Role of vibrationally excited NO in promoting electron emission when colliding with a metal surface: A nonadiabatic dynamic model

Gil Katz, Yehuda Zeiri, Ronnie Kosloff

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A nonadiabatic quantum dynamic model has been developed to study the process of electron emission from a low-work-function metal surface. The process is initiated by scattering a highly vibrationally excited NO molecule from a surface composed of a Cs layer covering a Ru crystal. The model addresses the increasing quantum yield of the electron emission as a function of the molecular vibrational excitation and incident kinetic energy. The reaction mechanism is identified as a long-range harpooning electron transfer to a molecular ion which is then accelerated toward the surface. Upon impact, the molecular ion emits its excess electron.

Original languageEnglish
Pages (from-to)18876-18880
Number of pages5
JournalJournal of Physical Chemistry B
Volume109
Issue number40
DOIs
StatePublished - 13 Oct 2005

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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