Quasi first-principles Monte Carlo modeling of energy dissipation by low-energy electron beams in multi-walled carbon nanotube materials

Research output: Contribution to journalArticle

  • Authors:
  • Dimitris Emfietzoglou
  • Ioanna Kyriakou
  • Rafael Garcia-Molina
  • Isabel Abril
  • Kostas Kostarelos

Abstract

The energy dissipation pattern of low-energy electron beams (0.3-30 keV) in multi-walled carbon nanotube (MWCNT) materials is studied by Monte Carlo simulation taking into account secondary-electron cascade generation. A quasi first-principles discrete-energy-loss model deduced from a dielectric response function description of electronic excitations in MWCNTs is employed whereby both single-particle and plasmon excitations are included in a unified and self-consistent manner. Our simulations provide practical analytical functions for computing depth-dose curves and charged-carrier generation volumes in MWCNT materials under low-energy electron beam irradiation. © 2012 American Institute of Physics.

Bibliographical metadata

Original languageEnglish
Article number093113
JournalApplied Physics Letters
Volume100
Issue number9
DOIs
Publication statusPublished - 27 Feb 2012