Efficient long-lived circularly polarized luminescence from cholesteric liquid crystalline polymer networks

A series of polymer network films were fabricated via in-situ photopolymerization of cholesteric liquid-crystalline mixtures doped with triphenylamine-based luminophores. The films show efficient long-lived circularly polarized luminescence with luminescence dissymmetry factors up to -0.93, emission lifetimes up to 763 ms and quantum yields up to 80.0%.