Switchable fluorescent liquid crystals

Salamonczyk, M.; Kovarova, A.; Svoboda, J.; Pociecha, D.; Gorecka, E.
October 2009
Applied Physics Letters;10/26/2009, Vol. 95 Issue 17, p171901
Academic Journal
Properties of new fluorescent, mesogenic compounds bearing [2]benzothiophene moiety are presented. Materials show strong fluorescence of green or red light with quantum yield up to 30%, in liquid crystalline phases the emitted light is strongly polarized. For material forming ferroelectric liquid crystal or doped into polar smectic matrix, the possibility of controlling fluorescence light intensity through the application of electric field is shown.


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