Zinc Silicate Phosphor: Insights of X-Ray Induced and Temperature Enabled Luminescence.

The present investigation deals with the effect of calcination temperature on the structural and thermoluminescent (TL) properties of Zn 2 SiO 4 materials. For this study, Zn 2 SiO 4 was prepared via a simple hydrothermal route and calcinated at temperatures from 700 °C to 1100 °C in an air atmosphere. TL data of all Zn 2 SiO 4 samples showed two peaks around 239 °C and 330 °C due to the formation of the luminescence centre during X-ray irradiation. More interestingly, the Zn 2 SiO 4 sample calcinated at 900 °C exhibited a shift in the TL peak (282 °C and 354 °C) with an optimal TL intensity which is attributed due to its good crystallinity with a well-defined hexagonal plate-like morphology. X-ray irradiated Zn 2 SiO 4 samples calcinated at 900 °C exhibited a high-temperature TL glow curve peak suggesting that the present material could be used for high-temperature dosimetry applications.