Local order effects on the photoluminescence of Er super(3+) in a novel vitreous matrix of the CdO-ZnO-V sub(2)O sub(5) system and manifolds in Zn sub(x)l sub(2-) sub(x) sub(3) micro crystalline aggregates

The ion Er super(3+) was introduced into a new kind of glassy matrices prepared from a mixture of CdO-ZnO-V sub(2)O sub(5) and Er(NO sub(3)) sub(3) super(.5H) sub(2) as source of Er super(3+) ions. The obtained glasses were characterized by infrared spectroscopy and micro photoluminescence and micro...

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Bibliographic Details
Published in:Optical materials 2010-07, Vol.32 (9), p.1090-1094
Main Authors: Lopez-Calzada, G, Pancardo-Rodriguez, I, Carmona-Rodriguez, J, Zayas, MaE, Rodriguez-Melgarejo, F, Martinez-Juarez, J, Juarez-Diaz, G, Zelaya-Angel, O, Portillo-Moreno, O, Jimenez-Sandoval, S J, Lozada-Morales, R
Format: Article
Language:English
Subjects:
Aggregates
Aluminum
Crucibles
Crystal structure
Electric fields
Glass
Matrices
Photoluminescence
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Summary:The ion Er super(3+) was introduced into a new kind of glassy matrices prepared from a mixture of CdO-ZnO-V sub(2)O sub(5) and Er(NO sub(3)) sub(3) super(.5H) sub(2) as source of Er super(3+) ions. The obtained glasses were characterized by infrared spectroscopy and micro photoluminescence and micro Raman spectroscopies. The glass formation process produced Al diffusion from the crucible to the oxides mixture yielding crystalline micro aggregates. The room temperature photoluminescence spectra showed transitions from different Er super(3+) levels in the 450-900 nm range. In particular, the super(4)F sub(9/2) --> super(4)I sub(15/2) transitions were strongly affected by local electric fields since these transitions presented Stark effect splittings whose intensity was dependent on the atomic order surrounding the Er super(3+) ions. It was found that a highly reproducible multiplet emission was particularly strong in crystalline micro-regions of Zn sub(x)l sub(2-) sub(x) sub(3) immersed in the vitreous matrix.
ISSN:0925-3467
DOI:10.1016/j.optmat.2010.02.036