Annealing of Multiwalled Carbon Nanotubes an in-situ TEM study

Content Provider	Semantic Scholar
Author	Aloni, Shaul Mickelson, William Regan, B. C. Konsek, Steve Zettl, Alex
Copyright Year	2005
Abstract	Submitted for the MAR05 Meeting of The American Physical Society Annealing of Multiwalled Carbon Nanotubes an in-situ TEM study SHAUL ALONI, Molecular Foundry, MSD,LBNL, Berkeley, Caifornia 94720 and Dept. of Physics, UC Berkeley, California, 94720, WILLIAM MICKELSON, MSD,LBNL, Berkeley, Caifornia 94720 and Dept. of Physics, UC Berkeley, California, 94720, BRIAN CHRISTOPHER REGAN, MSD,LBNL, Berkeley, Caifornia 94720 and Dept. of Physics, UC Berkeley, California, 94720, STEVE KONSEK, MSD,LBNL, Berkeley, Caifornia 94720 and Dept. of Physics, UC Berkeley, California, 94720, ALEX ZETTL, MSD,LBNL, Berkeley, Caifornia 94720 and Dept. of Physics, UC Berkeley, California, 94720 — 1D Nanostructures in general and nanotubes in particular are often containing substantial amount of defects. The defects may are present in as grown tubes, may stem from extensive processing or being induced by electron beam. In previous reports heating above 1500C was required to anneal defects in bulk multiwalled nanotubes. In this work we report a simple procedure to anneal the tubes by passing an electrical current through suspended nanotubes in-situ inside a TEM. The experiments were performed both in a two terminal configuration as well as in free standing nanotubes attached to an in-situ nano-manipulator. As a result of local heating the defects are annealed resulting in near perfect tubular structures free of defects. In related experiments, low energy structural defects can be induced by the electrical current. Shaul Aloni Molecular Foundry, MSD,LBNL, Berkeley, Caifornia 94720 and Dept. of Physics, UC Berkeley, California, 94720 Date submitted: 01 Dec 2004 Electronic form version 1.4
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Alternate Webpage(s)	http://absimage.aps.org/image/MAR05/MWS_MAR05-2004-005989.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article