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Preparation and Characterization of Bilayer Polymer-Dispersed Liquid Crystals Doped with Gd 2 O 3 Nanoparticles and Rhodamine B Base Fluorescent Dye.

Yongle WuYuzhen ZhaoXun LiHong GaoZhun GuoDong WangYi LuanLei Wang
Published in: Molecules (Basel, Switzerland) (2024)
Using the polymerization-induced phase separation (PIPS) method, bilayer polymer-dispersed liquid crystal (PDLC) films with a PDLC-PVA-PDLC structure were prepared in this work. It was found that all PDLC performance indexes were affected by polymer mesh size after comparing the microscopic morphology and electro-optical properties of samples with different monomer ratios. Gd 2 O 3 nanoparticles and rhodamine B base fluorescent dyes introduced into the bilayer PDLC optimized the samples' electro-optical properties and developed new functionalities. In addition, the bilayer PDLC doped with Gd 2 O 3 and rhodamine B base held excellent progressive driving functions as well as stable durability properties. Samples doped with Gd 2 O 3 nanoparticles and rhodamine B base also produced excellent anti-counterfeiting effects under UV irradiation at different angles, further exploiting the application potential of PDLC.
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