Synthesis of thermoluminescence α-Ca2P2O7:Eu3+ bio-nanomaterial

Abstract The polycrystalline sample of bio-nanomaterial α-Ca 2 P 2 O 7 :Eu 3+ was prepared by employing modified solution combustion synthesis method. The prepared sample was confirmed by X-ray diffraction (XRD) technique and Photoluminescence (PL) spectra. The Scanning Electron Microscope (SEM) shows the nanostructure of this phosphor. By exposing with gamma-rays its thermoluminescence (TL) properties were recorded. Thermoluminescence glow curves of α-Ca 2 P 2 O 7 :Eu 3 + phosphor shows three distinct glow peaks at 160 °C while higher temperature peaks at 275 °C and 322 °C, respectively, for the heating rate of 5 °C/s. The kinetic parameters including activation energy ( E ) and frequency factor ( s ) were calculated using peak shape method for both the peaks of given phosphor. The phosphor was found to be comparable (116%) sensitive to that of commercially available LiF: Mg, Cu, P (TLD-100H) phosphor. The effect of dose variation on α-Ca 2 P 2 O 7 :Eu 3+ was found to be linear up to 25 Gy dose.