Positron annihilation characteristics in multi-wall carbon nanotubes with different average diameters

L. A. Tuyen, Zs Kajcsos, K. Lázár, T. D. Tap, D. D. Khiem, P. T. Phuc

Research output: Contribution to journalConference article

Abstract

Positron lifetime spectroscopy was used to study multi-wall carbon nanotubes. The measurements were performed in vacuum on the samples having different average diameters. The positron lifetime values depend on the nanotube diameter. The results also show an influence of the nanotube diameter on the positron annihilation intensity on the nanotube surface. The change in the annihilation probability is described and interpreted by the modified diffusion model introducing the positron escape rate from the nanotubes to their external surface.

Original languageEnglish
Article number012065
JournalJournal of Physics: Conference Series
Volume443
Issue number1
DOIs
Publication statusPublished - Jan 1 2013
Event16th International Conference on Positron Annihilation, ICPA 2012 - Bristol, United Kingdom
Duration: Aug 19 2012Aug 24 2012

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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