Volume 250, Issue 12 pp. 2616-2621
Original Paper

Role of the pressure transmitting medium on the pressure effects in DWCNTs

B. Anis

B. Anis

Experimentalphysik 2, Universität Augsburg, 86159 Augsburg, Germany

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F. Börrnert

F. Börrnert

IFW Dresden, P. O. Box 270116, 01171 Dresden, Germany

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M. H. Rümmeli

M. H. Rümmeli

IFW Dresden, P. O. Box 270116, 01171 Dresden, Germany

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C. A. Kuntscher

Corresponding Author

C. A. Kuntscher

Experimentalphysik 2, Universität Augsburg, 86159 Augsburg, Germany

Corresponding author: e-mail [email protected], Phone: +49 (0)821 598 3315, Fax: +49 (0)821 598 3411Search for more papers by this author
First published: 20 October 2013
Citations: 13

Abstract

We present a high-pressure optical spectroscopy study on double-walled carbon nanotubes with urn:x-wiley:15213951:media:pssb201300062:pssb201300062-math-00010.80 nm and urn:x-wiley:15213951:media:pssb201300062:pssb201300062-math-00021.45 nm using nitrogen, argon, and alcohol-mixture as pressure transmitting medium (PTM). The pressure-induced redshift of the optical transitions in the outer tubes is very small below 10 GPa, demonstrating the enhanced mechanical stability due to the inner tube. An anomaly at the critical pressure urn:x-wiley:15213951:media:pssb201300062:pssb201300062-math-0003 urn:x-wiley:15213951:media:pssb201300062:pssb201300062-math-0004 12 GPa signals the onset of the pressure-induced deformation of the tubular cross-sections. Using argon as PTM affects the results quantitatively: The urn:x-wiley:15213951:media:pssb201300062:pssb201300062-math-0005 value is lower and the absorption bands are broadened considerably. Furthermore, alcohol-mixture as PTM seems to destroy the tubes completely above 10 GPa due to its solidification. The results are compared with those for single-walled carbon nanotubes.

pssb201300062-gra-0001

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