Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage (Articolo in rivista) (literal)

Anno

• 2004-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1103/PhysRevE.69.051708 (literal)

Alternative label

• M. Scalerandi; P. Pagliusi; G. Cipparrone; G. Barbero (2004)
  Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage
  in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• M. Scalerandi; P. Pagliusi; G. Cipparrone; G. Barbero (literal)

Pagina inizio

• 051708 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 69 (literal)

Rivista

• Physical review. E, Statistical, nonlinear, and soft matter physics (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Dipartimento di Fisica del Politecnico di Torino,Corso Duca degli Abruzzi 24, I-10129 Torino, Italy Dipartimento di Fisica, Universitá della Calabria, Rende (CS) I-87036, Italy IPCF-CNR unità dui Cosenza (literal)

Titolo

• Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage (literal)

Abstract

• The influence of the ions present in a liquid crystal on the dynamical response of a nematic slab submitted to a dc voltage is studied. The evolution of the system toward the equilibrium state is investigated by solving the continuity equation for the electric charge, taking into account the current of drift and of diffusion. Our analysis shows that the formation of the double layers close to the electrodes strongly modifies the distribution of the electric field across the sample. We evaluate the surface polarization due to the ions movements and the contribution to the anisotropic part of the surface energy having a dielectric origin. We show also that, even if the optical response of the liquid crystal is a slow phenomenon, the distribution of the ionic charge is rather fast. Consequently, the presence of the ions cannot be neglected in the determination of the flexoelectric coefficients when the nematic sample is submitted to a square wave having a period of the order of 1 s. (literal)

Prodotto di

• MD.P01.016.001 Soft Matter e nanotecnologie per elettro-ottica e di interesse biomedico e applicazioni tecnologiche correlate (MD.P01.016.002) (Modulo)
• Istituto per i processi chimico-fisici (IPCF) (Istituto)

Autore CNR

• GABRIELLA CIPPARRONE (Unità di personale esterno)
• PASQUALE PAGLIUSI (Persona)

Insieme di parole chiave

• Keywords of "Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per i processi chimico-fisici (IPCF) (Istituto)
• MD.P01.016.001 Soft Matter e nanotecnologie per elettro-ottica e di interesse biomedico e applicazioni tecnologiche correlate (MD.P01.016.002) (Modulo)

Autore CNR di

• GABRIELLA CIPPARRONE (Unità di personale esterno)
• PASQUALE PAGLIUSI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review. E, Statistical, nonlinear, and soft matter physics (Rivista)

Insieme di parole chiave di

• Keywords of "Influence of the ions on the dynamical response of a nematic cell submitted to a dc voltage" (Insieme di parole chiave)