Low-voltage blue-phase liquid crystals with polyaniline-functionalized graphene nanosheets

A small amount of polyaniline functionalized graphene (G–PANI, 0.03–2.00%) nanosheets was doped into conventional polymer-stabilized blue phase liquid crystals (PS-BPLCs), and the electro-optical property effects were studied. The driving capability of BPLCs can be much improved in that the Kerr constant of BPLCs doped with 0.05 wt% G–PANI is increased by ∼55% compared with that of BPLCs without G–PANI. Meanwhile, this composite exhibits no degradation of electro-optical properties, such as response time, hysteresis and residual birefringence.

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