Rev.Adv.Mater.Sci.(RAMS)
No 4, Vol. 10, 2005, pages 367-374

OPTICAL AND ELECTRONIC PROPERTIES OF THE ALUMINOPHOSPHATE GLASSES
DOPED WITH 3D-TRANSITION METAL IONS

M. Elisa, Cristiana E.A. Grigorescu, Cristina Vasiliu, M. Bulinski, V.Kuncser,
Daniela Predoi, G. Filoti, Aurelia Meghea, Nicoleta Iftimie and Maria Giurginca

Abstract

Aluminophosphate glasses doped with Fe, Mn, and Cr have been obtained by a wet non-conventional method. Structural information was provided by IR absorption spectra in the range 2000-500 cm-1. The optical behaviour (transmission and refractive index) of the samples has been studied by UV-VIS-NIR spectroscopy. The Fe valence state and the local coordination were also analysed via 57Fe Mossbauer spectroscopy, whose data revealed the redox equilibrium in the Fe-doped glasses according to the redox potentials of the transition ions.

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