Effect of flux on thermoluminescence studies of Sr2SiO4:Eu0.01 nanophosphor

Eu3+ doped (0.01 mol %) nanocrystalline Sr2SiO4 phosphor was prepared by solution combustion method using citric acid as fuel and NaF as flux. The crystallization and particle size of Sr2SiO4 have been investigated by using Powder X-ray diffarction. Thermoluminescence of Sr2SiO4: Eu0.01 nanophosphor exposed to γ-irradiation in the dose range 10-100 Gy has been investigated. Two glow peaks recorded at 156°C and 220°C respectively. The kinetic order, activation energy and frequency factor were estimated by Chen's peak shape method.