Measuring and modeling transient insulator response to charging:: the contribution of surface potential studies
Measuring and modeling transient insulator response to charging:: the contribution of surface potential studies
复制标题
DOI：
10.1109/tdei.2005.1522188
复制
发表时间：
2005-10-01
影响因子：
3.1
通讯作者：
Molinié, P
中科院分区：
文献类型：
--
作者：
Molinié, P
在过去的四十年里，表面电位的研究对我们理解绝缘物理学有什么贡献？这一领域出现了哪些有前途的技术？本审查涵盖了工业背景下占绝缘材料的表面电位测量的发展，他们已经实施的方式，以及各种各样的模型来解释充电和潜在的衰减机制。几种极化或输运过程可能导致电位的衰减。虽然大多数模型最初源于静电学和半导体物理学，但围绕迁移率的概念，聚合物实验需要“热力学”模型，描述渐进的电荷脱陷。我们还强调，在这里，三个主要的不同的物理过程可能涉及潜在的衰减（偶极弛豫，色散传输，缓慢脱陷）可以导致无序材料相同的时间响应，这里的挑战是设计创造性的新程序来区分它们。这一结论也适用于大多数无序材料的电学测量。开尔文探针显微术、返回电压和热刺激电位测量也说明了表面电位测量技术的多种形式的发展，并展望了其发展前景。
What has been the contribution of surface potential studies during the last four decades to our understanding of insulation physics? Which are the promising techniques emerging in this field? The present review covers the industrial context accounting for the development of surface potential measurements on insulating materials, the way they have been implemented, as well as the great variety of models produced to explain the charging and potential decay mechanisms. Several polarization or transport processes can be responsible for the decay of the potential. Though most of the models initially stemmed from electrostatics and semiconductor physics, around the notion of mobility, experiments on polymers required "thermodynamic" models, describing progressive charge detrapping. We also underline here that the three main different physical processes likely to be involved in the potential decay (dipolar relaxation, dispersive transport, slow detrapping) can lead in disordered materials to the same time response, the challenge being here is to design inventive new procedures to distinguish them. This comment also applies to most of electrical measurements on disordered materials. Kelvin probe microscopy, return voltage and thermostimulated potential measurements also illustrate the multiform development of surface potential measurement techniques, as their future prospects.