Determination of optical and structural properties of lithium silicate ceramics with different ratios of Sm doped

Abstract

In this study, the synthesis and luminescence characterization of Samarium (Sm 3+ ) doped lithium metasilicate (Li 2 SiO 3 ) phosphor ceramic were investigated. TSL, RL, and PL spectrums were discussed. It was concluded that the materials showed typical luminescence and optical properties. RL measurements of Sm 3+ doped (0.156%mol) and undoped Li 2 SiO 3. • Lithium silicate materials with doped/undoped were synthesized using solid state reaction method. • Investigation of XRD and SEM analysis were performed. • RL, PL and TSL spectrums are investigated. • Some optical and physical properties were discussed. In this study, the synthesis and luminescence characterization of Samarium (Sm 3+ ) doped lithium metasilicate (Li 2 SiO 3 ) phosphor ceramic were investigated. It was presented and discussed the results obtained on the luminescence and other optical studies such as X-ray diffraction (XRD), optical absorption and luminescence properties of Li 2 SiO 3 :Sm 3+ phosphor ceramic. The Li 2 SiO 3 compound was shown a characteristic phase in XRD. The doping in the lithium compound was not having a significant effect on the basic crystal structure of the material. The maximum photoluminescence (PL) emission for Sm 3+ doped Li 2 SiO 3 was observed at 554, 583, 641, 725 nm and bore resemblance to the visible region of the spectrum. The glow curves of all synthesized materials have a complex peak structure after being irradiated with a 90 Sr– 90 Y beta source. In addition, the peak between 400 and 600 nm was seen in the radioluminescence (RL) spectrum because of a wide peak thought to be caused by silicate.