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Micro-Raman and infrared properties of SnO[sub 2] nanobelts synthesized from Sn and SiO[sub 2] powders.
- Source :
-
Journal of Applied Physics . 2/1/2003, Vol. 93 Issue 3, p1760. 4p. 1 Black and White Photograph, 4 Graphs. - Publication Year :
- 2003
-
Abstract
- Rutile structured SnO[sub 2] nanobelts have been synthesized from the mixture of Sn powders and SiO[sub 2] nanoparticle powders. Each nanobelt has a uniform width of about several hundred nanometers and a thickness of about tens of nanometers along its entire length. Micro-Raman spectrum measurement on the SnO[sub 2] nanobelts shows that the first-order Raman A[sub 1g] mode (632.9 cm[sup -1]) is very strong, and two weak Raman bands 498 and 694 cm[sup -1] seem to correspond to infrared (IR)-active longitudinal optical (LO) and transverse optical (TO) of A[sub 2u] modes. In addition, the IR spectrum of the SnO[sub 2] nanobelts shows the A[sub 2u] (LO) (701.9 cm[sup -1]) and E[sub u (1)] (TO) (634.5 cm[sup -1]) modes and one surface mode (565.2 cm[sup -1]). The IR-active bands in the Raman spectrum and the surface mode in IR spectrum, which may be due to the nanoscale morphology of the nanobelts. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TIN compounds
*RAMAN effect
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 93
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 9070200
- Full Text :
- https://doi.org/10.1063/1.1534903