Abderrahmen Asma, Romdhane Fayda Fekih, Ouada Hafedh Ben, Gharbi Abdelhafidh
Laboratoire de la matière molle, Faculté des sciences, Tunis, Tunisia.
Laboratoire de physique et chimie des interfaces, Faculté des sciences, 5000 Monastir, Tunisia.
Sci Technol Adv Mater. 2008 Jun 12;9(2):025001. doi: 10.1088/1468-6996/9/2/025001. eCollection 2008 Apr.
We investigate the electrical behavior of a symmetric liquid crystal (LC) cell: elecrode-silane-LC-silane-electrode. The silane (chlorodimethyloctadecyl-silane) layer induces a homeotropic orientation of the nematic liquid crystal (NLC) molecules. The wettability technique is used to detect the change of the surface energy of the electrode upon cleaning and silane layer deposition. We report on the dynamic impedance measurements of the nematic liquid crystal cell. It is found that the silane alignment layer has a blocking effect on the liquid crystal (LC) cell. We also study the relaxation behavior of the cell which is later assimilated as an electrical equivalent circuit.
我们研究了一种对称液晶（LC）盒的电学行为：电极-硅烷-LC-硅烷-电极。硅烷（氯二甲基十八烷基硅烷）层诱导向列型液晶（NLC）分子垂直排列。采用润湿性技术检测清洗和沉积硅烷层后电极表面能的变化。我们报道了向列型液晶盒的动态阻抗测量结果。发现硅烷取向层对液晶（LC）盒有阻挡作用。我们还研究了该盒的弛豫行为，随后将其等效为一个等效电路。
