Lanthanopolyoxotungstoborates: synthesis, characterization, and layer-by-layer assembly of europium photoluminescent nanostructured films

New lanthanopolyoxotungstoborates, K6 xHx[Ln(BW11O39)(H2O)3] nH2O, Ln(III) Sm, Eu, Tb, Er, were prepared and characterized by spectroscopic methods (Fourier transform infrared, Fourier transform-Raman, 11B solid-state nuclear magnetic resonance, and photoluminescence) and elemental analysis. A layer...

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Detalhes bibliográficos
Autor principal: Sousa, FL (author)
Outros Autores: Ferreira, ACAS (author), Ferreira, RAS (author), Cavaleiro, AMV (author), Carlos, LD (author), Nogueira, HIS (author), Rocha, J (author), Trindade, T (author)
Formato: article
Idioma:eng
Publicado em: 2004
Assuntos:
Lanthanopolyoxotungstoborates
Nanostructures
Thin Films
Photoluminescence
Texto completo:http://hdl.handle.net/10773/6032
País:Portugal
Oai:oai:ria.ua.pt:10773/6032
Descrição
Resumo:New lanthanopolyoxotungstoborates, K6 xHx[Ln(BW11O39)(H2O)3] nH2O, Ln(III) Sm, Eu, Tb, Er, were prepared and characterized by spectroscopic methods (Fourier transform infrared, Fourier transform-Raman, 11B solid-state nuclear magnetic resonance, and photoluminescence) and elemental analysis. A layer-by-layer assembly method was employed to fabricate multilayered films containing the europium heteropolyanion and the polyelectrolytes poly(sodium 4-styrenesulfonate) and poly(diallydimethylammonium chloride). The photoluminescence behavior of these final nanostructures was inv

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