Dissociative scattering of fluorocarbon ions from a liquid surface at hyperthermal incident energies

被引：31

作者：

Koppers, WR ^{[1
]}

Gleeson, MA ^{[1
]}

Lourenço, J ^{[1
]}

Weeding, TL ^{[1
]}

Los, J ^{[1
]}

Kleyn, AW ^{[1
]}

机构：

[1] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 05期

关键词：

D O I：

10.1063/1.477979

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：

The dissociative scattering of CF+, CF2+ and CF3+ ions from a perfluoropolyether (PFPE) surface is explored across the hyperthermal incident energy range 50 to 220 eV. A comparative study on internal energy uptake efficacy and on translational energy transfer to the surface in scattering from the PFPE surface is presented. In addition, measurements are performed on C+ scattering in order to examine the energy transfer to the PFPE liquid surface in more detail. The CF3+ ions take up more internal energy as a function of translational energy transfer in the collision than the CF2+ and the CF+ ions. Furthermore, a detailed analysis and discussion is presented on the surface effective mass as a function of incident (fluoro)carbon ion mass. The analysis is based on elastic scattering from a single group. The results are remarkably different from ion/metal surface scattering. (C) 1999 American Institute of Physics. [S0021-9606(99)71005-6].

引用

页码：2588 / 2596

页数：9

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