Marino, Antigone and Santamato, Enrico and Abbate, Giancarlo (2009) Ellipsometric study of vertically aligned liquid crystals. [Rivista]

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Abstract

The director tilt angle distribution in vertically aligned nematic liquid crystal displays has been investigated by means of variable angle spectroscopic ellipsometry. Liquid crystal vertical alignment has been realized by thermal evaporation of SiOx. By changing the deposition angle, it is possible to control the pretilt angle. The director profile inside the sample was inferred by reflection and transmission ellipsometric measurements. The tilt angle distribution inside the cell versus the applied voltage is reported and eventually, comparing it with the simulations from the elastic theory, the anchoring energy has been obtained.

Item Type: Rivista
Uncontrolled Keywords: cristalli liquidi, fotonica
Depositing User: ing Paolo Nicastro
Date Deposited: 21 Oct 2010 06:57
Last Modified: 30 Apr 2014 19:43
URI: http://www.fedoa.unina.it/id/eprint/7659

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