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James Cattle, Peng Bao, Jonathan P. Bramble, Richard J. Bushby, Stephen D. Evans, John E. Lydon and Daniel J. Tate Controlled Planar Alignment of Discotic Liquid Crystals in Microchannels Made Using SU8 Photoresist Advanced Functional Materials 23

Version of Record online: 25 JUN 2013 | DOI: 10.1002/adfm.201301613

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Capillary action can be used to fill SU8 microchannels with a discotic liquid crystal. The liquid crystal aligns with the column director in-plane and across the channels. SU8-capped electrodes allow the current–voltage characteristics of the liquid crystal to be addressed and, in the case of the rectangular columnar phase, there is a separation between two types of domain with equal and opposite rotations of the optical axes.

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