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Published on: December 7, 2015
Defect-driven room-temperature coalescence of double-walled carbon nanotubes
Anmin Nie1, Peng Wang, Hongtao Wang
1Institute of Applied Mechanics, Zhejiang University, Hangzhou 310027, People's Republic of China.
Abstract:
Room-temperature (RT) coalescence of double-walled carbon nanotubes has been observed for the first time. A combined pre-treatment of localized electron irradiation, Joule heating, and electromigration leads to the formation of large vacancy clusters, which can survive for tens of seconds during surface reconstruction. The dangling bonds of the edge atoms are highly reactive and thus promote the coalescence even at RT.
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