Space charge dynamics in electron beam-irradiated PMMA

被引：2
|
作者：
Zheng F. [1 ]
Zhang Y. [1 ]
Gong B. [1 ]
Chen L. [1 ]
Xu J. [2 ]
Wang C. [2 ]
机构：
[1] Pohl Institute of Solid State Physics, Tongji University
[2] School of Chemistry and Chemical Engineering, Shanghai University
来源：
Frontiers of Materials Science in China | 2007年 / 1卷 / 1期
基金：
中国国家自然科学基金;
关键词：
Conductivity; Electron beam; Organic polymer materials; Pressure wave propagation method; Space charge breakdown;
D O I：
10.1007/s11706-007-0020-2
中图分类号：
学科分类号：
摘要：
In this study, space charge was introduced into polymethyl methacrylate (PMMA) samples by electron beam. The effect of the electron beam on the conductivity and the permittivity of the PMMA sample were investigated, and the breakdown mechanism of the samples during charge detrapping was also studied. The experimental results clearly show that not only space charge injection but also space charge detrapping can lead to the breakdown of the samples. The dynamics of injected charges in the radiated PMMA samples and the mechanism of the breakdown resulting from the rapid discharge are discussed. © Higher Education Press 2007.
引用
收藏
页码：109 / 113
页数：4
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