Pretilt Preference of Liquid Crystals on Ion- Beam- Treated Polyimide Layer Surfaces

Title
Pretilt Preference of Liquid Crystals on Ion- Beam- Treated Polyimide Layer Surfaces
Author(s)
곽진석손필국[손필국]김태형[김태형]최석원[최석원]김성수[김성수]
Keywords
ALIGNMENT; FILM
Issue Date
201312
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.583, no.1, pp.104 - 108
Abstract
The pre-tilt direction of a liquid crystal (LC) on a polyimide (PI) surfaces obtained by using a contact angle method is systematically examined. We found from scanning probe microscopy (damping force microscopy and friction force microscopy) data that ion-beam-treated PI surfaces have an asymmetrical morphology which determines the preferred direction of the LC. Azimuthally various contact angles on an ion-beam-treated PI surface are connected deeply with modified surface morphologies. As a result, the effect of LC pre-tilt direction on ion-beam-treated PI is to lower the contact angle direction.
URI
http://hdl.handle.net/YU.REPOSITORY/28266http://dx.doi.org/10.1080/15421406.2013.844311
ISSN
1542-1406
Appears in Collections:
이과대학 > 물리학과 > Articles
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