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Journal of Electron Microscopy Advance Access originally published online on August 25, 2005
Journal of Electron Microscopy 2005 54(3):287-291; doi:10.1093/jmicro/dfi039
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© The Author 2005. Published by Oxford University Press on behalf of Japanese Society of Microscopy. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Electron energy-loss spectroscopy study of ZnO nanobelts

Yong Ding1 and Zhong Lin Wang1,2,*

1 School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, N. W., Atlanta, GA 30332-0245, USA and 2 National Center for Nanoscience and Nanotechnology, Beijing 100080, China

* To whom correspondence should be addressed. E-mail: zhong.wang{at}mse.gatech.edu

Nanobelts of ZnO have well-defined shapes that are enclosed by {0001}, {010} and {210} facets. The nanobelts grow along [010] and [20] with large flat surfaces of ±(0001) and ±(010), respectively. Electron energy-loss spectroscopy has been applied to study the electronic structure of ZnO nanobelts of different growth orientations. A plasmon peak observed at 13 eV is suggested to be the result of polar surface excitation. The energy-loss near-edge structure of the oxygen K and zinc L3 edges acquired from the two types of nanobelts show clear orientation dependence, and they agree well to the calculated results.

Keywords     electron energy-loss spectroscopy, plasmon, energy-loss near-edge structure, ZnO, nanobelt, polar surface

Received     20 December 2004, accepted 23 February 2005


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