Abstract
The influence of the size of harvested barium titanate nanoparticles on the properties of ferroelectric liquid crystal (FLC) nanocolloids was investigated by electro-optical and dielectric methods. The spontaneous polarization and the switching time are decreased for the liquid crystalline nanocolloids compared to nondoped FLC mixtures of different dipole strengths; this dependence is stronger for small size particles (9 nm) and weaker for larger size particles (26 nm) by the same concentration in weight. The decrease of the Goldstone mode (GM) relaxation frequency and the decrease of the dielectric GM absorption strength of the nanocomposites compared to the nondoped FLC mixture go stepwise with the increase of the nanoparticles diameter. Results have been interpreted via strong interaction between the FLC dipoles and the dipoles of the highly polar barium titanate nanoparticles.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Yuriy Garbovskiy and Anatoliy Glushchenko
Appl. Opt. 52(22) E34-E39 (2013)
D. Budaszewski, D. P. Singh, and T. R. Woliński
Opt. Express 31(18) 29942-29953 (2023)
Alexander Lorenz, Natalie Zimmermann, Satyendra Kumar, Dean R. Evans, Gary Cook, Manuel Fernández Martínez, and Heinz-S. Kitzerow
Appl. Opt. 52(22) E1-E5 (2013)