Structural transformations in single-wall carbon nanotubes under high pressure

Single-wall carbon nanotubes (SWNTs) under high pressure exhibit high structural stability and a series of structural transitions up to 35 GPa. As theoretically predicted, the irreversible transformation of SWNTs in the pressure range of 10–30 GPa can be attributed to the polymerization of nanotubes...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2014-04, Vol.78 (4), p.285-287
Main Authors: Volkova, Ya. Yu, Zelenovskiy, P. S., Sokolovskiy, D. N., Babushkin, A. N.
Format: Article
Language:English
Subjects:
Anvils
Collapse
Diamonds
Disorder
Electrical resistivity
Fullerenes
Hadrons
Heavy Ions
Nanotubes
Nuclear Physics
Physics
Physics and Astronomy
Polymerization
Proceedings of the International Symposium “Ordering in Minerals and Alloys” OMA-16 and Proceedings of the International Symposium “Order
Properties of Oxides” ODPO-16
Raman spectra
Single wall carbon nanotubes
Structural stability
Transformations
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Summary:Single-wall carbon nanotubes (SWNTs) under high pressure exhibit high structural stability and a series of structural transitions up to 35 GPa. As theoretically predicted, the irreversible transformation of SWNTs in the pressure range of 10–30 GPa can be attributed to the polymerization of nanotubes. The electrical conductivity of SWNTs is studied at high pressures up to 35 GPa using a diamond anvil cell (DAC) with electrically conductive anvils of the “rounded cone-plane” type made of synthetic carbonado-type diamonds. SWNTs are studied before and after the application of high pressure using the Raman confocal microscopy technique. Analysis of Raman spectra and pressure dependences of the SWNT resistance shows that the observed structural changes in SWNTs are reversible and no polymerization or collapse are observed.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873814040327