Comportamiento eléctrico de vidrios funcionales con base en TeO<SUB>2</SUB>

In this paper we study the structural and electrical behavior of glass-ceramic material of general formula: xMgO (1-x) (0.5V2O 5.0.5MoO3)2TeO2 (0≤x≤0.9) through measurements of density, molar volume, oxygen packing density (OPD), differential scanning calorimetry (DSC) and Raman spectroscopy: electr...

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Detalles Bibliográficos
Autores principales: Terny, Cintia Soledad, De la Rubia, Miguel Ángel, Barolin, S., Alonso, Roberto Emilio, De Frutos, J., Frechero, M. A.
Formato: Articulo
Lenguaje:Español
Publicado: 2014
Materias:
Física
Impedance spectroscopy
Ionic conductivity
Semiconductors
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85412
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:In this paper we study the structural and electrical behavior of glass-ceramic material of general formula: xMgO (1-x) (0.5V2O 5.0.5MoO3)2TeO2 (0≤x≤0.9) through measurements of density, molar volume, oxygen packing density (OPD), differential scanning calorimetry (DSC) and Raman spectroscopy: electric behavior was studied by impedance spectroscopy. We found that magnesium cation induces the growth of slightly crystallized areas inside the material. Those nanocrystallizations were detected to a greater extent by atomic force microscopy (AFM) and in lesser extent by X-ray diffraction (XRD). Regarding the electrical measurements, it can be established that magnesium cation does not act as good ionic conductor in this material.

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