俘获
化学
扩散
阿累尼乌斯方程
聚合物
载流子
场强
航程(航空)
电荷(物理)
大气温度范围
电子迁移率
溶剂
分析化学(期刊)
化学物理
活化能
热力学
凝聚态物理
材料科学
物理化学
复合材料
有机化学
磁场
物理
生物
量子力学
生态学
作者
Arnost Reiser,M. W. B. Lock,John R. Knight
出处
期刊:Transactions of The Faraday Society
[The Royal Society of Chemistry]
日期:1969-01-01
卷期号:65: 2168-2168
被引量:81
摘要
The behaviour of thin polymer films charged by a negative corona discharge in air can be described quantitatively in terms of diffusional migration and trapping of extrinsic charge carriers injected into the material. Up to a field strength of about 105 V cm–1 charge migration is characterized by a field-independent mobility. At higher fields the mobility becomes an approximately linear function of field strength. In the polymers investigated mobilities range from 10–9 to 10–13 cm2 V–1 s–1, corresponding to diffusion coefficients of 10–10 to 10–14 cm2 s–1. Mobilities increase with the solvent content of the polymer and with temperature. The temperature dependence of mobility is adequately described by an Arrhenius equation with activation energies between 10 and 40 kcal mol–1.
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