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Short pitch cholesteric electro-optical device stabilized by nonuniform polymer network
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10.1063/1.1897057
/content/aip/journal/apl/86/16/10.1063/1.1897057
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/16/10.1063/1.1897057
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic illustration of the nonuniform polymer network formation by the selective UV polymerization: (a) before polymerization. (b) First step: double surface stabilization obtained by UV irradiation of both sides of the sample with . (c) Second step: bulk stabilization after UV illumination with .

Image of FIG. 2.
FIG. 2.

SEM image of the fibrilous polymer network formed on the substrate surface. The network has regular periodicity of about corresponding to the periodicity of the cholesteric material.

Image of FIG. 3.
FIG. 3.

Photographs of the cell, with ULH texture over the electrode area, taken between crossed polarizers at different voltages; (a) , (b) , and (c) . At high applied voltage, the cholesteric texture above the electrodes is unwound and therefore appears totally black without any residual birefringence coming from the polymeric network.

Image of FIG. 4.
FIG. 4.

Electro-optic response for different applied voltages on application of a triangle wave voltage with frequency of .

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/content/aip/journal/apl/86/16/10.1063/1.1897057
2005-04-15
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Short pitch cholesteric electro-optical device stabilized by nonuniform polymer network
http://aip.metastore.ingenta.com/content/aip/journal/apl/86/16/10.1063/1.1897057
10.1063/1.1897057
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