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Updated: Feb 15, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
Impact of titanium dioxide nanoparticles on purification and contamination of nematic liquid crystals
Dmitrii Pavlovich Shcherbinin1, Elena A Konshina1
1Department of Optical Physics and Modern Natural Science, ITMO University, Kronverkskiy pr. 49, Saint Petersburg 197101, Russia.
Abstract:
We have investigated the impact of titanium dioxide nanoparticles on the ionic contamination of liquid crystals. Nematic liquid crystals with high and low initial ionic contamination have been examined. It has been shown that titanium dioxide nanoparticles reduced the ion density of liquid crystals with high initial ionic contamination from 134.5 × 1012 cm-3 to 63.2 × 1012 cm-3. In the case of liquid crystals with low initial ionic contamination, the nanoparticles led to an insignificant increase of ion density from 19.8 × 1012 cm-3 to 25.7 × 1012 cm-3.
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