Synthesis and characterization of SrTeO3using reducted telurium into a rongalite solution

O. Arellano-Tánori, A. G. Rojas-Hernández*, R. Gómez-Fuentes, R. Ochoa-Landin, D. Berman-Mendoza, T. Mendívil-Reynoso3,, M. C. Acosta-Enriquez, L. P. Ramírez-Rodríguez, S. J. Castillo

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva


In this work a new methodology to synthesize strontium tellurite on the base of reduction of tellurium is presented. The Tellurium comes from oxidation stage 0 to -2, afterward it is mixed with a strontium salt, strontium chloride, in aqueous solution. In this process a fast chemical reaction of substitution it is realized. In order to make the optical characterization, the absorption in the UV-visible range was measured leading to compute direct and indirect band gap energies. The obtained strontium tellurite was a black powder after to be rinsed several times with deionized water, the obtained Band gaps values were 2.85 and 1.75 eV for direct and indirect respectively. From the Raman spectrum were identified three related peaks: at 118 cm-1 corresponding to SrO, 697 cm-1corresponding to (TeO3)2-(v3). and 776 cm-1corresponding to (TeO3)2-(v1). The infrared response shows SrO at 526 cm-1, strontium oxide at 617 cm-1 plus O-H vibration and bending vibration H-O-H. Finally from transmission electron microscopy two crystallographic phases were detected, the monoclinic and the triclinic structures.

Idioma originalInglés
Número de artículoA005
Páginas (desde-hasta)589-595
Número de páginas7
PublicaciónChalcogenide Letters
EstadoPublicada - 1 nov. 2015

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© 2015, National Institute R and D of Materials Physics, All rights reserved.


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