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http://dx.doi.org/10.4313/TEEM.2006.7.6.305

Alignment Effect of a Nematic Liquid Crystal on Deposited SiOx Thin-Film Surface with e-beam Evaporation  

Oh, Yong-Cheul (Department of Electrical Engineering, Kwangwoon University)
Lee, Dong-Gyu (Department of Electrical Engineering, Kwangwoon University)
Publication Information
Transactions on Electrical and Electronic Materials / v.7, no.6, 2006 , pp. 305-308 More about this Journal
Abstract
We have studied liquid crystal (LC) aligning capabilities for homeotropic alignment and the control of tilt angles on the $SiO_{x}$ thin film by electron beam evaporation method. A high tilt angle of about $86.5^{\circ}$ was obtained, and also the suitable tilt angle of the NLC on the $SiO_{x}$ thin film at $20{\sim}50\;nm$ thickness with e-beam evaporation can be achieved. The uniform LC alignment on the $SiO_{x}$ thin film surfaces with electron beam evaporation can be achieved. It is considerated that the LC alignment on the $SiO_{x}$ thin film by electron beam evaporation is attributed to elastic interaction between LC molecules and micro-grooves at the $SiO_{x}$ thin film surface created by evaporation.
Keywords
$SiO_{x}$ thin film; Homeotropic LC alignment effect; Nematic liquid crystal; Tilt angle; Electron beam evaporation;
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Times Cited By KSCI : 2  (Citation Analysis)
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