Effects of morphology in electron-stimulated desorption:: O- from O2 condensed on D2O films grown at 15-150 K on Pt

被引：19

作者：

Azria, R

Le Coat, Y

Lachgar, M

Tronc, M

Parenteau, L

Sanche, L ^{[1
]}

机构：

[1] Univ Sherbrooke, Fac Med, Canadian Med Res Council Grp Radiat Sci, Sherbrooke, PQ J1H 5N4, Canada

[2] Univ Paris Sud, Collis Atom & Mol Lab, F-91405 Orsay, France

[3] Univ Paris 06, Chim Phys Lab, F-75231 Paris 05, France

来源：

SURFACE SCIENCE | 1999年 / 436卷 / 1-3期

基金：

英国医学研究理事会;

关键词：

amorphous thin films; desorption induced by electronic transitions (DIET); dissociative electron attachment; electron-stimulated desorption (esd); low energy electrons; polycrystalline thin films; water;

D O I：

10.1016/S0039-6028(99)00642-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 different morphologies of the ice layers. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：L671 / L676

页数：6

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