Polyethylene terephthalate (PET) bulk film analysis using C60+, Au3+, and Au+ primary ion beams

被引:11
作者
Conlan, X. A.
Gilmore, I. S.
Henderson, A.
Lockyer, N. P.
Vickerman, J. C.
机构
[1] Univ Manchester, Sch Chem Engn & Analyt Sci, Surface Anal Res Ctr, Manchester M60 1QD, Lancs, England
[2] Natl Phys Lab, Ctr Opt & Analyt Measurement, Teddington TW11 0LW, Middx, England
基金
英国工程与自然科学研究理事会;
关键词
polyethylene terephthalate; C-60(+); Au-3(+); Au+; yield; damage study;
D O I
10.1016/j.apsusc.2006.02.068
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 damage characteristics of polyethylene terephthalate (PET) have been studied under bombardment by C-60(+), Au3+ and Au+ primary ions. The observed damage cross-sections for the three ion beams are not dramatically different. The secondary ion yields however were significantly enhanced by the polyatomic primary ions where the secondary ion yield of the [M + H](+) is on average 5 x higher for C-60(+) than Au3+ and 8 x higher for Au3+ than Au+. Damage accumulates under Au+ and Au3+ bombardment while C-60(+) bombardment shows a lack of damage accumulation throughout the depth profile of the PET thick film up to an ion dose of similar to 1 x 10(15) ions cm(-2). These properties of C-60(+) bombardment suggest that the primary ion will be a useful molecular depth profiling tool. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:6562 / 6565
页数:4
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