Molecular Crystals and Liquid Crystals, Vol.612, No.1, 110-116, 2015
Impact of Doping CdSe/ZnS Quantum Dots on the Elasticity Coefficients of Nematic
C-V dependencies of pure NLC cells and suspensions with semiconductor CdSe/ZnS QDs were simulated. Comparison method of fitting theoretical capacity-voltage dependencies with experimental data of homogeneously aligned by polyimide layers LC cells was applied to estimate elasticity coefficients for splay and bend director deformation and parallel and perpendicular components of NLC cell dielectric constant. Increase of these parameters for QDs-NLC suspension compared to pure NLC was observed when the QDs concentrations were 0.5-1 mg/ml. The calculations were performed excluding the screening effect associated with QDs doping which can increases Frederick's threshold voltage.