Dielectrophoretic manipulation of the mixture of isotropic and nematic liquid

作者: Soo-Dong Kim , Bomi Lee , Shin-Woong Kang , Jang-Kun Song

DOI: 10.1038/NCOMMS8936

关键词: PolyimideOpticsPhase (matter)MonolayerPolymerFabricationMaterials scienceIsotropyMicroscale chemistryLiquid crystalChemical physics

摘要: In various applications involving liquid crystals, the manipulation of nanoscale molecular assembly and microscale director alignment is highly useful. Here we show that a nematic-isotropic mixture, unique bi-liquid system, has potential for fabrication microstructures having an ordered phase within disordered phase, or vice versa. The volume expansion shrinkage, migration, splitting, mergence elongation one other are easily accomplished via thermal treatment dielectrophoretic manipulation. This particularly achievable when suspended in middle. case, biased ordered-phase preference surfaces, is, nematic-philic nature polyimide layer nematic-phobic self-assembled monolayer chlorosilane derivatives, used. Further, by combining this approach with photopolymerization, patterned microstructure solidified as polymer film both isotropic anisotropic arrangements simultaneously, template morphological variation.

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