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Electrochemical Tuning of High Energy Photon Branches of Double Wall Carbon Nanotubes
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SYSNO ASEP 0101123 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Electrochemical Tuning of High Energy Photon Branches of Double Wall Carbon Nanotubes Title Elektrochemické ladění HEM fononů v Double wall carbon nanotubách Author(s) Kalbáč, Martin (UFCH-W) RID, ORCID
Kavan, Ladislav (UFCH-W) RID, ORCID
Zukalová, Markéta (UFCH-W) RID, SAI, ORCID
Dunsch, L. (DE)Source Title Carbon. - : Elsevier - ISSN 0008-6223
Roč. 42, č. 14 (2004), s. 2915-2920Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords carbon nanotubes ; Raman spectroscopy ; electrochemical properties Subject RIV CG - Electrochemistry R&D Projects IAA4040306 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z4040901 - UFCH-W Annotation Double wall carbon nanotubes (DWCNT) were studied by Raman spectroscopy and by in situ Raman spectroelectrochemistry. Two components of the G''-mode were assigned to the signals from inner and outer tubes. The dependence of the G''-mode intensity and frequency on the excitation laser energy was different for the inner and outer tubes. The changes in G''-mode caused by the applied electrochemical potential were discussed in detail. The red shifted component of the G''-mode exhibits delayed response to the electrochemical charging. Moreover, bleaching of the red shifted component was less symmetrical than that of the blue shifted component, if the applied electrode potential swept in anodic and cathodic directions. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2005
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