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Synthesis of single wall carbon nanotubes with defined 13 C content
Author(s) -
Kramberger C.,
Löffler M.,
Rümmeli M.,
Grüneis A.,
Schönfelder R.,
Jost O.,
Gemming T.,
Pichler T.,
Büchner B.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200669129
Subject(s) - raman spectroscopy , materials science , yield (engineering) , amorphous carbon , carbon nanotube , analytical chemistry (journal) , amorphous solid , carbon fibers , laser ablation , transmission electron microscopy , spectroscopy , softening , absorption spectroscopy , chemical engineering , laser , nanotechnology , chemistry , crystallography , optics , composite material , organic chemistry , composite number , physics , engineering , quantum mechanics
The synthesis of high quality isotope engineered SWCNT by means of laser ablation and the use of Pt‐Rh‐Re catalyst mixtures has been established. Optical absorption and Raman spectroscopy as well as transmission electron microscopy are utilized to characterize the obtained SWCNTs with regard to purity and yield. The absence of any ferromagnetic materials, as well as the remarkably low abundance of amorphous carbon renders this material ideal for magnetic studies. The controlled augmentation of 13 C is conveniently confirmed by phonon softening and broadening observed in Raman spectroscopy. Isotope labelling at constant sample quality was achieved in the whole range from 1% 13 C up to 98% 13 C. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)