Damaged carbon nanotubes get healed by ion irradiation

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3466774· OSTI ID:21476407

Jeet, Kiran; Jindal, V K; Dharamvir, Keya ^[1]; Bharadwaj, L M ^[2]; Avasthi, D K ^[3]

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1. Department of Physics, Panjab University, Chandigarh 160014 (India)
2. Biomolecular Electronic and Nanotechnology Division, Central Scientific Instruments Organisation, Sector 30-C, Chandigarh 160030 (India)
3. Materials Science Group, Inter University Accelerator Centre, Aruna Asaf Ali Marg, P.O. Box 10502, New Delhi 110067 (India)

Carbon nanotubes (CNTs) are being used for varied applications. It is therefore important to study their stability under extreme conditions of temperature and irradiation. In this work, we report the stability of CNTs [both single-wall CNTs (SWCNTs) and multiwalled CNTs (MWCNTs)] under irradiation of a carbon ion beam of energy 55 MeV. The irradiated samples were analyzed using Raman spectroscopy. The Raman results indicate the interesting phenomenon of healing or annealing of CNTs under ion beam irradiation. The annealing process appears to begin at the lowest value of fluences and persists for quite a good range of fluence values. As the irradiation dose increases ({approx_equal}1x10{sup 14} ions/cm{sup 2}) the MWCNTs begin to amorphize whereas the SWCNTs system continues to heal.

• OSTI ID: 21476407
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 3 Vol. 108; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ANNEALING
BEAMS
CARBON
CARBON IONS
CHARGED PARTICLES
DOSES
ELEMENTS
ENERGY RANGE
HEAT TREATMENTS
ION BEAMS
IONS
IRRADIATION
LASER SPECTROSCOPY
MEV RANGE
NANOSTRUCTURES
NANOTUBES
NONMETALS
PHASE STABILITY
PHASE STUDIES
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
RADIATION DOSES
RADIATION EFFECTS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SPECTRA
SPECTROSCOPY
STABILITY