Refractive index of polymethylmethacrylate oriented by fluid temperature under electrical field

Oleksij Lyutakov, Vaclav Švorčík, Ivan Huttel, Jakub Siegel, Nikola Kasálková, P. Slepička

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We prepared micron and submicron polymethylmethacrylate (PMMA) layers by the spin-coating method. We investigated the possibility to orientate polymer dipoles in electric field in the glass transition area (T g) and the fluid temperature of PMMA with the aim to increase its refractive index (n) after the layer is cooled below T g. We have studied the effect of electric field (up to 12 kV cm -1) on change of surface morphology of the layer, dependence of n and contact angle (surface wettability) on the field and dependence of layers orientation on orientation of electric field. The surface morphology was examined using atomic force microscopy (AFM), contact angles were measured by goniometer, film thickness was measured by profilometer, refractive index of films was determined using refractometer. The change of refractive index as dependent on the PMMA layer orientation in electric field depends on temperature and electric field. The highest change in n was found for electric field 11 kV cm -1. The change in contact angle (wettability) on surface of an orientated PMMA layer confirms the dipoles orientation in electric field unambiguously. The orientation of layers causes a "slight" change in their morphology and a "slight" increase of surface roughness only for one direction of field effect. Change in colour for oriented layers does not depend on orientation of electric field.

Original languageEnglish
Pages (from-to)1064-1068
Number of pages5
JournalJournal of Materials Science: Materials in Electronics
Volume19
Issue number11
DOIs
Publication statusPublished - 1 Jan 2008
Externally publishedYes

Fingerprint

Polymethyl Methacrylate
Refractive index
Electric fields
refractivity
Fluids
electric fields
fluids
Contact angle
Temperature
temperature
wettability
Surface morphology
Wetting
Refractometers
dipoles
Goniometers
refractometers
goniometers
profilometers
Spin coating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Refractive index of polymethylmethacrylate oriented by fluid temperature under electrical field. / Lyutakov, Oleksij; Švorčík, Vaclav; Huttel, Ivan; Siegel, Jakub; Kasálková, Nikola; Slepička, P.

In: Journal of Materials Science: Materials in Electronics, Vol. 19, No. 11, 01.01.2008, p. 1064-1068.

Research output: Contribution to journalArticle

Lyutakov, Oleksij ; Švorčík, Vaclav ; Huttel, Ivan ; Siegel, Jakub ; Kasálková, Nikola ; Slepička, P. / Refractive index of polymethylmethacrylate oriented by fluid temperature under electrical field. In: Journal of Materials Science: Materials in Electronics. 2008 ; Vol. 19, No. 11. pp. 1064-1068.
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