测量薄膜驻极体内注入电荷平均深度的新方法

A New Method for Determination of Depth of Injected Charges in Film Electrets

不少科学工作者在驻极体注入电荷平均深度的测量方面做了很多工作,但测量所用的设备、技术都很复杂,如激光脉冲法等。若用短路TSC测量,为了保持样品与电极接触良好,必须进行电极涂敷,这样就破坏了原有的电荷分布。为此,我们用开路TSC方法对双裸面薄膜驻极体注入电荷的深度进行测定,取得了良好的结果。 1实验原理将两面不蒸金的薄膜驻极体置于上、下电极之间,但不与上、下电极相接触(见图1)。在加热过程中。

This paper is mainly concerned with OPEN TSC method. The formula used to calculate the depth of injected charges in polymer film is deduced. The depth of charges near the upper surface of the film was measured.