Effect of UV Irradiation on Thermoluminescence Properties of Perovskite Structured Pure and Europium Doped Barium Zirconium Titanate

The BaZrxTi1-xO3: Eu 3+ phosphors have been synthesized the conventional solid state reaction method. Mechanoluminescence (ML) and thermoluminescence (TL) in barium zirconium titanate (BZT) system with Europium as dopant is reported for the first time. The BZT system belongs to perovskite family. The samples are prepared in a high temperature furnace at a temperature of 1200 o C. The powder X ray diffraction (XRD), Scanning electron microscopy (SEM) techniques are used to characterize the samplesthoroughly according to their structure, composition, morphology and optical properties. The XRD patterns confirm the crystalline perovskite type cubic structure. Also, highly agglomerated, porous and regular shaped particles are seen by FESEM. The optical properties of the prepared samples are studied and discussed in terms of TL. The TL glowcurves so obtained for the different samples for different irradiation time are analysed by the well-known Peak Shape method. Keywords— Perovskite, Thermoluminescence, BZT, solid state reaction, optical properties, XRD, FESEM