Morphological change of multiwalled carbon nanotubes through high-energy (MeV) ion irradiation

H. M. Kim, H. S. Kim, Sung Keun Park, Jinsoo Joo, T. J. Lee, Cheol Jin Lee

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Multiwalled carbon nanotubes (MWCNTs) were expanded by 2.5 times in diameter through high-energy (MeV) ion irradiation. Pristine MWCNTs were synthesized onto Si O2 substrate by chemical vapor deposition. The 4 MeV Cl2+ ions with a dose of 3× 1016 ions cm2 were irradiated on MWCNTs. From high-resolution transmission electron microscopy (HR-TEM) images, the average diameter of the high-energy-ion-irradiated MWCNTs was ~180 nm, while that of the pristine MWCNTs was ~70 nm. The wall thickness of the pristine and the high-energy-ion-irradiated MWCNT samples was ~20 nm and 40-50 nm, respectively. We observed the clear formation of nanocompartments with bamboolike structure inside the tubes after ion irradiation. The amorphous carbon structure in the ion-irradiated MWCNT shells was observed from Raman spectra. Based on the results of HR-TEM and Raman spectra, the expansion of the systems represents morphological transition from crystalline graphite structure to amorphous carbon or finite sized graphite structure due to the ion impact. We suggest that high-energy ion irradiation can be useful for the modification of MWCNT structures.

Original languageEnglish
Article number026103
JournalJournal of Applied Physics
Volume97
Issue number2
DOIs
Publication statusPublished - 2005 Jan 15

Fingerprint

ion irradiation
carbon nanotubes
energy
ions
graphite
Raman spectra
transmission electron microscopy
ion impact
carbon
high resolution
vapor deposition
tubes
dosage
expansion

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Morphological change of multiwalled carbon nanotubes through high-energy (MeV) ion irradiation. / Kim, H. M.; Kim, H. S.; Park, Sung Keun; Joo, Jinsoo; Lee, T. J.; Lee, Cheol Jin.

In: Journal of Applied Physics, Vol. 97, No. 2, 026103, 15.01.2005.

Research output: Contribution to journalArticle

@article{7cb42e7a34a44c4f933cfb6435933d5f,
title = "Morphological change of multiwalled carbon nanotubes through high-energy (MeV) ion irradiation",
abstract = "Multiwalled carbon nanotubes (MWCNTs) were expanded by 2.5 times in diameter through high-energy (MeV) ion irradiation. Pristine MWCNTs were synthesized onto Si O2 substrate by chemical vapor deposition. The 4 MeV Cl2+ ions with a dose of 3× 1016 ions cm2 were irradiated on MWCNTs. From high-resolution transmission electron microscopy (HR-TEM) images, the average diameter of the high-energy-ion-irradiated MWCNTs was ~180 nm, while that of the pristine MWCNTs was ~70 nm. The wall thickness of the pristine and the high-energy-ion-irradiated MWCNT samples was ~20 nm and 40-50 nm, respectively. We observed the clear formation of nanocompartments with bamboolike structure inside the tubes after ion irradiation. The amorphous carbon structure in the ion-irradiated MWCNT shells was observed from Raman spectra. Based on the results of HR-TEM and Raman spectra, the expansion of the systems represents morphological transition from crystalline graphite structure to amorphous carbon or finite sized graphite structure due to the ion impact. We suggest that high-energy ion irradiation can be useful for the modification of MWCNT structures.",
author = "Kim, {H. M.} and Kim, {H. S.} and Park, {Sung Keun} and Jinsoo Joo and Lee, {T. J.} and Lee, {Cheol Jin}",
year = "2005",
month = "1",
day = "15",
doi = "10.1063/1.1834721",
language = "English",
volume = "97",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

TY - JOUR

T1 - Morphological change of multiwalled carbon nanotubes through high-energy (MeV) ion irradiation

AU - Kim, H. M.

AU - Kim, H. S.

AU - Park, Sung Keun

AU - Joo, Jinsoo

AU - Lee, T. J.

AU - Lee, Cheol Jin

PY - 2005/1/15

Y1 - 2005/1/15

N2 - Multiwalled carbon nanotubes (MWCNTs) were expanded by 2.5 times in diameter through high-energy (MeV) ion irradiation. Pristine MWCNTs were synthesized onto Si O2 substrate by chemical vapor deposition. The 4 MeV Cl2+ ions with a dose of 3× 1016 ions cm2 were irradiated on MWCNTs. From high-resolution transmission electron microscopy (HR-TEM) images, the average diameter of the high-energy-ion-irradiated MWCNTs was ~180 nm, while that of the pristine MWCNTs was ~70 nm. The wall thickness of the pristine and the high-energy-ion-irradiated MWCNT samples was ~20 nm and 40-50 nm, respectively. We observed the clear formation of nanocompartments with bamboolike structure inside the tubes after ion irradiation. The amorphous carbon structure in the ion-irradiated MWCNT shells was observed from Raman spectra. Based on the results of HR-TEM and Raman spectra, the expansion of the systems represents morphological transition from crystalline graphite structure to amorphous carbon or finite sized graphite structure due to the ion impact. We suggest that high-energy ion irradiation can be useful for the modification of MWCNT structures.

AB - Multiwalled carbon nanotubes (MWCNTs) were expanded by 2.5 times in diameter through high-energy (MeV) ion irradiation. Pristine MWCNTs were synthesized onto Si O2 substrate by chemical vapor deposition. The 4 MeV Cl2+ ions with a dose of 3× 1016 ions cm2 were irradiated on MWCNTs. From high-resolution transmission electron microscopy (HR-TEM) images, the average diameter of the high-energy-ion-irradiated MWCNTs was ~180 nm, while that of the pristine MWCNTs was ~70 nm. The wall thickness of the pristine and the high-energy-ion-irradiated MWCNT samples was ~20 nm and 40-50 nm, respectively. We observed the clear formation of nanocompartments with bamboolike structure inside the tubes after ion irradiation. The amorphous carbon structure in the ion-irradiated MWCNT shells was observed from Raman spectra. Based on the results of HR-TEM and Raman spectra, the expansion of the systems represents morphological transition from crystalline graphite structure to amorphous carbon or finite sized graphite structure due to the ion impact. We suggest that high-energy ion irradiation can be useful for the modification of MWCNT structures.

UR - http://www.scopus.com/inward/record.url?scp=19944432039&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=19944432039&partnerID=8YFLogxK

U2 - 10.1063/1.1834721

DO - 10.1063/1.1834721

M3 - Article

AN - SCOPUS:19944432039

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 2

M1 - 026103

ER -