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GISAXS study of carbon nanotubes grown by CVD
Author(s) -
Mane Mane J.,
Cojocaru C. S.,
Barbier A.,
Deville J.P.,
Jean B.,
Metzger T. H.,
Thiodjio Sendja B.,
Le Normand F.
Publication year - 2007
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200701046
Subject(s) - grazing incidence small angle scattering , carbon nanotube , materials science , scattering , dispersion (optics) , cobalt , nanotechnology , envelope (radar) , chemical engineering , optics , metallurgy , small angle neutron scattering , telecommunications , radar , physics , neutron scattering , engineering , computer science
We report a quantitative Grazing Incidence Small Angle X‐ray Scattering (GISAXS) study of a dense film of mutually oriented carbon nanotubes (CNTs) grown by a catalytically‐activated DC HF CCVD process after dispersion of metallic catalytic (Co) islands on SiO 2 /Si(100) substrates. The GISAXS pattern analysis is expanded to non‐correlated surface science systems and is based on CNTs density, characteristic lengths, atomic Co dispersion throughout the CNTs and roughnesses of uncorrelated particles. The results are closely compared to SEM and TEM observations. The GISAXS patterns, even dominated by envelope features of disordered objects, provide significant complementary quantitative data about CNTs films. The results underline that cobalt continuously fills the nanotube in the course of the growth and that the CNTs experience a large tendency toward mutual alignment. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)