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Comparative analysis of the secondary electron yield from carbon nanoparticles and pure water medium

Journal Article


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Abstract


  • The production of secondary electrons generated by carbon nanoparticles and pure water medium irradiated by fast protons is studied by means of model approaches and Monte Carlo simulations. It is demonstrated that due to a prominent collective response to an external field, the nanoparticles embedded in the medium enhance the yield of low-energy electrons. The maximal enhancement is observed for electrons in the energy range where plasmons, which are excited in the nanoparticles, play the dominant role. Electron yield from a solid carbon nanoparticle composed of fullerite, a crystalline form of C-60 fullerene, is demonstrated to be several times higher than that from liquid water. Decay of plasmon excitations in carbon-based nanosystems thus represents a mechanism of increase of the low-energy electron yield, similar to the case of sensitizing metal nanoparticles. This observation gives a hint for investigation of novel types of sensitizers to be composed of metallic and organic parts.

Authors


  •   Verkhovtsev, Alexey (external author)
  •   McKinnon, Sally (external author)
  •   De Vera, Pablo (external author)
  •   Surdutovich, Eugene (external author)
  •   Guatelli, Susanna
  •   Korol, Andrei V. (external author)
  •   Rosenfeld, Anatoly B.
  •   Solovyov, Andrey (external author)

Publication Date


  • 2015

Citation


  • Verkhovtsev, A., McKinnon, S., de Vera, P., Surdutovich, E., Guatelli, S., Korol, A. V., Rosenfeld, A. & Solov'yov, A. V. (2015). Comparative analysis of the secondary electron yield from carbon nanoparticles and pure water medium. European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics, 69 (4), 1-9.

Scopus Eid


  • 2-s2.0-84939426592

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5244&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4223

Number Of Pages


  • 8

Start Page


  • 1

End Page


  • 9

Volume


  • 69

Issue


  • 4

Abstract


  • The production of secondary electrons generated by carbon nanoparticles and pure water medium irradiated by fast protons is studied by means of model approaches and Monte Carlo simulations. It is demonstrated that due to a prominent collective response to an external field, the nanoparticles embedded in the medium enhance the yield of low-energy electrons. The maximal enhancement is observed for electrons in the energy range where plasmons, which are excited in the nanoparticles, play the dominant role. Electron yield from a solid carbon nanoparticle composed of fullerite, a crystalline form of C-60 fullerene, is demonstrated to be several times higher than that from liquid water. Decay of plasmon excitations in carbon-based nanosystems thus represents a mechanism of increase of the low-energy electron yield, similar to the case of sensitizing metal nanoparticles. This observation gives a hint for investigation of novel types of sensitizers to be composed of metallic and organic parts.

Authors


  •   Verkhovtsev, Alexey (external author)
  •   McKinnon, Sally (external author)
  •   De Vera, Pablo (external author)
  •   Surdutovich, Eugene (external author)
  •   Guatelli, Susanna
  •   Korol, Andrei V. (external author)
  •   Rosenfeld, Anatoly B.
  •   Solovyov, Andrey (external author)

Publication Date


  • 2015

Citation


  • Verkhovtsev, A., McKinnon, S., de Vera, P., Surdutovich, E., Guatelli, S., Korol, A. V., Rosenfeld, A. & Solov'yov, A. V. (2015). Comparative analysis of the secondary electron yield from carbon nanoparticles and pure water medium. European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics, 69 (4), 1-9.

Scopus Eid


  • 2-s2.0-84939426592

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5244&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4223

Number Of Pages


  • 8

Start Page


  • 1

End Page


  • 9

Volume


  • 69

Issue


  • 4