绝缘子的瞬态电压和注入

R. Coelho, L. Levy, D. Sarrail
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引用次数: 0

摘要

作者讨论了适用于注入电荷密度超过本征电荷密度的薄样品的“局部”模型。在这种“电不均匀”样品上给出了实验结果。实验是在空间模拟室内对卡普顿样品进行的。如果样品的初始场不超过某个临界值,则恒定迁移率假设是有效的。通过比较体积电荷和表面电荷的衰减曲线,可以对注入系数及其演化进行评估。这反过来可能有助于提高对介电材料注入过程的理解,并评估表面处理的影响
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Transient voltage and injection in insulators
The authors discuss 'local' models applicable to thin samples in which the injected charge density exceeds the intrinsic one. Experimental results are presented on such 'electrically inhomogeneous' samples. The experiment was performed on a Kapton sample in a space simulation chamber. The constant mobility hypothesis is valid provided that the initial field across the sample does not exceed some critical value. Comparison of the decay curves for bulk and surface charges permits an evaluation of the injection coefficient and its evolution. This in turn may help to improve the understanding of injection processes in dielectric materials, and to assess the effects of surface treatments.<>
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