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Self-Assembled Multistable Scattering Mode for Versatile Energy-Saving Smart Windows
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DOI：10.1002/lpor.202301001.png)
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Smart windows are crucial to dynamic control over light transmission to fulfill various demands in energy saving, privacy, and information display; however, most present technologies still perform a single function (often tint or haze adjustment) and require continuous electricity for operation. In this study, novel self-assembled ionic liquid crystals (ILCs) doped with negative cholesteric liquid crystals (CLCs) to offer electrically switchable and stable scattering-mode light modulators are presented. The novel smectic A phase based on the ILCs exhibits high solubility in the adopted nematics, enhancing the LC device's performance in several ways, including improved homogeneity, stable alignment quality, prolonged stability, and simplified fabrication. The LC device can potentially offer a dynamically rapid switching function between stable transparent (imperfect fingerprint textures) states and stable scattering (focal conic textures with small domains) states by using external stimuli and highly maintained multistable states for prolonged periods, even when the external stimuli are removed. The LC device also offers polarization-independent scattering and transparent-mode LC light modulators, low operating voltage, excellent contrast, and broad viewing angles. Its versatility and outstanding field-off stability make it ideal for various applications such as smart lighting, building climate control, energy-saving displays, and augmented reality (AR) glasses. Explore the groundbreaking study on self-assembled ionic liquid crystals and negative cholesteric liquid crystals for energy-saving smart windows. This innovation enables electrically switchable and stable scattering-mode light modulators, offering dynamic control over light transmission. The approach enhances homogeneity, alignment quality, and stability, providing versatile applications in energy-saving windows, privacy control, and advanced display devices.image
Keyword:
cholesterics
dynamic scattering
fingerprint texture
ion, liquid crystal
low power consumption
multistability
see-through display
smart window
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10
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3.7K
被引数:
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