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It is well known that the physical and electro-optical properties of liquid crystals can be controlled by doping with nanoparticles. In this study, we investigated the electro-optical properties of homogeneous aligned liquid crystal devices doped with various titanate nanoparticles, such as TiSiO₄, BaTiO₃, SrTiO₃ and mixtures of BaTiO₃ and SrTiO₃. Doping liquid crystals with titanate nanoparticles decreased the threshold voltages of the liquid crystal mixture cells. In particular, the liquid crystal cells doped with SrTiO₃ nanoparticles exhibited the lowest switching amplitude of 0.643 V. The high performance of the liquid crystal cells doped with various titanate nanoparticles indicates that the proposed liquid crystal devices have strong potential for use in materials for advanced liquid crystal displays.

In this study, we doped homogenous aligned nematic liquid crystal (NLC) systems with strontium titanate (SrTiO3) nanoparticles (NPs), and investigated the impact of doping concentration on ...

We demonstrated the doping effects of titanium silicon oxide (TiSiO4) nanoparticles (NPs) on the characteristics of liquid crystal (LC) system. Simply by adding TiSiO4 to the LC medium, the electro-optical (EO) characteristics of LC cells can be improved. The EO characteristics were improved by increasing the doping concentration. However, it was confirmed that if the doping concentration was too high, the EO characteristics would be deteriorated due to interference with the LC behavior. In addition, TiSiO4 NPs dispersed in the LC mixture captured impurity ions and exhibited hysteresis-free voltage-transmittance (V–T) characteristics. The TiSiO4 NPs doped LC cells also showed higher thermal stability than a pristine LC cell. These results suggest that TiSiO4 NPs doped into an LC system could benefit not only the display industry but also other industrial fields requiring high-performance EO characteristics.