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In situ TEM study on structural and electric conduction properties of a multiwall carbon nanotube connected to a Mo electrode
Author(s) -
Shinomiya Yuji,
Asaka Koji,
Nakahara Hitoshi,
Saito Yahachi
Publication year - 2016
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6114
Subject(s) - carbon nanotube , electrode , transmission electron microscopy , materials science , nanotube , joule heating , thermal conduction , molybdenum , electrical resistivity and conductivity , conductance , composite material , electrical resistance and conductance , nanotechnology , shell (structure) , chemistry , condensed matter physics , electrical engineering , metallurgy , physics , engineering
Structural change of a multiwall carbon nanotube (MWNT) contacted with a molybdenum (Mo) electrode during Joule heating and its electrical conducting properties were investigated by in situ transmission electron microscopy. We found that inner shells of the MWNT were retracted (slide and disappeared) to the Mo electrode, and the total electrical conductance decreased accordingly. This result shows that inner shells being retracted to the Mo electrode contribute to the electric conduction in the MWNT. Utilizing this inner‐shell retraction phenomenon, inter‐shell conductance per unit length in a MWNT is derived to be ca. 13–19 mS/µm. Copyright © 2016 John Wiley & Sons, Ltd.