Planar nematic layers of 5CB oriented by ‘‘sliding on’’ nanolayers of PTFE were studied by electrooptic methods. Deposited layers have been characterized by AFM and polarizing videomicroscopy. By using a drop method it was established that the preferred director alignment is tilted opposite to the sliding direction. In some of these samples an unusual modulated domain pattern after switching off a prolonged a.c. excitation was observed for the first time. A possible relation between the domain origin and loosely deposited PTFE layers was suggested.
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|Titolo:||Pretilted nematic layers of 5CB on PTFE treated glass supports|
|Data di pubblicazione:||2007|
|Citazione:||Pretilted nematic layers of 5CB on PTFE treated glass supports / Marinov, Y; D'Elia, S; PETROV A., G; Versace, Consolato Carlo; Scaramuzza, Nicola. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1542-1406. - 465(2007), pp. 301-308.|
|Appare nelle tipologie:||1.1 Articolo in rivista|