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Proceedings Paper

Optical and structural studies of copper nanoparticles and microfibers produced by using carbon nanotube as templates
Author(s): Z. C. Feng; B. Xue; P. Chen; J. Lin; W. Lu; N. Li; I. T. Ferguson
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Paper Abstract

Copper nanoparticles and microfibers have been prepared by solid state reaction using carbon nanotube (CNT) as template. Their optical and structural properties were investigated by scanning and transmission electron microscopy, X-ray diffraction (XRD), Raman scattering and photoluminescence. Carbon nanotube template was found to be the main contributor to the Raman spectra, however, after the introducing of copper, we found G band shifted to high frequency by a few wavenumbers and the shift was also related to the ratio of copper to carbon nanotube. With copper form change from nanoparticles to microfiber, the ratio of scattering intensity between D band and G band of carbon nanotube increase, which reveals a change in microcrystallinity. Compared with pure carbon nanotube, a broad photoluminescence background was found to be superimposed on the Raman spectrum of these copper related carbon nanotube, and the intensity of this photoluminescence background also increase with respect to the ratio of copper to carbon nanotube. High resolution X-ray diffraction indicated that copper lattice constant of copper fibers decreased with respect to its bulk form.

Paper Details

Date Published: 30 August 2006
PDF: 8 pages
Proc. SPIE 6321, Nanophotonic Materials III, 63210H (30 August 2006); doi: 10.1117/12.677666
Show Author Affiliations
Z. C. Feng, National Taiwan Univ. (Taiwan)
B. Xue, National Univ. of Singapore (Singapore)
P. Chen, National Univ. of Singapore (Singapore)
J. Lin, National Univ. of Singapore (Singapore)
W. Lu, Fisk Univ. (United States)
N. Li, Georgia Institute of Technology (United States)
I. T. Ferguson, Georgia Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6321:
Nanophotonic Materials III
Zeno Gaburro; Stefano Cabrini, Editor(s)

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