Chiral Liquid Crystalline Electronic Systems

Liquid crystals bearing extended ?-conjugated units function as organic semiconductors and liquid crystalline have been studied for their applications in light-emitting diodes, field-effect transistors, solar cells. However, studies on electronic functionalities chiral crystal phases limited so far. Electronic charge carrier transport has confirmed nematic smectic C phases. In the phase, consisting of molecules units, circularly polarized photoluminescence observed within wavelength range reflection band. Recently, electroluminescence from devices based active layers conjugated polymers with twisted structures induced by molecular chirality. The phase oligothiophene derivatives is ferroelectric indicates a bulk photovoltaic effect, which driven spontaneous polarization. This effect also achiral polar are properly assembled. this manuscript, optical functions these reviewed.