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

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abstract

New lanthanopolyoxotungstoborates, K6-xHx[Ln(BW11O39)(H2O)(3)](.)nH(2)O, Ln(III) = Sm, Eu, Tb, Er, were prepared and characterized by spectroscopic methods (Fourier transform infrared, Fourier transform-Raman, B-11 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(diallyclimethylammonium chloride). The photoluminescence behavior of these final nanostructures was investigated and compared with that of the starting Eu(Ill) polyoxometalate used as the building unit.

keywords

LANGMUIR-BLODGETT-FILMS; SOLID-STATE; RARE-EARTH; POLY(ALLYLAMINE HYDROCHLORIDE); MULTILAYER FILMS; POLYOXOMETALATE; LUMINESCENCE; ELECTROCHEMISTRY; NANOPARTICLES; SURFACES

subject category

Chemistry; Science & Technology - Other Topics; Materials Science; Physics

authors

Sousa, FL; Ferreira, ACAS; Ferreira, RAS; Cavaleiro, AMV; Carlos, LD; Nogueira, HIS; Rocha, J; Trindade, T

our authors

foto Ana Maria Vieira Silva Viana Cavaleiro

Ana Maria Vieira Silva Viana Cavaleiro

Full professor
foto Filipa Lourosa Sousa

Filipa Lourosa Sousa

Junior Researcher
foto Helena Isabel Seguro Nogueira

Helena Isabel Seguro Nogueira

Assistant Professor with Aggregation
foto João Rocha

João Rocha

Full Professor
foto Luís Carlos

Luís Carlos

Full professor
foto Maria Rute de Amorim e Sá Ferreira André

Maria Rute de Amorim e Sá Ferreira André

Full professor
foto Tito Trindade

Tito Trindade

Full professor

Groups

G1 - Porous Materials and Nanosystems
G2 - Photonic, Electronic and Magnetic Materials

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Publication Details

type
Journal Article
year
2004
journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
volume
4
publisher
AMER SCIENTIFIC PUBLISHERS
issn
1533-4880
issue
1-2
digital object identifier
10.1166/jnn.2004.073
web of science article identifier
WOS:000220646100033

Journal Metrics (JCR 2019)

Journal Impact Factor
1.134
Journal Impact Factor (5 yrs)
0.999
category normalized journal percentile
17.801

Citations

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