期刊
ANNALEN DER PHYSIK
卷 523, 期 1-2, 页码 62-74出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/andp.201000094
关键词
Raman scattering; nano materials; phonon confinement effects; titania and ceria
资金
- Serbian Ministry of Science and Technological development [141047, 45018, 171032]
- SASA [F-134]
- Swiss National Science Foundation [IZ73Z0-128169]
The conventional Raman scattering spectroscopy is one of the most used and powerful techniques for characterization of nano-sized materials and structures. By proper analysis of optical mode shift and broadening in nanomaterials based on phonon confinement model, it is possible to deduce about the influence of various effects like particle size and size distribution, strain, change of phonon dispersion, substitutional effects, defect states and nonstoichiometry, electron-phonon coupling. We have demonstrated potentials of this technique in CeO2 and TiO2 nanocrystalline systems analyzing their optical phonon properties. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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