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García García, Amanda, Vergaz, Ricardo, Algorri Genaro, José Francisco, Quintana Arregui, Patxi Xabier ORCID: https://orcid.org/0000-0003-4315-2701 and Otón Sánchez, José Manuel
ORCID: https://orcid.org/0000-0001-8070-9180
(2015).
Electrical response of liquid crystal cells doped with multi-walled carbon nanotubes.
"Journal of Nanotechnology", v. 6
;
pp. 396-403.
ISSN 2190-4286.
https://doi.org/10.3762/bjnano.6.39.
Title: | Electrical response of liquid crystal cells doped with multi-walled carbon nanotubes |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Journal of Nanotechnology |
Date: | February 2015 |
ISSN: | 2190-4286 |
Volume: | 6 |
Subjects: | |
Freetext Keywords: | Carbon nanotubes; Cole–Cole diagrams; impedance; liquid crystal; PEDOT:PSS |
Faculty: | E.T.S.I. Telecomunicación (UPM) |
Department: | Tecnología Fotónica y Bioingeniería |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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The inclusion of nanoparticles modifies a number of fundamental properties of many materials. Doping of nanoparticles in self-organized materials such as liquid crystals may be of interest for the reciprocal interaction between the matrix and the nanoparticles. Elongated nanoparticles and nanotubes can be aligned and reoriented by the liquid crystal, inducing noticeable changes in their optical and electrical properties. In this work, cells of liquid crystal doped with high aspect ratio multi-walled carbon nanotubes have been prepared, and their characteristic impedance has been studied at different frequencies and excitation voltages. The results demonstrate alterations in the anisotropic conductivity of the samples with the applied electric field, which can be followed by monitoring the impedance evolution with the excitation voltage. Results are consistent with a possible electric contact between the coated substrates of the LC cell caused by the reorientation of the nanotubes. The reversibility of the doped system upon removal of the electric field is quite low
Item ID: | 41122 |
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DC Identifier: | https://oa.upm.es/41122/ |
OAI Identifier: | oai:oa.upm.es:41122 |
DOI: | 10.3762/bjnano.6.39 |
Official URL: | http://www.beilstein-journals.org/bjnano/single/ar... |
Deposited by: | Memoria Investigacion |
Deposited on: | 03 Jul 2016 09:05 |
Last Modified: | 30 Nov 2022 09:00 |