Electrooptic proprieties of layer-by-layer films of a azobenzene containing copolymer

Paulo A. Ribeiro, Paulo J. Gomes, Quirina Ferreira, Maria Raposo, David Sotero Dos Santos, Débora T. Balogh, Osvaldo Novais de Oliveira Junior, José Alberto Giacometti

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The methacrylic copolymer functionalized with the azo chromophore 4-[N-ethyl-N-(2-hydroxiethyl)]-amino-2′-chloro-4-nitroazobenzene (MMADR13), in its polyelectrolyte form, can be used to fabricate thin films by the layer-by-layer (LbL) technique just if one alternates this anionic polyelectrolyte with a cationic polyelectrolyte such as poly(allylamine hydrochloride) (PAH). Since PAH does not present any particular optical functionality, the main final film feature will came from the side chain DR13 azo-chromophore group due to its large nonlinear optical properties and photoisomerization capabilities. This work reports the electrooptic activity of MMADR13/DR13 LBL films, which arises from the high hiperpolarizability about the azo side chain group.

Original languageEnglish
Title of host publication2005 12th International Symposium on Electrets, ISE 12 - Proceedings
EditorsRoberto M. Faria, José A. Giacometti, Osvaldo N. Oliveira Jr
Place of PublicationPiscataway
PublisherIEEE
Pages528-531
Number of pages4
ISBN (Print)0780391160, 9780780391161
Publication statusPublished - 2005
Event2005 12th International Symposium on Electrets, ISE 12 - Salvador, Bahia, Brazil
Duration: 11 Sep 200514 Sep 2005

Publication series

NameProceedings - International Symposium on Electrets
Volume2005
ISSN (Print)2153-3253
ISSN (Electronic)2153-327X

Conference

Conference2005 12th International Symposium on Electrets, ISE 12
CountryBrazil
CitySalvador, Bahia
Period11/09/0514/09/05

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