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PL emission spectra of pure FLC 6304 material excited with 333 nm at various voltages.
Schematic showing helix unwinding process in DHFLC material: (a)helix deformation at low voltages (0–3 V), (b) co-existence of unwound and helical parts (4–10 V), and (c) complete helix unwinding above 10 V (enhanced online). [URL: http://dx.doi.org/10.1063/1.4773366.1] [URL: http://dx.doi.org/10.1063/1.4773366.2] [URL: http://dx.doi.org/10.1063/1.4773366.3]10.1063/1.4773366.110.1063/1.4773366.210.1063/1.4773366.3
Variation of PL intensity excited at 333 nm and response time (inset) with the applied voltage of FLC 6304 material.
Electrical switching of PL intensity of FLC 6304 material: (a) photos showing light emission from LC sample cells under excitation. (b) Time-dependent switching of PL intensity in response to several cycles of field-off (0 V μm−1) and field-on (6 V μm−1), inset shows the corresponding emission spectra.
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