of SnO2 nanoparticles on the structural properties of glass-ceramic planar waveguides using Raman and FTIR spectroscopies (Articolo in rivista)
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- Investigations of the effects of the growth of SnO2 nanoparticles on the structural properties of glass-ceramic planar waveguides using Raman and FTIR spectroscopies (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
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T. Van Tran, S. Turrell, M. Eddafi, B. Capoen, M. Bouazaoui, P. Roussel, S. Berneschi, G. Righini, M. Ferrari, S. N. B. Bhaktha, O. Cristini, C. Kinowski (2010)
Investigations of the effects of the growth of SnO2 nanoparticles on the structural properties of glass-ceramic planar waveguides using Raman and FTIR spectroscopies
in Journal of molecular structure (Print)
(literal)
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- T. Van Tran, S. Turrell, M. Eddafi, B. Capoen, M. Bouazaoui, P. Roussel, S. Berneschi, G. Righini, M. Ferrari, S. N. B. Bhaktha, O. Cristini, C. Kinowski (literal)
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- doi:10.1016/j.molstruc.2010.04.010 (literal)
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- LASIR (CNRS, UMR 8516) and CERLA, Université Lille 1, 59650 Villeneuve dAscq, France
PhLAM (CNRS, UMR 8523) and CERLA, Université Lille 1, 59650 Villeneuve dAscq, France
UCCS (CNRS, UMR 8181), Bât. C-7a, Ecole Nationale Supérieure de Chimie de Lille, 59652 Villeneuve dAscq, France
MDF Lab., IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
CSMFO Lab., IFN-CNR, Via alla Cascata 56/c, 38050 Trento, Italy
LPMC, CNRS UMR6622 and Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 02, France (literal)
- Titolo
- Investigations of the effects of the growth of SnO2 nanoparticles on the structural properties of glass-ceramic planar waveguides using Raman and FTIR spectroscopies (literal)
- Abstract
- (100-x)SiO2xSnO2 (x from 12 to 60 mol%) glassceramic thin films have been prepared by the solgel processing method, obtaining high SnO2 concentrations (up to 60 mol%) for the first time. Using an appropriate
thermal process, SnO2 nanocrystals were nucleated in the glassy silica matrix, providing optical waveguides for x < 30 mol%. M-line measurements were used to determine the thickness and refractive index of each film. Raman and FTIR spectroscopies, in situ high-temperature XRD and TEM data have been used to identify the initiation of crystallization (at about 900 °C for x < 30 mol%). Calculations based on the low-wavenumber Raman data yield the sizes of the semi-conductor nanoparticles, which vary from 3.2 to 4.6 nm with heat-treatments varying from 900 °C to 1100 °C for SnO2 concentrations varying from 12 to 30 mol%. Raman and FTIR data have provided information on the structural evolutions of the matrix which result from the formation and the growth of the SnO2 nanocrystals. (literal)
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