The complete Raman spectrum of nanometric SnO2 particles
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Open Access
- 1 August 2001
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 90 (3), 1550-1557
- https://doi.org/10.1063/1.1385573
Abstract
The complete Raman spectrum of SnO2 nanoparticles in presented and analyzed. In addition to the "classical" modes observed in the rutile structure, two other regions shown Raman activity for nanoparticles. The Raman bands in the low-frequency region are attributed to acoustic modes associated with the vibration of the individual nanoparticle as a whole. The high-frequency region is activated by surface disorder. A detailed analysis of these regions and the changes in the normal modes of SnO2 are presented as a function nanoparticle sizeKeywords
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