Peculiarities of electric field alignment of nonlinear optical chromophores incorporated into thin film polymer matrix

M. Makowska-Janusik, H. Reis, M. G. Papadopoulos, Ioannis Economou

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The electric field poling process of free-standing films of poly(methyl methacrylate) (PMMA) matrix doped with the nonlinear optical compound 4-(dimethylamino)-4'-nitrostilbene (DMANS) was investigated by molecular simulation methods. The influence of the vacuum/bulk interfacial regions on static and dynamic properties, including the glass transition temperature T g and the field-induced chromophore reorientation, was studied by employing films of three different thicknesses and by comparison with previous work on the bulk system. The interfacial region, defined as the region, where the local density increases from zero to the bulk density, is about 2 nm wide, independent of the film thickness. T g decreases with decreasing film thickness, in accord with previous experimental work and theoretical predictions. The resistance against field-induced chromophore reorientation in the liquid state is found to increase strongly with the film thickness.

Original languageEnglish
Pages (from-to)153-158
Number of pages6
JournalTheoretical Chemistry Accounts
Volume114
Issue number1-3
DOIs
Publication statusPublished - Sep 2005
Externally publishedYes

Fingerprint

Chromophores
Polymer matrix
chromophores
Film thickness
film thickness
alignment
Electric fields
Thin films
retraining
electric fields
polymers
matrices
thin films
Polymethyl Methacrylate
polymethyl methacrylate
dynamic characteristics
glass transition temperature
Vacuum
vacuum
Liquids

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Peculiarities of electric field alignment of nonlinear optical chromophores incorporated into thin film polymer matrix. / Makowska-Janusik, M.; Reis, H.; Papadopoulos, M. G.; Economou, Ioannis.

In: Theoretical Chemistry Accounts, Vol. 114, No. 1-3, 09.2005, p. 153-158.

Research output: Contribution to journalArticle

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