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Effect of intense laser and energetic ion irradiation on Raman modes of Multiwalled Carbon Nanotubes

Amit Kumar 1 F. Singh P.M. Koinkar D.K. Avasthi J.C. Pivin 2 M.A. More
2 CSNSM PCI
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : The effects of intense laser and energetic ion irradiation on Raman vibrational modes of Multiwalled Carbon Nanotubes have been investigated. The intensity ratio of D and G modes decreases with increase in laser power density and remains almost constant with decrease of laser power density. The intensity ratio of D mode to G mode for ion irradiated Multiwalled Carbon Nanotubes decreases at low fluence (4 x 10(11) ions/cm(2)) and increases further with increase in ion fluence. The results show that ion irradiation at low fluence and laser irradiation lead to purification/ordering of the nanotubes. (C) 2008 Elsevier B.V. All rights reserved.
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Submitted on : Friday, March 9, 2012 - 11:24:51 AM
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Amit Kumar, F. Singh, P.M. Koinkar, D.K. Avasthi, J.C. Pivin, et al.. Effect of intense laser and energetic ion irradiation on Raman modes of Multiwalled Carbon Nanotubes. Thin Solid Films, Elsevier, 2009, 517, pp.4322-4324. ⟨10.1016/j.tsf.2008.12.016⟩. ⟨in2p3-00677690⟩

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