☆ 4.8 Article

Sparse multiwall carbon nanotube electrode arrays for liquid-crystal photonic devices

ADVANCED MATERIALS (2008)

Journal

ADVANCED MATERIALS

Volume 20, Issue 2, Pages 363-+

Publisher

WILEY-V C H VERLAG GMBH

DOI: 10.1002/adma.200701910

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Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter

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Abstract

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 mu m pitch micro-optical elements.

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