Agglomeration defects on irradiated carbon nanotubes | Zendy

Cássio Stein Moura | Zendy; Naira Maria Balzaretti | Zendy; L. Amaral | Zendy; Rodrigo G. Lacerda | Zendy; M. A. Pimenta | Zendy

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Agglomeration defects on irradiated carbon nanotubes

Author(s) -

Cássio Stein Moura,

Naira Maria Balzaretti,

L. Amaral,

Rodrigo G. Lacerda,

M. A. Pimenta

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3696884

Subject(s) - carbon nanotube , materials science , raman spectroscopy , fluence , irradiation , amorphous carbon , scanning electron microscope , ion , nanotechnology , carbon fibers , mechanical properties of carbon nanotubes , substrate (aquarium) , nanotube , composite material , chemistry , optics , composite number , physics , organic chemistry , nuclear physics , oceanography , geology

Aligned carbon nanotubes (CNT) were irradiated in the longitudinal and perpendicular directions, with low energy carbon and helium ions in order to observe the formation of defects in the atomic structure. Analysis through Raman spectroscopy and scanning electron microscopy indicated bundle rupture and ion track formation on nanotube bundles. Aligned CNT presented a kind of defect comprising ravine formation and tube agglomeration on top of the substrate. The latter structure is possibly caused by static charge accumulation induced by the incoming ions. Fluence plays a role on the short range order. Higher fluence irradiation transforms CNT into amorphous carbon nanowires

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