Impact collision ion scattering spectroscopy (ICISS) and neutral impact collision ion scattering spectroscopy (NICISS) at surfaces of organic liquids

被引:97
作者
Andersson, G [1 ]
Morgner, H [1 ]
机构
[1] Univ Witten Herdecke, Inst Expt Phys, D-58448 Witten, Germany
关键词
alkanes; carbon; fomblin; hydroxipropionitrile; iodine; ion scattering spectroscopy; liquid surfaces; low energy ion scattering (LEIS); methylsulfolane; nitrogen; tetrabutylammoniumiodide;
D O I
10.1016/S0039-6028(98)00062-4
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
NICISS and ICISS in the low energy regime (1-5 keV) with helium as a projectile is used to investigate surfaces of organic liquids. We determine qualitatively the composition of the outermost layer with ICISS. The composition of the bulk near to the surface is determined quantitatively with NICISS up to a depth of several 10 Angstrom. The additional loss of energy of the projectiles by low angle scattering and electronic excitation (stopping power) is used to determine the depth of the target atom. We have investigated pure liquids as well as solutions with surface active solutes. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
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页码:138 / 151
页数:14
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