Evropyum katkili CaMoO4'ün sentezlenmesi ve termolüminesans özellikleri

Rare-earth ion doped calcium molybdate (CaMoO4) has attracted much interest due to its wide luminescence applications. These include optical filters, solid state lasers, LED (light emitting diodes), scintillators, microwave dielectrics, cryogenic detectors and fluorescent lamps. Moreover, some of its attractive features include a high melting point (1445–1480 oC), refractive index (1.98), effective average decay time (14 µs), photo electron yield (9%) and it is also chemically resistant and non-hygroscopic. CaMoO4 shows a broad blue and/or green luminescence emission peak in the range 350–650 nm with a peak maximum around 500 nm. In the given study Eu doped Calcium Molybdate phosphors have been sythesized using the complex polymerization method (cpm) and the thermoluminescence properties were investigated in detail. Computerized glow deconvolution (CGCD) method was used to determine the kinetic parameters namely the order of kinetics (b), activation energy (Ea) and the frequency factor (s) associated with the dosimetric thermoluminescent (TL) glow peaks of CaMoO4: Eu after different dose levels with β irradiation.