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BIBTEX RIS

Filmes delgados luminescentes obtidos a partir de hidroxicarbonatos de ítrio ativados por európio ou térbio

2004; Brazilian Chemical Society; Volume: 27; Issue: 2 Linguagem: Inglês

10.1590/s0100-40422004000200002

ISSN

1678-7064

Autores

Emy Niyama, Anselmo Colombo de Alencar, Ligia Delgado da Vila, Elizabeth Berwerth Stucchi, Marian Rosaly Davolos,

Tópico(s)

Chemistry and Stereochemistry Studies

Resumo

LUMINESCENT THIN FILMS OBTAINED FROM YTRIUM HYDROXYCARBONATES ACTIVATED BY TERBIUM OR EUROPIUM.These films were obtained by dip coating.Parameters like dislocation velocity; number of deposits, suspension concentration, and number of deposits followed or not by heat treatment between each deposit and calcination temperature were evaluated for establishing the best homogeneity.The obtained films were characterized in terms of their morphology, optical quality and photoluminescence by scanning electron microscopy (SEM), UV-vis absorption spectrophotometry and luminescence spectroscopy, respectively.The morphologic and luminescent characteristics showed dip coating as good laboratory technique for development of thin films for optical applications.

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