X-ray scattering of nematic liquid crystal nanodispersion with negative dielectric anisotropy [Invited].
X-ray scattering of nematic liquid crystal nanodispersion with negative dielectric anisotropy [Invited].
复制标题
具有负介电各向异性的向列液晶纳米分散体的X射线散射[邀请]。
作者：
A. Lorenz;N. Zimmermann;Satyendra Kumar;D. Evans;G. Cook;M. Fernández Martínez;H. Kitzerow
向列液晶 (LC) 混合物中掺杂了铁电 BaTiO3 纳米粒子，并在从向列相加热到各向同性相时使用广角和小角 X 射线散射进行研究。在中等温度下，观察到胶体微晶。将具有垂直锚定的 LC 测试单元放置在 X 射线束中，并在施加电场时研究 LC 指向矢的重新对准。
A nematic liquid crystal (LC) mixture was doped with harvested ferroelectric BaTiO3 nanoparticles and investigated with wide- and small-angle x-ray scattering upon heating from the nematic to the isotropic phase. At moderate temperatures, colloidal crystallites were observed. LC test cells with homeotropic anchoring were placed in the x-ray beam and the realignment of the LC director was investigated upon applying an electric field.