Estudo das blendas poliméricas PC/PMMA co-dopadas com complexos orgânicos de íons de Eu+³ e Tb+³ via fotoacústica e luminescência

• Ano de defesa: 2014
• Autor(a) principal: Hegeto, Fábio Luis
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual de Maringá; Brasil; UEM; Maringá, PR; Programa de Pós-Graduação em Física
• Palavras-chave em Português: Blendas poliméricas PC/PMMA luminescentes; Espectroscopia fotoacústica; Espectroscopia fotoluminescente; Policarbonato; Poli (metacrilato de metila); Brasil.; Ciências Exatas e da Terra; Física
• Link de acesso: http://repositorio.uem.br:8080/jspui/handle/1/2687

As development in the techniques of separation of rare earth and the large-scale production the World in consumption of rare earths grew rapidly because its technological applications, mainly in new materials emitting electromagnetic radiation in the UV / VIS region, based on lanthanide electronic transitions. In this work, polymer blends PC / PMMA luminescent co doped are presented in different Weight percentages of organic complexes of acetylacetonate lanthanide III, using a fixed percentage for the ternary Europium and Terbium ions. The polymer films pure and doped exhibits good transparency to electromagnetic radiation in the visible spectrum, for the characterization of absorption and emission, We use the technique of photoacoustic spectroscopy for absorption and photoluminescence spectroscopy for analyzing emission, for this last used was a commercial spectrofluorometer the company Perkin Elmer and a setup mounted in our lab.