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Influence of the Resonant Electronic Transition on the Intensity of the Raman Radial Breathing Mode of Single Walled Carbon Nanotubes during Electrochemical Charging

SYSNO ASEP	0334508
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Influence of the Resonant Electronic Transition on the Intensity of the Raman Radial Breathing Mode of Single Walled Carbon Nanotubes during Electrochemical Charging
Title	Vliv resonančního elektronického přechodu na intensitu Ramanského radiálního dýchacího modu v jednostěnných uhlíkových nanotubách během elektrochemického dopování
Author(s)	Kalbáč, Martin (UFCH-W)_{RID, ORCID} Kavan, Ladislav (UFCH-W)_{RID, ORCID}
Source Title	Journal of Physical Chemistry C. - : American Chemical Society - ISSN 1932-7447 Roč. 113, č. 37 (2009), s. 16408-16413
Number of pages	6 s.
Language	eng - English
Country	US - United States
Keywords	single-walled carbon nanotubes ; radial breathing mode ; electrochemistry
Subject RIV	CG - Electrochemistry
R&D Projects	GC203/07/J067 GA ČR - Czech Science Foundation (CSF)
	IAA400400911 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)
	LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000269655800016
DOI	10.1021/jp905312b
Annotation	In situ Raman spectroelectrochemistry has been used to probe the E11S and E22S electronic transitions of the semiconducting single walled carbon nanotube tube (6,5). These two transitions were investigated through the intensities of the radial breathing mode by using 1.16 and 2.18 eV laser excitation energies, respectively. The bleaching behavior of the (6,5) tube is similar for both laser excitation energies if the magnitude of the applied electrode potential is smaller than about 0.5 V. At potentials outside the 0.5 V window, the intensity/ potential profile is steeper for the 1.16 eV laser excitation. But a significant bleaching of the Raman signal is observed also for the 2.18 eV laser excitation energy even at mild potentials. This behavior shows that the filling of the E11S electronic state has a strong impact also on the E22S electronic transition.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2010

Number of the records: 1