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摘要
In this study, a novel, to the best of our knowledge, dye-doped dual-frequency liquid crystal multi-stable smart window is proposed. A chiral dopant with appropriate content was introduced into dye-doped dual-frequency liquid crystals to achieve an initial 180 & DEG; twisted state. These liquid crystals can be switched to a nematic phase or a 360 & DEG; twisted state by controlling the magnitude and frequency of the applied voltage. These nematic phase and 360 & DEG; twisted states can exist stably for a long time because of the backflow effect and the anisotropic nature of the dual-frequency liquid crystal material. Due to the optical waveguide effect of dye-doped liquid crystals in the long-pitch state, the transmittance was different in nematic phase, 180 & DEG;, and 360 & DEG; twisted three zero-field stabilized absorption states. Finally, a multi-stable smart window is developed to switch between three zero-field stabilized absorption and scattering states.& COPY; 2023 Optica Publishing Group
