COMPARATIVE-STUDY OF ESD OF POSITIVE AND NEGATIVE-IONS FROM CO ON TUNGSTEN

被引:18
作者
HOCK, JL [1 ]
CRAIG, JH [1 ]
LICHTMAN, D [1 ]
机构
[1] UNIV WISCONSIN,SURFACE STUDIES LAB,MILWAUKEE,WI 53201
关键词
D O I
10.1016/0039-6028(79)90167-5
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 has been demonstrated from the CO/W system. Ion yields are shown to be approximately a factor of 50 smaller for O- than for O+. The O- species is shown to originate from both α-CO adsorption states with an estimated 80% of the O- signal coming from the CO+ producing α-state. Preliminary results indicate that the ion energy distribution for O- is broader and peaks at a higher energy than for the O+ ions. © 1979.
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收藏
页码:31 / 42
页数:12
相关论文
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