Abstract
SrS:Ce phosphor was prepared by a solid-state diffusion method. Powder X-ray diffraction, transmission electron microscopy, and thermogravimetric analysis were used to characterize the as-prepared product, and the optical properties were studied by photoluminescence spectra. In addition, thermoluminescence and electron spin resonance studies have been carried out on SrS:Ce phosphor. The TL glow curve is broad and indicates two dominant peaks at 137 and 275°C, with an additional peak, not clearly resolved, appearing as shoulder at ∼362°C. Two defect centers are observed at room temperature. One of them is characterized by an isotropic g-value of 2.0039 and is assigned to an F+ center. Step annealing measurements indicate a possible association between the F+ center and the 137°C TL peak.
Sign-in/Register to access full text options 
Free) 
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
