Time-programmed helix inversion in phototunable liquid crystals

Time-programmed helix inversion in phototunable liquid crystals

Doping cholesteric liquid crystals with photo-responsive molecules enables controlling the colour and polarisation of the light they reflect. However, accelerating the rate of relaxation of these photo-controllable liquid crystals remains challenging. Here we show that the relaxation rate of the cho...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2013-05, Vol.49 (39), p.4256-4258
Hauptverfasser: Asshoff, Sarah J, Iamsaard, Supitchaya, Bosco, Alessandro, Cornelissen, Jeroen J L M, Feringa, Ben L, Katsonis, Nathalie
Format: Artikel
Sprache:eng
Schlagworte:
Alkenes - chemical synthesis
Alkenes - chemistry
Cholesteric liquid crystals
Color
Colour
Dopants
Doping
Inversions
Kinetics
Liquid crystals
Liquid Crystals - chemistry
Stereoisomerism
Time Factors
Ultraviolet Rays
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Beschreibung
Zusammenfassung:Doping cholesteric liquid crystals with photo-responsive molecules enables controlling the colour and polarisation of the light they reflect. However, accelerating the rate of relaxation of these photo-controllable liquid crystals remains challenging. Here we show that the relaxation rate of the cholesteric helix is fully determined by helix inversion of the molecular dopants.
ISSN:1359-7345
1364-548X
DOI:10.1039/c2cc37161h