Review Article
Open Access
Spectral and Electrical Investigations of Zirconium Doped 212– Bi- Sr-Vanadate Ceramics
Khaled M. Elsabawy
Materials Science Unit-Chemistry Department-Faculty of Science-31725-Tanta University- Egypt.
Materials Science Unit,Faculty of Science,Taif University-Taif City-Alhawyah-888-Saudi Arabia
Khaled M. Elsabawy /Int.J. TechnoChem Res. 2015,1(1),pp 50-58
Abstract
Thepresent investigation study the synthesis of formula Bi2SrV2-x ZrxO9, where (x= 0.05,
0.1, 0.2, 0.3, 0.6) which was carefully synthesized and processed by using solid state reaction route
and sintering temperature at 850oC for 10 hrs. XRD – analysis of the prepared samples proved that
zirconium-dopant can substitute successfully until x = 0.6 mole on the Bi-layered perovskite crystal
structure. Zr - dopings have slight effects on both ESR-signals and conduction mechanism of Zr
doped Bi-Sr-VO regime. Electrical measurements indicated that the energy gap Eg and number of
electrons in conduction band Ncb increase as the ratio of Zr doping increases from x = 0.05 till x = 0.6
mole respectively .
Keywords
212-Bi-Vanadates; Zr – Doping ; Perovskite; Ceramic; X- ray; ESR; IR.
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