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Transmission Electron Microscopy Study on the Surface Properties of CNTs and Fullerites Exposed to CF4 Plasma

Published online by Cambridge University Press:  01 February 2011

Kaoru Shoda  and
Seiji Takeda
Kaoru Shoda
Affiliation:
27181u@ube-ind.co.jp, Osaka University, Department of Physics, Graduate School of Science, 1-16 Machikane-yama, Toyonaka, Osaka, 560-0043, Japan
Seiji Takeda
Affiliation:
takeda@tem.phys.sci.osaka-u.ac.jp, Osaka University, Department of Physics, Graduate School of Science, 1-16 Machikane-yama, Toyonaka, Osaka, 560-0043, Japan
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Abstract

Various types of CNTs, i.e. single-wall, double-wall, triple-wall, quadruple-wall and multi-wall carbon nanotubes (CNTs), and fullerites were fluorinated in inductive coupled radio-frequency (RF) CF4 plasma at 13.56 MHz, and their structural and bonding properties were investigated by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). We have discussed the correlation between the number of graphene sheets in a CNT and the stability against the fluorination. TEM and XPS analysis clearly state that increase of the number leads to the gain of fluorinated stability. The fluorination of CNTs is initiated at outer tubes and proceeds to inner tubes with increasing RF power, but fluorination depth is limited to only surface area. The fluorination of fullerites forms amorphous layer at the surface, and increases the depth of the layer with RF power.

Keywords

transmission electron microscopy (TEM)nanostructuresurface chemistry
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1018: Symposium EE – Applications of Nanotubes and Nanowires , 2007 , 1018-EE06-02
Copyright
Copyright © Materials Research Society 2007

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