Published January 1, 2016 | Version v1
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Circularly Polarized Luminescence and a Reflective-Photoluminescent Chiral Nematic Liquid Crystal Display Based on an Aggregation-Induced Emission Luminogen

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Chiral nematic liquid crystals (N*LCs) are a kind of smart material that can be obtained directly from cholesteric LCs or from nematic LCs by adding a chiral dopant. As a 1D photonic crystal, [ 1 ] the helical and periodic structure of a N*LC leads to unique optical properties, including selective reflection, circular dichroism (CD), optical rotation, and so on. [ 2–5 ] The most important property of N*LCs is the selective reflection of circularly polarized (CP) light. When N*LCs are sandwiched between two substrates with planar anchoring surfaces, CP light with the same handedness as the helix will be selectively reflected whereas light with opposite handedness will be transmitted.

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