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Browse Journals & Magazines > Applied Physics Letters ...> Volume:88 Issue:18 Help

Surface optical phonon Raman scattering in Zn/ZnO core-shell structured nanoparticles

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6 Author(s)
Zeng, Haibo ; Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China ; Cai, Weiping ; Cao, Bingqiang ; Hu, Jinlian
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 cm-1 in metal-semiconduc..."/>

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Surface optical (SO) phonon vibration mode predominant Raman scattering spectra were observed in the range of 545–565 cm-1 in metal-semiconductor Zn/ZnO core-shell structured nanoparticles, prepared by laser ablation of a zinc target in a surfactant aqueous solution. The SO phonon mode exhibits significant size confinement effect. Such SO dominant Raman scattering is attributed to the existence of a large number of disorderly arranged areas among ultrafine ZnO grains formed under the extreme condition of laser ablation. This study demonstrates that the properties of surface phonons can availably reflect some important physical information.

Published in:
Applied Physics Letters  (Volume:88 ,  Issue: 18 )

Date of Publication: May 2006

Page(s):
181905 - 181905-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2199968
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
May 2006

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