Schottky effect on the wavelength threshold for the photo-detachment from charged metallic nanoparticles

Mikhail N. Shneider, Yevgeny Raitses, Shurik Yatom

Research output: Contribution to journalArticlepeer-review

Abstract

Laser-stimulated electron photo-detachment (LSPD) from nanoscale dust particles is predicted to strongly depend on the particle size. A theory of the electron photo-detachment from charged spherical metallic nanoparticles is presented. This theory is relevant to laser-stimulated photo-detachment applied to measurements of charge of nanoparticles in plasmas. Our theory predicts that the charging of nanoparticles in plasma leads to the appearance of an additional electric field, causing a change in the potential barrier at the particle boundary and consequently, a change in the effective work function, due to the Schottky effect. In this case, the critical wavelength of the laser depends not only on the work function, but also on the charge of the nanoparticles and their size.

Original languageEnglish (US)
Article number29LT01
JournalJournal of Physics D: Applied Physics
Volume56
Issue number29
DOIs
StatePublished - Jul 20 2023

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

Keywords

  • charged nanoparticles
  • photo-detachment
  • red border
  • Schottky effect

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