Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Electrical response of liquid crystal cells doped with multi-walled carbon nanotubes
Año:2015
Áreas de investigación
  • Nanotecnología,
  • Espectroscopia,
  • Química del carbono
Datos
Descripción
The inclusion of nanoparticles modifies a number of fundamental properties of many materials. Doping of nanoparticles in selforganized 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.
Internacional
Si
JCR del ISI
Si
Título de la revista
Beilstein J Nanotech
ISSN
2190-4286
Factor de impacto JCR
2,67
Información de impacto
Datos JCR del año 2014
Volumen
6
DOI
Número de revista
Desde la página
396
Hasta la página
403
Mes
FEBRERO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Amanda García García (UPM)
  • Autor: Ricardo Vergaz Benito (Universidad Carlos III de Madrid)
  • Autor: José Francisco Algorri Genaro (Universidad Carlos III de Madrid)
  • Autor: Patxi Xabier Quintana Arregui (UPM)
  • Autor: Jose Manuel Oton Sanchez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Tecnología Fotónica y Bioingeniería
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