Abstract
Single crystal of strontium iodide doped with 1% europium (SrI2:1% Eu2+) was grown by Vertical Gradient Freeze technique. UV excited emission spectra were studied as a function of temperature. Results indicate the thermal quenching of Eu2+ emission starts from ∼400K with a thermal activation energy of 0.39eV. Gamma and UV excited decay measurements indicate that the scintillation decay time of SrI2:Eu2+ is longer than the lifetime of Eu2+ luminescence center in the SrI2 host. The thermoluminescence glow curve revealed a highly concentrated charge carrier trap at 50K. Elimination of this trap is expected to enhance the energy migration of charge carriers and result in faster scintillation decay.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
