Surface enhanced Raman scattering of light by ZnO nanostructures

Journal Article · Thu Dec 15 00:00:00 EST 2011 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776111140184· OSTI ID:22027952

Yeryukov, N A; Sveshnikova, L L; Duda, T A ^[1]; Zenkevich, E I ^[2]; Kosolobov, S S; Latyshev, A V ^[1]; Himcinski, C ^[3]; Surovtsev, N V; Adichtchev, S V ^[4]; Feng, Zhe Chuan ^[5]; Wu, Chia Cheng; Wuu, Dong Sing ^[6]; Zahn, D R. T. ^[7]

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1. Siberian Branch of the Russian Academy of Sciences, Rzhanov Institute of Semiconductor Physics (Russian Federation)
2. Belarussian National Technical University (Belarus)
3. Technische Universitaet Bergakademie Freiberg, Institut fuer Theoretische Physik (Germany)
4. Siberian Branch of the Russian Academy of Sciences, Institute of Automation and Electrometry (Russian Federation)
5. National Taiwan University, Graduate Institute of Photonics and Optoelectronics (China)
6. National Chung Hsing University, Department of Materials Science and Engineering (China)
7. Chemnitz University of Technology, Institute of Physics, Semiconductor Physics (Germany)

Raman scattering (including nonresonant, resonant, and surface enhanced scattering) of light by optical and surface phonons of ZnO nanocrystals and nanorods has been investigated. It has been found that the nonresonant and resonant Raman scattering spectra of the nanostructures exhibit typical vibrational modes, E{sub 2}(high) and A{sub 1}(LO), respectively, which are allowed by the selection rules. The deposition of silver nanoclusters on the surface of nanostructures leads either to an abrupt increase in the intensity (by a factor of 10{sup 3}) of Raman scattering of light by surface optical phonons or to the appearance of new surface modes, which indicates the observation of the phenomenon of surface enhanced Raman light scattering. It has been demonstrated that the frequencies of surface optical phonon modes of the studied nanostructures are in good agreement with the theoretical values obtained from calculations performed within the effective dielectric function model.

• OSTI ID: 22027952
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 113, Issue 6; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
DEPOSITION
LIGHT SCATTERING
NANOSTRUCTURES
PERMITTIVITY
PHONONS
RAMAN EFFECT
RAMAN SPECTRA
SELECTION RULES
SILVER
SURFACES
VIBRATIONAL STATES
VISIBLE RADIATION
ZINC OXIDES