Dynamically Controlled Iridescence of Cholesteric Cellulose Nanocrystal Suspensions Using Electric Fields
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Peer-reviewed
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Article
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Abstract
Cellulose nanocrystal suspensions in apolar solvent spontaneously form iridescent liquid crystalline phases but the control of their macroscopic order is usually poor. The use of electric fields can provide control on the cholesteric orientation and its periodicity, allowing macroscopic sample homogeneity and dynamical tuning of their iridescent hues, and is demonstrated here.
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Keywords
cellulose nanocrystals, cholesteric, colloidal liquid crystals, electric field, iridescence
Journal Title
Advanced Materials
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Journal ISSN
0935-9648
1521-4095
1521-4095
Volume Title
29
Publisher
Wiley
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Sponsorship
The authors acknowledge funding by the French National Research Agency under grant agreement ANR-08-NANO-P235-36 and B.F-P. acknowledges the Travel Grant COST-STSM-FP1205-30247.