Effects of morphology in electron-stimulated desorption: O- from O-2 condensed on D2O films grown at 15-150 K on Pt

Authors
Azria, R Le Coat, Y Lachgar, M Tronc, M Parenteau, L Sanche, L
Citation
R. Azria et al., Effects of morphology in electron-stimulated desorption: O- from O-2 condensed on D2O films grown at 15-150 K on Pt, SURF SCI, 436(1-3), 1999, pp. L671-L676
Citations number
23
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
436
Issue
1-3
Year of publication
1999
Pages
L671 - L676
Database
ISI
SICI code
0039-6028(19990810)436:1-3<L671:EOMIED>2.0.ZU;2-4
Abstract
Electron-stimulated desorption of O-_ ions from O-2-covered multilayer ice films is investigated as a function of impact energy in the range 6-20 eV. The magnitude of the O-_ signal is found to strongly depend on temperature (15-150 K) of D2O,condensation on Pt,amount of condensed O-2 (0.1-4 ML) and D2O, film thickness (4-100 ML). The results are shown to be related to dif ferent morphologies of the ice layers. (C) 1999 Elsevier Science B.V. All r ights reserved.