Electrically modulated fluorescence in optically active polymer stabilised cholesteric liquid crystal shutter

An optical tunable shutter is fabricated by the dispersion of chiral dopant into nematic liquid crystal mixture and is stabilised by UV-cured fibrous network. These fibrous aggregates provide stability to the liquid crystal molecules and show highly fluorescent scattered state. The electrical tuning of photoluminescence in optical shutter shows a decrease in fluorescence intensity during stage triggering from homogeneous to homeotropic and improves the optical contrast of the optical devices, which can be used as switchable windows with desirable optimum voltage.