Ionic transport effects in SSFLC cells

Publisher Website
Google Scholar
Abstract
In the surface stabilized ferroelectric liquid crystal cells, low frequency square waves with different DC offsets are applied in order to study the ionic transport properties. Transport equations have been solved numerically, and the results agree with the measurements qualitatively. By using a simple model, we clarify the fact that the measured current is different from the ionic flow current at the interfaces. Our calculation shows that, in cells with insulating alignment layers, due to the existence of ions, the fields at the interfaces can be many times larger than V/d, where V is the applied voltage and d is the spacing. From the calculations we get that the current peak time is roughly d 2/2μV instead of the previous published d 2/μV, where μ is the mobility of the ions.

This publication has 3 references indexed in Scilit: