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HomeSolid State PhenomenaSolid State Phenomena Vols. 181-182Polarizing Optical Microscopic Characterization of...

Polarizing Optical Microscopic Characterization of Nematic Liquid Crystal Confined in Porous Silicon

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Abstract:

With polarizing optical microscopy we have investigated the electro-optic properties of a nematic liquid crystal 4-n-pentyl-4′-cyanobipheny confined in the microchannels of porous silicon. Experimental study shows clearly that the liquid crystal molecules tend to align parallel to the direction of the pore columns in porous silicon. Schlieren textures with S = +1 and +2 disclinations were recorded. Our experimental investigations show that uniaxial alignment, the planar radial and the escaped radial configurations exist around the given microchannels of porous silicon.

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Periodical:

Solid State Phenomena (Volumes 181-182)

Pages:

83-87

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.181-182.83

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Online since:

November 2011

Authors:

Yuan Ming Huang, Qing Lan Ma, Bao Gai Zhai

Keywords:

Escaped Radial Configuration, Liquid Crystal, Micro-Channel, Planar Radial Configuration, Porous Silicon, Uniaxial Alignment

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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