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(128) Production(s) de PAILLET M.
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Raman-modes of index-identified free-standing single walled-carbon nanotubes
Auteur(s): Meyer C., Paillet M., Michel T., Moreac A., Neumann A., Duesberg G., Roth S., Sauvajol J.-L.
(Article) Publié:
Physical Review Letters, vol. 95 p.217401 (2005)
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Relevant synthesis parameters for the sequential catalytic growth of carbon nanotubes 
Auteur(s): Jourdain V., Paillet M., Almairac R, Loiseau A, Bernier P
(Article) Publié:
Journal Of Physical Chemistry B, vol. 109 p.1380-1386 (2005)
Texte intégral en Openaccess : 
Ref HAL: hal-00656980_v1
PMID 16851106
DOI: 10.1021/jp046619v
WoS: 000226626500009
Exporter : BibTex | endNote
13 Citations
Résumé: Sequential catalytic growth provides an efficient tool for the synthesis of carbon nanotubes periodically inserted with catalyst nanoparticles. Several synthesis parameters were found crucial in order to induce this particular growth mechanism. The presence of phosphorus is required to form metal phosphide particles active for the formation of carbon nanotubes with a matchstick morphology. The metal composition (Ni/Fe ratio) and the carbon supply have no influence on the nanofilament type but strongly affect the nanotube yield. The synthesis temperature induces important changes on both the nanofilament type and yield, which are correlated with important transformations of the catalyst layer in terms of composition, particle size, and physical state.
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Raman spectroscopy of isolated single-walled carbon nanotubes
Auteur(s): Michel E., Paillet M., Poncharal Philippe, Zahab A. A., Meyer A., Roth S., Sauvajol J.-L.
Conférence invité: Nato Science series : II Mathematics (Toulouse, France, FR, 2005-10)
Actes de conférence: Physics and chemistry, vol. 222 p.121-123 (2005)
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Novel freestanding nanotube device for combining TEM and electron diffraction with Raman and transport.
Auteur(s): Meyer J., Paillet M., Sauvajol J.-L., Obergfell D., Duesberg G., Roth S.
Conférence invité: AIP Conference (Kirchberg, Austria, FR, 2005)
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Novel free-standing nanotube devices
Auteur(s): Meyer C., Obergfell D., Paillet M., Duesberg G., Sauvajol J.-L., Roth S.
Conférence invité: Electronic Properties of Novel Materials (New York, USA, FR, 2005)
Actes de conférence: American Institute of Physics, vol. 786 p.512 (2005)
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Synthèse et propriétés physiques de nanotubes de carbone monofeuillets individuels.
Auteur(s): Paillet M.
(Thèses)
, 2005 |
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Versatile synthesis of individual single-walled carbon nanotubes from nickel nanoparticles for the study of their physical properties
Auteur(s): Paillet M., Jourdain V., Poncharal P, Sauvajol J.-L., Zahab A. A., Meyer Jc, Roth S, Cordente N, Amiens C, Chaudret B
(Article) Publié:
Journal Of Physical Chemistry B, vol. 108 p.17112-17118 (2004)
DOI: 10.1021/jp0471711
WoS: 000224820500018
60 Citations
Résumé: Discrete nickel catalyst nanoparticles (NP) have been used to grow isolated single-walled carbon nanotubes by chemical vapor deposition (CVD). Atomic force microscopy (AFM), transmission electron microscopy (TEM) and micro-Raman spectroscopy are used to characterize these as-grown, isolated nanotubes. Using a conventional setup, we are able to produce narrow diameter distribution single-walled carbon nanotubes (SWNTs) (1.45 +/- 0.5 nm), showing a clear mismatch with the larger broad size distribution of the catalyst nanoparticles (4.7 +/- 1.5 nm). Investigation of the growth conditions allowed us to synthesize, starting with the same catalyst materials, various carbon nanotube (CNT) samples with a wide range of characteristics. The advantages of such a versatile CVD method for the study of physical properties at the single nanotube level are illustrated by means of two prospective studies on SWNTs mechanical and vibrational properties.
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