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Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Spectroscopic Study of a Europium Luminescent Complex Adsorbed on Si-Ti Inorganic–Organic Hybrid

2001; Elsevier BV; Volume: 243; Issue: 2 Linguagem: Inglês

10.1006/jcis.2001.7819

ISSN

1095-7103

Autores

Robson Fernandes de Farias, Severino Alves, Mônica F. Belian, Gilberto F. de Sá,

Tópico(s)

Luminescence Properties of Advanced Materials

Resumo

Through the sol–gel process, a silicon–titanium inorganic–organic hybrid is synthesized and used as substrate to study the adsorption and spectroscopy of a europium luminescent complex: Eu(fod)3. The complex and silicon–titanium hybrid were mixed in stoichiometric amounts to produce samples with 1%, 5%, and 10% (m/m) of adsorbed complex, with the matrices being pressed at 380 mPa for 0.5, 30, and 60 min before spectroscopic analysis. It is verified that the intensity of the 5D0→7F2 emission band is dependent on the complex/nitrogen ratio and almost independent of the external pressure.

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