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Controlled doping of double walled carbon nanotubes and conducting polymers in a composite: An in situ Raman spectroelectrochemical study
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SYSNO ASEP 0326230 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Controlled doping of double walled carbon nanotubes and conducting polymers in a composite: An in situ Raman spectroelectrochemical study Title Kontrolované dopování kompositů dvojstěnných uhlíkových nanotub a vodivých polymerů: In-situ Raman spektroelektrochemická studie Author(s) Kalbáč, Martin (UFCH-W) RID, ORCID
Kavan, Ladislav (UFCH-W) RID, ORCID
Dunsch, L. (DE)Source Title Composites Science and Technology. - : Elsevier - ISSN 0266-3538
Roč. 69, č. 10 (2009), s. 1553-1557Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords carbon nanotubes ; nanocomposities ; Raman spectroscopy ; electrochemistry Subject RIV CG - Electrochemistry R&D Projects KJB400400601 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA400400804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KAN200100801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GC203/07/J067 GA ČR - Czech Science Foundation (CSF) LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000267729000010 DOI 10.1016/j.compscitech.2008.06.020 Annotation The interaction of double wall carbon nanotubes (DWCNTs) and the conducting polymer poly(3,4-ethylenedioxythiphene/polystyrenesulfonate (PEDOT/PSS) was studied by in-situ Raman spectroelectrochemistry. The mixing of DWCNTs with PEDOT/PSS caused a partial doping of the outer tube of DWCNTs, which was indicated by the relative change of the Raman intensity of the DWCNTs features. On the other hand, the bands corresponding to inner tubes of DWCNTs and to the polymer were almost untouched by assembling both species into a composite. The in situ Raman spectroelectrochemical experiments have shown that the changes in electronic structure of inner tubes of DWCNTs embedded in PEDOT/PSS matrix are dependent on the doping level. While at the low doping level of the composite, the Raman features of inner tubes of DWCNTs do not change significantly, at high doping level they reflect the changes caused by the applied electrochemical potential similar to that observed in the polymer-free DWCNTs. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2010
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