Efficient barrier for charge injection in polyethylene by silver nanoparticles/plasma polymer stack
Efficient barrier for charge injection in polyethylene by silver nanoparticles/plasma polymer stack
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DOI：
10.1063/1.4896678
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发表时间：
2014-09
影响因子：
4
通讯作者：
L. Millière;K. Makasheva;C. Laurent;B. Despax;G. Teyssèdre
中科院分区：
文献类型：
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作者：
L. Millière;K. Makasheva;C. Laurent;B. Despax;G. Teyssèdre
从金属/绝缘体接触的电荷注入是促进聚合物绝缘中空间电荷形成的过程，聚合物绝缘主要用于高压设备中的厚层。内部电荷扰动场分布，并且可以通过其静电效应或通过在电荷复合和/或热电子效应下发起的能量过程导致灾难性故障。由于聚合物链和电极之间的接触的复杂性，在聚合物绝缘中的注入仍然描述不好。从金属功函数和聚合物电子亲和力导出的势垒高度不能提供测量的良好描述[Taleb等人，IEEE Trans. Dielectr.电气绝缘20，311-320（2013）]。考虑到难以描述的接触性能和需要防止电荷注入聚合物的高电压应用，我们开发了一种替代方法，通过定制的界面特性的银纳米粒子（AgNP…
Charge injection from a metal/insulator contact is a process promoting the formation of space charge in polymeric insulation largely used in thick layers in high voltage equipment. The internal charge perturbs the field distribution and can lead to catastrophic failure either through its electrostatic effects or through energetic processes initiated under charge recombination and/or hot electrons effects. Injection is still ill-described in polymeric insulation due to the complexity of the contact between the polymer chains and the electrodes. Barrier heights derived from the metal work function and the polymer electronic affinity do not provide a good description of the measurements [Taleb et al., IEEE Trans. Dielectr. Electr. Insul. 20, 311–320 (2013)]. Considering the difficulty to describe the contact properties and the need to prevent charge injection in polymers for high voltage applications, we developed an alternative approach by tailoring the interface properties by the silver nanoparticles (AgNP...