Chinese Journal of Liquid Crystals and Displays, Volume. 39, Issue 3, 289(2024)
Modulation of smectic liquid crystals superstructures under multiple external fields
Fig. 1. Schematic diagram of the structure and line defects of SFCD
Fig. 2. Influence of spin-coating speeds on FCD and Zigzag structures under homogeneous alignment. (a) 2 000 r/min; (b) 40 00 r/min; (c) 5 000 r/min; (d) 5 500 r/min; (e) 6 000 r/min; (f) 7 000 r/min; (g) 9 000 r/min; (h) 11 000 r/min. The scale bar is 10 μm.
Fig. 3. Influence of spin-coating speeds on FCD and Zigzag structures under orthogonal binary photoalignment. (a) 3 000 r/min; (b) 7 000 r/min; (c) 11 000 r/min. The scale bar is 10 μm.
Fig. 4. Influence of spin-coating speeds on FCD and Zigzag structures under radial continuous gradient photoalignment. (a) 3 000 r/min; (b) 7 000 r/min; (c) 11 000 r/min. The scale bar is 20 μm.
Fig. 5. Imaging function of the polymer-stabilized smectic liquid crystal FCD microlens array. (a) Setup of the imaging system; (b) Textures of imaging of the FCD microlens array without external electric field. The scale bar is 10 μm.
Fig. 6. Dynamic modulation of the polymer-stabilized smectic liquid crystal FCD microlens array under the electric stimulus. The scale bar is 5 μm.
Fig. 7. Phase transition process of chiral liquid crystal superstructures near the transformation point under homogeneous alignment versus temperature. The scale bar is 10 μm.
Fig. 8. Rotation angle of three fingerprint-like topological defect structures as a function of temperature
Fig. 9. Photoresponses of chiral liquid crystal superstructures under Q-plate patterned photoalignment and changes in FCD arrays before and after light-driving. (a) Smectic LC FCD superstructure(before photo stimuli),the scale bar is 50 μm; (b) Cholesteroid fingerprint texture(before photo stimuli),the scale bar is 50 μm; (c) Disappearance of cholesteroid fingerprint texture(after photo stimuli),the scale bar is 75 μm; (d) Smectic LC FCD superstructure (after photo stimuli),the scale bar is 75 μm.
Fig. 10. Textures of the chiral liquid crystal superstructures under Q-plate photopatterning before and after light stimulation. The scale bar is 75 μm.
Fig. 11. Superstructures of chiral liquid crystal versus temperature under (a) Archimedean spiral (The scale bar is 75 μm) and (b) polarizing grating patterned photoalignment (The scale bar is 50 μm).
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Han ZHANG, Longyang WANG, Bohan ZHU, Zeyu WANG, Yang WEI, Lingling MA, Yanqing LU. Modulation of smectic liquid crystals superstructures under multiple external fields[J]. Chinese Journal of Liquid Crystals and Displays, 2024, 39(3): 289
Category: Research Articles
Received: Feb. 3, 2024
Accepted: --
Published Online: Apr. 29, 2024
The Author Email: Yang WEI (yangwei20630@163.com), Lingling MA (malingling@nju.edu.cn)