VALENCE-BAND STATES OF ION-BOMBARDED POLYSTYRENE

被引：13
|
作者：
TERRASI, A
FOTI, G
HWU, Y
MARGARITONDO, G
机构：
[1] UNIV CATANIA,DIPARTMENTO FIS,I-95129 CATANIA,ITALY
[2] UNIV WISCONSIN,CTR SYNCHROTRON RADIAT,STOUGHTON,WI 53589
[3] ECOLE POLYTECH FED LAUSANNE,PHB ECUBLENS,DEPT PHYS,CH-1015 LAUSANNE,SWITZERLAND
来源：
JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 03期
关键词：
D O I：
10.1063/1.349491
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ion-bombarded polystyrene with a 0.5-keV Ar+ beam has been investigated by means of photoelectron spectroscopy performed with synchrotron radiation. After a dose of 10(15) ions/cm2 the evolution of the valence band of the bombarded sample towards an amorphous carbonlike configuration is reported. From the analysis of valence-band spectra we estimated the out-diffusion of hydrogen and showed that its electronic states remain well identified and stable until the hydrogen presence is about 35% with respect to the pristine sample. Finally, comparison with mass spectroscopy measurements on deuterated polystyrene has been performed to determine hydrogen evolution during the ion irradiation.
引用
收藏
页码：1885 / 1887
页数：3
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