Aligned carbon nanotubes catalytically grown on iron-based nanoparticles obtained by laser-induced CVD

F. Le Normand; C. S. Cojocaru; O. Ersen; P. Legagneux; L. Gangloff; C. Fleaca; R. Alexandrescu; F. Dumitrache; I. Morjan

doi:10.1016/j.apsusc.2007.08.054

Aligned carbon nanotubes catalytically grown on iron-based nanoparticles obtained by laser-induced CVD

F. Le Normand
, C. S. Cojocaru
, O. Ersen
, P. Legagneux
, L. Gangloff
, C. Fleaca
, R. Alexandrescu
, F. Dumitrache
, I. Morjan

Groupe Surfaces and Interfaces
UMR 7504 CNRS-ULP
Thales Research & Technology
National Institute for Lasers
Plasma and Radiation Physics (INFLPR)

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Iron-based nanoparticles are prepared by a laser-induced chemical vapor deposition (CVD) process. They are characterized as body-centered Fe and Fe ₂ O ₃ (maghemite/magnetite) particles with sizes ≤5 and 10 nm, respectively. The Fe particles are embedded in a protective carbon matrix. Both kind of particles are dispersed by spin-coating on SiO ₂ /Si(1 0 0) flat substrates. They are used as catalyst to grow carbon nanotubes by a plasma- and filaments-assisted catalytic CVD process (PE-HF-CCVD). Vertically oriented and thin carbon nanotubes (CNTs) were grown with few differences between the two samples, except the diameter in relation to the initial size of the iron particles, and the density. The electron field emission of these samples exhibit quite interesting behavior with a low turn-on voltage at around 1 V/μm.

Original language	English
Pages (from-to)	1058-1066
Number of pages	9
Journal	Applied Surface Science
Volume	254
Issue number	4
DOIs	https://doi.org/10.1016/j.apsusc.2007.08.054
Publication status	Published - 15 Dec 2007
Externally published	Yes

Keywords

CVD
Carbon nanotubes
Electron field emission
Iron particles
Laser-induced pyrolysis
Plasma-enhanced CVD

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10.1016/j.apsusc.2007.08.054

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title = "Aligned carbon nanotubes catalytically grown on iron-based nanoparticles obtained by laser-induced CVD",

abstract = " Iron-based nanoparticles are prepared by a laser-induced chemical vapor deposition (CVD) process. They are characterized as body-centered Fe and Fe 2 O 3 (maghemite/magnetite) particles with sizes ≤5 and 10 nm, respectively. The Fe particles are embedded in a protective carbon matrix. Both kind of particles are dispersed by spin-coating on SiO 2 /Si(1 0 0) flat substrates. They are used as catalyst to grow carbon nanotubes by a plasma- and filaments-assisted catalytic CVD process (PE-HF-CCVD). Vertically oriented and thin carbon nanotubes (CNTs) were grown with few differences between the two samples, except the diameter in relation to the initial size of the iron particles, and the density. The electron field emission of these samples exhibit quite interesting behavior with a low turn-on voltage at around 1 V/μm.",

keywords = "CVD, Carbon nanotubes, Electron field emission, Iron particles, Laser-induced pyrolysis, Plasma-enhanced CVD",

author = "\{Le Normand\}, F. and Cojocaru, \{C. S.\} and O. Ersen and P. Legagneux and L. Gangloff and C. Fleaca and R. Alexandrescu and F. Dumitrache and I. Morjan",

year = "2007",

month = dec,

day = "15",

doi = "10.1016/j.apsusc.2007.08.054",

language = "English",

volume = "254",

pages = "1058--1066",

journal = "Applied Surface Science",

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TY - JOUR

T1 - Aligned carbon nanotubes catalytically grown on iron-based nanoparticles obtained by laser-induced CVD

AU - Le Normand, F.

AU - Cojocaru, C. S.

AU - Ersen, O.

AU - Legagneux, P.

AU - Gangloff, L.

AU - Fleaca, C.

AU - Alexandrescu, R.

AU - Dumitrache, F.

AU - Morjan, I.

PY - 2007/12/15

Y1 - 2007/12/15

N2 - Iron-based nanoparticles are prepared by a laser-induced chemical vapor deposition (CVD) process. They are characterized as body-centered Fe and Fe 2 O 3 (maghemite/magnetite) particles with sizes ≤5 and 10 nm, respectively. The Fe particles are embedded in a protective carbon matrix. Both kind of particles are dispersed by spin-coating on SiO 2 /Si(1 0 0) flat substrates. They are used as catalyst to grow carbon nanotubes by a plasma- and filaments-assisted catalytic CVD process (PE-HF-CCVD). Vertically oriented and thin carbon nanotubes (CNTs) were grown with few differences between the two samples, except the diameter in relation to the initial size of the iron particles, and the density. The electron field emission of these samples exhibit quite interesting behavior with a low turn-on voltage at around 1 V/μm.

AB - Iron-based nanoparticles are prepared by a laser-induced chemical vapor deposition (CVD) process. They are characterized as body-centered Fe and Fe 2 O 3 (maghemite/magnetite) particles with sizes ≤5 and 10 nm, respectively. The Fe particles are embedded in a protective carbon matrix. Both kind of particles are dispersed by spin-coating on SiO 2 /Si(1 0 0) flat substrates. They are used as catalyst to grow carbon nanotubes by a plasma- and filaments-assisted catalytic CVD process (PE-HF-CCVD). Vertically oriented and thin carbon nanotubes (CNTs) were grown with few differences between the two samples, except the diameter in relation to the initial size of the iron particles, and the density. The electron field emission of these samples exhibit quite interesting behavior with a low turn-on voltage at around 1 V/μm.

KW - CVD

KW - Carbon nanotubes

KW - Electron field emission

KW - Iron particles

KW - Laser-induced pyrolysis

KW - Plasma-enhanced CVD

U2 - 10.1016/j.apsusc.2007.08.054

DO - 10.1016/j.apsusc.2007.08.054

M3 - Article

AN - SCOPUS:36249020325

SN - 0169-4332

VL - 254

SP - 1058

EP - 1066

JO - Applied Surface Science

JF - Applied Surface Science

IS - 4

ER -

Aligned carbon nanotubes catalytically grown on iron-based nanoparticles obtained by laser-induced CVD

Abstract

Keywords

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