Measured and simulated transient current in polyethylene terephthalate films below and above the glass transition temperature

被引：8
|
作者：
Saidi-Amroun, N [1 ]
Berdous, S [1 ]
Bendaoud, M [1 ]
机构：
[1] Univ Sci & Technol, Fac Phys, Mat Phys Lab, Algiers, Algeria
来源：
PROCEEDINGS OF THE 2004 IEEE INTERNATIONAL CONFERENCE ON SOLID DIELECTRICS, VOLS 1 AND 2 | 2004年
关键词：
D O I：
10.1109/ICSD.2004.1350309
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Charging and discharging current were measured in polyethylene tereplithalate films (25mum) with electrical field ranging from 24 to 72MV/m and temperature between 40 and 140degreesC. At temperatures far below the glass transition, the current behaviour was interpreted in term of dipolar mechanisms. While, in rubber state, the current deviate from the well-known Curie- Von Schweidler law. This behaviour was explained, assuming an additional current, du to charge injection at the metal-insulator interface. Numerical simulation, when taking into account these two components, can reproduce the change in the current-time shape. Comparison between measured and calculated current gave a good agreement.
引用
收藏
页码：137 / 140
页数：4
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