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Issue 34, 2015
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Large range electrically-induced reflection notch tuning in polymer stabilized cholesteric liquid crystals

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Abstract

This communication reports large magnitude (exceeding 1500 nm) and reversible reflection notch tuning in polymer stabilized cholesteric liquid crystals (PSCLCs) formulated with negative dielectric anisotropy (−Δε) hosts upon application of a direct current (DC) field. Selective and repeatable tuning ranges of 100 nm to 400 nm are demonstrated. The reflection changes are dictated by a nonlinear distortion of the pitch across the cell thickness, which is associated with electromechanical displacement of the polymer stabilizing network. The electro-optical control of the selective reflection in −Δε PSCLCs may have potential use in optics, displays, and other commercial products.

Graphical abstract: Large range electrically-induced reflection notch tuning in polymer stabilized cholesteric liquid crystals

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Article information


Submitted
11 May 2015
Accepted
22 Jul 2015
First published
06 Aug 2015

J. Mater. Chem. C, 2015,3, 8788-8793
Article type
Communication

Large range electrically-induced reflection notch tuning in polymer stabilized cholesteric liquid crystals

K. M. Lee, V. P. Tondiglia, T. Lee, I. I. Smalyukh and T. J. White, J. Mater. Chem. C, 2015, 3, 8788
DOI: 10.1039/C5TC01320H

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