DIELECTRIC PROPERTIES NEMATIC LIQUID CRYSTAL WITH A LOW CONTENT OF Au NANOPARTICLES
DOI:
https://doi.org/10.18372/2310-5461.9.5034Keywords:
nematic liquid crystal, nanochastychky gold, ostsyloskopichny method, AC conductivity, imaginary and real components of dielectric permittivity, pryelektrodnoyi parameters and bulk sample plots, planar orienta-tion of moleculesAbstract
Using the method oscilloscope we have studied the influence of gold nanoparticles of 3–5 nm in diameter and with the maximum concentration of 0.1 wt. % on dielectric properties of the planar oriented nematic liquid crystal 6CHBT. It was shown that the nanoparticles changed significantly the parameters of near-electrode areas (almost by one order of magnitude) and conductance (about 4 times). These changes non-linearly depended on the concentration of nanoparticles.References
Agasti S . S., Photoregulated release of caged anticancer drugs from gold nanoparticles / S. S. Agasti, A. Chompoosor, C.-C. You, P. Ghosh, C. K. Kim, V. M. Rotello // J. Amer. Chem. Soc. — 2009. — Vol. 131. — No. 16. — P. 5728—5729.
Kang B. Nuclear targeting of gold nanoparticles in cancer cells induces DNA damage, causing cytokinesis arrest and apoptosis / B. Kang, M. A. Mackey and M. A. El-Sayed // J. Amer. Chem. Soc. — 2010. — Vol. 132. — No. 5. — P. 1517—1519.
Park S. Y. Surface-Enhanced Plasmon Splitting in a Liquid-Crystal-Coated Gold Nanoparticle / S. Y. Park, D. Stroud // Phys. Rev. Lett. — 2005. — Vol. 94. — P. 217401.
Pratibha R. Tunable optical metamaterial based on liquid crystal-gold nanosphere composite / R. Pratibha, K. Park, I.I. Smalyukh, W. Park // Opt. Express. — 2009. — Vol. 17. — P. 19459—19469.
Pratibha R. Colloidal gold nanoparticle dispersions in smectic liquid crystals and thin nanoparticle-decorated smectic films / R. Pratibha, K. Park, W. Park, I. I. Smalyukh // J. Appl. Phys. — 2010. — Vol. 107. — P. 63511.
Kumar A. Enhanced photoluminescence in gold nanoparticles doped ferroelectric liquid crystals /A. Kumar, J. Prakash, D.S. Mehta, A.M. Biradar, W. Haase // Appl. Phys. Lett. — 2009. — Vol. 95. — P. 23117.
Hsu L.-H. Irreversible redshift of transmission spectrum of gold nanoparticles doped in liquid crystals / L.-H. Hsu, K.-Y. Lo, S.-A. Huang, C.-Y. Huang, and Ch.-S. Yang // Appl. Phys. Lett. — 2009. — Vol. 95. — P. 23117.
Kopčansky P. Structural phase transition in liquid crystal doped with gold nanoparticles / P. Kopčansky, N. Tomašovičova, M. Koneracka, M. Timko, Z. Mit-rova, V. Zavišova, N. Eber, K. Fodor-Csorba, T. Toth-Katona, A. Vajda, J. Jadzyn, E. Beaugnon and X. Chaud // Acta Phys. Pol. A. — 2010. — Vol. 118. — No.5. — P. 988—989.
Twarowski A. J. Depletion layer in organic films: Low frequency measurements in polycrystalline te-tracene / A. J. Twarowski, A. C. Albrecht // J. Chem. Phys. — 1979. — Vol. 20. — No. 5. — P. 2255—2261.
Koval’chuk A. V. Relaxation processes and charge transport across liquid crystal – electrode inter-face / A. V. Koval’chuk // J. Phys.: Condensed Matter. — 2001. — V. 13, Nо 24. — P. 10333—10345.
Barsukov E. Impedance Spectroscopy. Theory, Experiment and Applications / E. Barsukov, J. R. Macdonald. — New Jersey: John Wiley & Sons Inc., 2005. — 595 p.
Downloads
Published
How to Cite
Issue
Section
License
The scientific journal adheres to the principles of Open Access and provides free, immediate, and permanent access to all published materials without financial, technical, or legal barriers for readers.
All articles are published in Open Access under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.
Copyright
Authors who publish their works in the journal:
-
retain the copyright to their publications;
-
grant the journal the right of first publication of the article;
-
agree to the distribution of their materials under the CC BY 4.0 license;
-
have the right to reuse, archive, and distribute their works (including in institutional and subject repositories), provided that proper reference is made to the original publication in the journal.




