Sousa Filipa L, Ferreira Anabela C, Ferreira Rute Sá A, Cavaleiro Ana M, Carlos Luís D, Nogueira Helena I, Rocha João, Trindade Tito
Department of Chemistry, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal.
J Nanosci Nanotechnol. 2004 Jan-Feb;4(1-2):214-20. doi: 10.1166/jnn.2004.073.
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 investigated and compared with that of the starting Eu(III) polyoxometalate used as the building unit.
