Properties of metal-polymer-metal structures observed with space charge mapping techniques — II. Radiation induced space charge distributions

Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI:10.1109/CEIDP.1986.7726432

S. R. Kurtz, R. Anderson

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Abstract

The techniques described in the preceding paper are utilized to observe the space charge distributions that are generated in metal-polymer-metal samples subjected to x-ray irradiation in the presence of an electric field. Our previous radiation-induced conductivity studies on poly(ethylene terephthalate) and doped poly(ethylene terephthalate) films have shown that holes are immobile in that material and electrons are the dominant photocarrier species. Consistent with those measurements, we find a positive space charge distribution trapped adjacent to the cathode in poly(ethylene terephthalate) samples after x-ray irradiation. The width of that heterocharge distribution is compared with the estimated electron Schubweg. Ongoing experiments studying the dose and electric field dependence of the space charge formation will be described. These measurements reveal injection currents that limit heterocharge formation. The presence of space charge limited currents in radiation-induced conductivity data will be examined.

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用空间电荷映射技术观察金属-聚合物-金属结构的性质- II。辐射诱导的空间电荷分布

在前面的文章中描述的技术被用来观察在电场存在的x射线照射下金属-聚合物-金属样品中产生的空间电荷分布。我们之前对聚(对苯二甲酸乙酯)和掺杂聚(对苯二甲酸乙酯)薄膜的辐射诱导电导率研究表明，该材料中的空穴是不移动的，电子是主要的光载流子。与这些测量结果一致，我们发现x射线照射后聚对苯二甲酸乙酯样品中阴极附近有一个正空间电荷分布。该异电荷分布的宽度与估计的电子舒伯重进行了比较。正在进行的实验研究剂量和电场对空间电荷形成的依赖将被描述。这些测量揭示了限制异电荷形成的注入电流。空间电荷限制电流在辐射诱导电导率数据中的存在将被检查。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986

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