气液界面上由于不溶膜的存在而引起水面电势的变化。若水面上的电势为V0,水面上有不溶膜后的电势为V,表面电势ΔV=(V0-V),其值可高达几百毫伏的数量级。对于界面上形成的可溶性膜同样存在界面电势。表面电势由测定液体表面和金属探针表面之间的接触电势而得。具体有针电极法和振荡电极法。由表面电势的测定可得到不溶膜是否均匀以及膜上的分子如何排列的有关信息。
CMC选择的是日本广岛大学(Hiroshima University)开发的HiSIM-RF表面电势(surface potential)SP..
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The mechanism involve in: (1) The detrapping process of electron trapped on the trap site was accelerated by heating, so the surface potential was reduced and charge effect was gradually eliminated.
机理涉及:(1)加热加速了绝缘体表面的被捕获电子从势阱中释放的过程,从而减小表面电势,消除了荷电效应。
参考来源 - 高温扫描电子显微分析方法及应用研究·2,447,543篇论文数据,部分数据来源于NoteExpress
在介质表面存在电荷积累引起的充电效应,这降低了介质表面电势和离子注入能量;
There exist the charging effects because of charge accumulation at the surface of dielectric, which decrease the dielectric surface potential and the ion implant energy.
模型包括离子连续性方程、动量方程和泊松方程,特别是提出了可以自洽地决定绝缘基板表面电势、表面电荷密度和鞘层厚度关系的等效电路方程。
The equivalent circuit model gives the instantaneous relationship between the sheath thickness and the surface potential at an insulating substrate placed on the pulse-biased electrode.
Rather than by forming an image or a picture you put electrodes on the surface of the body and measure the electrical potential as a function of position on the body.
它并不对人进行直接的造影,而是将电极放到身体表面,通过测量该位置电势能,表征该部位的生理状态
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