Electrical properties of nematic liquid crystals doped with anatase TiO2 nanoparticles

Chen Yu Tang*, Sheng Miao Huang, Wei Lee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

This study focuses on the electrical characteristics of nematic liquid crystals doped with anatase titania nanoparticles (NPs). Low-frequency dielectric spectroscopy between 10-2 and 103 Hz is used to investigate the space-charge polarization. The results indicate that the doped samples have lower ionic concentration, diffusion constant and activation energy due to the effect of the dopant on ion transport. Temperature-dependent data provide an insight into the feasibility of using these NPs as a dopant to promote the device performance in a real environment. Verified by the voltage holding ratio, it is clear that doping anatase NPs into liquid crystals is a potentially cost-effective and easy way to improve the device performance.

Original languageEnglish
Article number355102
JournalJournal of Physics D: Applied Physics
Volume44
Issue number35
DOIs
StatePublished - 7 Sep 2011

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