Combined STM/STS, TEM/EELS investigation of CNx-SWNTs

Autor: Lin, H., Lagoute, J., Chacon, C., Arenal, R., Stephan, O., Repain, V., Girard, Y., Enouz, S., Bresson, L., Rousset, S., Loiseau, A.
Přispěvatelé: Laboratoire Matériaux et Phénomènes Quantiques (MPQ (UMR_7162)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratorio de Microscopías Avanzadas, Laboratoire de Physique des Solides (LPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Département Mécanismes d'Accidents (INRETS/MA), Institut National de Recherche sur les Transports et leur Sécurité (INRETS), Laboratoire d'étude des microstructures [Châtillon] (LEM - ONERA - CNRS), ONERA-Centre National de la Recherche Scientifique (CNRS), Knoop, Martina
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: physica status solidi (b)
physica status solidi (b), Wiley, 2008, 245 (10, SI), pp.1986-1989
ISSN: 0370-1972
1521-3951
Popis: Nitrogen doped single-walled carbon nanotubes (Cn(x)-SWNTs) were successcfully synthesized by vaporizing a C:Ni/Y target by a CO2 continuous laser under a nitrogen atmosphere. The as-grown nanotubes were investigated by combining TEM/EELS and STM/STS techniques. According to TEM observations, the tubes are mostly single-walled and few defects are found. Local chemical characterization was performed by EELS analysis, which proves the presence of nitrogen in both individual tubes and SWNTs bundles and indicates a nitrogen concentration around 1 at.%. STM observations of CNx-SWNTs have been then undertaken and atomic resolution images were obtained. First STM analyses of these nanotubes show some defects which have never been observed in pure carbon nanotubes before. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Databáze: OpenAIRE
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