等温电荷理论及其检测固体介质中的陷阱分布

• 作 者: 杨百屯 屠德民 刘耀南
• 机 构: 西安交通大学,西安交通大学,西安交通大学
• 出 处: 应用科学学报
• 发表日期: 1992年03期
• 关键词: 固体介质 载流子 陷阱 电介质 电荷 表面电位 空间电荷 空穴 子性 检测

从一级陷阱化模型出发,推导出可用于检测固体介质中陷阱分布的等温电荷方程.基于固体介质在电场下注入载流子形成的空间电荷位置分布形式,提出用表面电位技术分开电子性和空穴性陷阱的实验方法,从而得到了单载流子陷阱信息.将理论与实验结合,测得了介质聚丙烯(PP)的陷阱分布.文中的理论结果和实验方法对于研究固体介质的陷阱信息具有一定意义.

Based on the first-order trap model, the isothermal charge equation that can be used to detect the trap distribution in solid media is derived. Based on the spatial charge location distribution formed by charge carrier injection under the electric field, the surface potential technique is proposed to separate the electronic and Hole traps experimentally, the single-carrier traps information is obtained.The trap and the distribution of the medium polypropylene (PP) are measured by the combination of theory and experiment.The theoretical and experimental results in this paper are very useful for the study of trap information of solid media Has some significance.