Langmuir and Langmuir-Blodgett films of Cl-PPV mixed with stearic acid: implication of the morphology on the surface and spectroscopy properties

Langmuir and Langmuir-Blodgett films of Cl-PPV mixed with stearic acid: implication of the morphology on the surface and spectroscopy properties

Autor Sakai, Andrei Autor UNIFESP Google Scholar
Peres, Laura O. Autor UNIFESP Google Scholar
Caseli, Luciano Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo The molecular architecture of polymeric films can be changed in order to obtain enhanced properties for the fabrication of optoelectronic devices. in this paper, poly(2-chloro-p-phenylenevinylene) was spread on the air-water interface and mixed with stearic acid in order to form stable Langmuir monolayers. These films were transferred from the air-water interface to solid supports as Langmuir-Blodgett (LB) films. the influence of Cl in the polymer chain was investigated with measurements of surface pressure, polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS), Brewster angle microscopy (BAM), atomic force microscopy (AFM), and fluorescence spectroscopy. the immobilization of this polymer on solid supports as LB films provided a high control of its morphological and luminescence properties, which may be useful tomanipulate structures at the molecular level to be applied as optoelectronic devices.
Assunto PPV
Stearic acid
Monolayer
Air-water interface
Langmuir-Blodgett films
Idioma Inglês
Financiador Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
nBioNet: Films and Sensors
INEO (National Institute of Science and Technology for Organic Electronics)
Número do financiamento FAPESP: 2013/10213-1
Data 2015-03-01
Publicado em Colloid and Polymer Science. New York: Springer, v. 293, n. 3, p. 883-890, 2015.
ISSN 0303-402X (Sherpa/Romeo, fator de impacto)
Editor Springer
Extensão 883-890
Fonte http://dx.doi.org/10.1007/s00396-014-3477-4
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000350367200021
URI http://repositorio.unifesp.br/handle/11600/38811

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