Photoemission study of CF4 rf-Plasma treated multi-wall carbon nanotubes

A. Felten; J. Ghijsen; J. J. Pireaux; R. L. Johnson; C. M. Whelan; D. Liang; G. Van Tendeloo; Carla Bittencourt

doi:10.1016/j.carbon.2008.04.027

Photoemission study of CF₄ rf-Plasma treated multi-wall carbon nanotubes

A. Felten, J. Ghijsen, J. J. Pireaux, R. L. Johnson, C. M. Whelan, D. Liang, G. Van Tendeloo, Carla Bittencourt

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

Abstract

Multi-wall carbon nanotubes (MWCNTs) were exposed to a CF₄ rf-plasma. X-ray photoelectron spectroscopy analysis shows that the treatment effectively grafts fluorine atoms onto the MWCNTs. The fluorine atomic concentration and the nature of the C-F bond (semi-ionic or covalent) can be tuned by varying the exposure time. Ultraviolet photoelectron spectroscopy analysis confirms that the valence electronic states are altered by the grafting of fluorine atoms. Characterization with high-resolution transmission electron microscopy reveals that while the plasma treatment does not induce significant etching impact on the CNT-surface, it does increase the number of active sites for gold cluster formation.

Original language	English
Pages (from-to)	1271-1275
Number of pages	5
Journal	Carbon
Volume	46
Issue number	10
DOIs	https://doi.org/10.1016/j.carbon.2008.04.027
Publication status	Published - Aug 2008

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10.1016/j.carbon.2008.04.027

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@article{2f084f46d8054dc9a18d98ca9a2cfcd8,

title = "Photoemission study of CF4 rf-Plasma treated multi-wall carbon nanotubes",

abstract = "Multi-wall carbon nanotubes (MWCNTs) were exposed to a CF4 rf-plasma. X-ray photoelectron spectroscopy analysis shows that the treatment effectively grafts fluorine atoms onto the MWCNTs. The fluorine atomic concentration and the nature of the C-F bond (semi-ionic or covalent) can be tuned by varying the exposure time. Ultraviolet photoelectron spectroscopy analysis confirms that the valence electronic states are altered by the grafting of fluorine atoms. Characterization with high-resolution transmission electron microscopy reveals that while the plasma treatment does not induce significant etching impact on the CNT-surface, it does increase the number of active sites for gold cluster formation.",

author = "A. Felten and J. Ghijsen and Pireaux, {J. J.} and Johnson, {R. L.} and Whelan, {C. M.} and D. Liang and {Van Tendeloo}, G. and Carla Bittencourt",

note = "Funding Information: This work was supported by the Belgian Program on Interuniversity Attraction Pole (PAI 6/08), EU-STREP project Nano2Hybrids (No. 033311), CE-Nanobeams NoE, DESY and the European Commission under contract RII3-CT-2004-506008 (IA-SFS). JG is a research associate of NFSR (Belgium).",

year = "2008",

month = aug,

doi = "10.1016/j.carbon.2008.04.027",

language = "English",

volume = "46",

pages = "1271--1275",

journal = "Carbon",

publisher = "Elsevier",

number = "10",

}

TY - JOUR

T1 - Photoemission study of CF4 rf-Plasma treated multi-wall carbon nanotubes

AU - Felten, A.

AU - Ghijsen, J.

AU - Pireaux, J. J.

AU - Johnson, R. L.

AU - Whelan, C. M.

AU - Liang, D.

AU - Van Tendeloo, G.

AU - Bittencourt, Carla

N1 - Funding Information: This work was supported by the Belgian Program on Interuniversity Attraction Pole (PAI 6/08), EU-STREP project Nano2Hybrids (No. 033311), CE-Nanobeams NoE, DESY and the European Commission under contract RII3-CT-2004-506008 (IA-SFS). JG is a research associate of NFSR (Belgium).

PY - 2008/8

Y1 - 2008/8

N2 - Multi-wall carbon nanotubes (MWCNTs) were exposed to a CF4 rf-plasma. X-ray photoelectron spectroscopy analysis shows that the treatment effectively grafts fluorine atoms onto the MWCNTs. The fluorine atomic concentration and the nature of the C-F bond (semi-ionic or covalent) can be tuned by varying the exposure time. Ultraviolet photoelectron spectroscopy analysis confirms that the valence electronic states are altered by the grafting of fluorine atoms. Characterization with high-resolution transmission electron microscopy reveals that while the plasma treatment does not induce significant etching impact on the CNT-surface, it does increase the number of active sites for gold cluster formation.

AB - Multi-wall carbon nanotubes (MWCNTs) were exposed to a CF4 rf-plasma. X-ray photoelectron spectroscopy analysis shows that the treatment effectively grafts fluorine atoms onto the MWCNTs. The fluorine atomic concentration and the nature of the C-F bond (semi-ionic or covalent) can be tuned by varying the exposure time. Ultraviolet photoelectron spectroscopy analysis confirms that the valence electronic states are altered by the grafting of fluorine atoms. Characterization with high-resolution transmission electron microscopy reveals that while the plasma treatment does not induce significant etching impact on the CNT-surface, it does increase the number of active sites for gold cluster formation.

UR - http://www.scopus.com/inward/record.url?scp=47349131295&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2008.04.027

DO - 10.1016/j.carbon.2008.04.027

M3 - Article

VL - 46

SP - 1271

EP - 1275

JO - Carbon

JF - Carbon

IS - 10

ER -

Photoemission study of CF₄ rf-Plasma treated multi-wall carbon nanotubes

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Photoemission study of CF4 rf-Plasma treated multi-wall carbon nanotubes

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Photoemission study of CF₄ rf-Plasma treated multi-wall carbon nanotubes