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Fabrication and Raman Studies of Core-Shell Heteronanowires

Hyo Sung Kim ,  Hyoun Woo Kim 

Inha University, School of Materials science and engineering, 253 Yong Hyun Dong, Nam Ku, Incheon 402-751, Korea, South

Abstract

Since the discovery of carbon nanotubes, one-dimensional (1D) nanoscale materials have drawn much attention due to their peculiar and interesting physical properties and potential device applications. Recently, coaxial nanocable-like 1D structures comprising different kinds of materials have been successfully synthesized for a variety of purposes, such as making nanometer scale electronic devices with a variety of functions and protecting the 1D structures from contamination or oxidation, etc. Furthermore, as the demand for fabricating special nanowire structures increases, to develop the method not only for synthesizing a wide variety of nanowires but also for modifying or improving the properties of as-synthesized nanowires becomes very important. In the present study, we have fabricated the core-shell heteronanowires and investigated comparatively the core/shell structures before and after coating, with respect to their morphological, structural and Raman characteristics. In addition, the effects of thermal annealing on the Raman spectra have also been scrutinized.

 

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Related papers

Presentation: Poster at E-MRS Fall Meeting 2008, Symposium A, by Hyo Sung Kim
See On-line Journal of E-MRS Fall Meeting 2008

Submitted: 2008-07-24 13:33
Revised:   2009-06-07 00:48