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Journal of Electron Microscopy Advance Access published online on September 29, 2005
Journal of Electron Microscopy, doi:10.1093/jmicro/dfi061
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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
Received May 19, 2005
Accepted August 8, 2005

Physical note

In situ high temperature TEM observation of interaction between multi-walled carbon nanotube and in situ deposited gold nano-particles

Takeo Kamino 1*, Toshie Yaguchi 1, Mitsuru Konno 1, and Takahito Hashimoto 1

1 Hitachi High-Technologies Corporation, 11-1 Ishikawa-cho, Hitachinaka, Ibaraki 312-0057, Japan

* To whom correspondence should be addressed.
Takeo Kamino, E-mail: kamino-takeo{at}naka.hitachi-hitec.com


  Abstract

Interaction between multi-walled carbon nanotubes (MWNTs) and deposited gold nano-particles has been dynamically observed in a 200 kV transmission electron microscope (TEM) using a specimen heating holder. Gold particles with diameters of several tens of microns were mixed with MWNTs to mount on the heating element of a specimen heating holder. The gold particles were instantaneously heated to 1373 K to deposit gold nano-particles on the MWNTs from a very short distance. The MWNTs were then heated to 1073 K to observe interaction between the deposited gold nano-particles and MWNTs. Some gold nano-particles drilled through the wall of the MWNT and entered the capillary space of the MWNTs. To characterize the mechanism of the transition of the gold nano-particles into the capillary space of the MWNT, high resolution TEM observation of the deformed wall of MWNT was also carried out.

Keywords: multi-walled carbon nanotubes; in situ high temperature transmission electron microscopy observation; specimen heating holder; gold nano-particles; high resolution TEM.
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