Electron-induced synthesis of ozone in a dioxygen matrix

S. Lacombe, F. Cemic, K. Jacobi, M. N. Hedhili, Y. Le Coat, R. Azria, M. Tronc

Research output: Contribution to journalArticlepeer-review

56 Scopus citations


Ozone (O3) was synthesized in the condensed phase induced by electron bombardment of multilayer films of molecular oxygen condensed at temperatures below 30 K on metal surfaces. O3 formation was demonstrated by the observation of the asymmetric stretching (ν3) and bending (ν2) normal modes of vibration in a high-resolution electron energy-loss spectroscopy experiment, and by characteristic changes in electron-stimulated desorption of O-. The threshold electron energy for the O3 formation is found at 3.5+/-0.2 eV. It corresponds to the formation of O(3P) associated with O-\(2P\) by dissociative electron attachment at condensed O2, followed by the third body reaction O+O2+O2→O3+O2. Above 5.1 eV bombarding energy, dissociative excitation of the O*2 (c1Σ-u, C3Δu, A3Σ+u, B3Σ-u) states is the main source of atomic oxygen O(3P) or O(1D) involved in the O3 synthesis.

Original languageEnglish (US)
Pages (from-to)1146-1149
Number of pages4
JournalPhysical Review Letters
Issue number6
StatePublished - Jan 1 1997
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Electron-induced synthesis of ozone in a dioxygen matrix'. Together they form a unique fingerprint.

Cite this