Počet záznamů: 1
Tuning of Sorted Double-Walled Carbon Nanotubes by Electrochemical Charging
- 1.
SYSNO ASEP 0345289 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tuning of Sorted Double-Walled Carbon Nanotubes by Electrochemical Charging Tvůrce(i) Kalbáč, Martin (UFCH-W) RID, ORCID
Green, A. A. (US)
Hersam, M. C. (US)
Kavan, Ladislav (UFCH-W) RID, ORCIDZdroj.dok. ACS Nano. - : American Chemical Society - ISSN 1936-0851
Roč. 4, č. 1 (2010), s. 459-469Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova double-walled carbon nanotubes ; electrochemical gating ; spectroelectrochemistry Vědní obor RIV CG - Elektrochemie CEP IAA400400911 GA AV ČR - Akademie věd IAA400400804 GA AV ČR - Akademie věd KAN200100801 GA AV ČR - Akademie věd GC203/07/J067 GA ČR - Grantová agentura ČR LC510 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000273863400057 DOI 10.1021/nn900895w Anotace Double-walled carbon nanotubes sorted by density gradient ultracentrifugation were examined by Raman spectroscopy and by in situ Raman spectroelectrochemistry. The sorted samples had a narrow distribution of diameters of both inner and outer tubes, which enabled a comparison of the behavior of inner metallic tubes and Inner semiconducting nanotubes as a function of the applied electrochemical potential. The metallic inner tubes were efficiently doped even though they were protected from electrolyte Ions by the outer wall, whereas the doping of semiconducting Inner tubes was observed only at high magnitudes of the electrode potential. These results indicate that the doping response of inner tubes is predominantly controlled by inner tube electronic properties. On the other hand, the effect of electronic structure of the outer tube on the behavior of inner tube is weak. Furthermore, the efficiency of the charge transfer from outer to inner wall depends on the doping level. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
Počet záznamů: 1