The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer . 位移电流的机理只对反向偏压或要维持空间电荷层所需要的非常弱的正向偏压条件下的电容器才有用。
2.
The purpose of introducing ferroelectric polymeric pvdf material was to make use of the remanent polarization of ferroelectric materials and to study the effect of the internal field formed in the device during the device worked . the diodes were driven at constant voltage and were also kept under short - circuit or reverse - bias conditions 本文将具有特殊极化性能的铁电高分子材料pvdf引入器件，目的在于利用其电场下其残余极化特性，研究此种器件工作时形成的内电场情况及其对器件稳定性的影响。
