Study of Thermoluminescence and optically stimulated luminescence properties of synthesised CaB2O4 nanoparticles doped with copper

Abstract

CaB₂O₄ nanorods doped with different concentrations of Cu were prepared by using co-precipitation method. The recorded Thermoluminescence (TL) and Optically stimulated luminescence (OSL) of CaB₂O₄:Cu samples for different concentrations of Cu irradiated with 6 Gy of X-Ray shows that 0.05 at.wt% of Cu concentrations have higher sensitivity. The TL and OSL kinetic parameters of glow curves were evaluated using “tgcd” and conventional fitting methods. The TL glow curve of the CaB₂O₄:Cu have three individual glow peaks with maximum peak temperatures at 404.50, 453.04 and 484.02 K respectively. The OSL glow curves of the CaB₂O₄:Cu nanoparticles follow non-first order kinetics which can be fitted with the sum of two first order decay curves.