http://www.cnr.it/ontology/cnr/individuo/prodotto/ID175296
Light-induced molecular adsorption and reorientation at polyvinylcinnamate-fluorinated/liquid-crystal interface (Articolo in rivista)
- Type
- Label
- Light-induced molecular adsorption and reorientation at polyvinylcinnamate-fluorinated/liquid-crystal interface (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevE.71.011702 (literal)
- Alternative label
O. Francescangeli; L. Lucchetti; F. Simoni; V. Stanic; A. Mazzulla (2005)
Light-induced molecular adsorption and reorientation at polyvinylcinnamate-fluorinated/liquid-crystal interface
in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- O. Francescangeli; L. Lucchetti; F. Simoni; V. Stanic; A. Mazzulla (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Scopu (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Univ Politecn Marche, Dipartimento Fis & Ingn Mat & Terr, I-60131 Ancona, Italy
Univ Politecn Marche, Ist Nazl Fis Mat, I-60131 Ancona, Italy
Univ Calabria, Dipartimento Fis, Ist Nazl Fis Mat, Licryl Liquid Crystals Lab, I-87036 Arcavacata Di Rende, CS, Italy (literal)
- Titolo
- Light-induced molecular adsorption and reorientation at polyvinylcinnamate-fluorinated/liquid-crystal interface (literal)
- Abstract
- We have carried out a detailed experimental study, by means of x-ray reflectometry (XRR) and half-leaky guided mode (HLGM) optical characterization, of the light-induced molecular adsorption and reorientation at the polyvinylcinnamate-fluorinated (PVCN-F)/Iiquid-crystal (LC) interface of a LC cell doped with the azodye methyl red (MR). The XRR data allowed characterizing the microscopic structure of the adsorbed dye layer both before irradiation (dark adsorption) and after irradiation (light-induced adsorption). The HLGM optical characterization has made possible the experimental determination of the nernatic director profile in the LC cell and evaluation of the effects of light-induced adsorption on the LC anchoring conditions. The experimental findings have confirmed the formation of a dark-adsorbed layer and are in agreement with the absorption model previously proposed to account for the complex phenomenology related to light-induced anchoring and reorientation in dye-doped liquid crystals. (literal)
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