Microstructural and electrical properties of Y 0.07Sr 0.93-xTiO 3-δ perovskite ceramics

Abstract

In order to find a relationship between electrical and microstructural properties, yttrium-doped strontium titanate (7 mol%) with various values of strontium nonstoichiometry was investigated and shown in this work. It has been observed that yttrium doping can affect the electrical properties of SrTiO 3 to a great extent. Moreover, the microstructural and electrical properties can be influenced by strontium nonstoichiometry. The defect chemistry explaining obtained results was also suggested and discussed. © 2012 Versita Warsaw and Springer-Verlag Wien.