Sparse Multiwall Carbon Nanotube Electrode Arrays for Liquid-Crystal Photonic Devices

A new class of devices based on a hybrid combination of two different materials, nanotubes and liquid crystals, is presented. An array of individual vertically aligned multiwall carbon nanotubes creates a Gaussian electric field profile which reorients a nematic liquid crystal. The variation in refr...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2008-01, Vol.20 (2), p.363-366
Main Authors: Wilkinson, T. D., Wang, X., Teo, K. B. K., Milne, W. I.
Format: Article
Language:English
Subjects:
Arrays
Carbon nanotubes
Carbon nanotubes, multiwalled
Electro-optical materials
Hybrid materials
Liquid crystals
multiwalled
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Summary:A new class of devices based on a hybrid combination of two different materials, nanotubes and liquid crystals, is presented. An array of individual vertically aligned multiwall carbon nanotubes creates a Gaussian electric field profile which reorients a nematic liquid crystal. The variation in refractive index acts like a graded index optical element which can be varied electrically. Results are presented from a device fabricated with 10 μm pitch micro‐optical elements.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200701910