Synthesis, thermal and photoluminescent properties of ZnSe- based oxyfluoride glasses doped with samarium

18th International School on Condensed Matter Physics: "Challenges of Nanoscale Science: Theory, Materials, Applications"

Kostova, I.^1,2 ; Okada, G.^2 ; Pashova, T.^1 ; Tonchev, D.^1,2 ; Kasap, S.^2

Department of Chemical Technology, Department of Experimental Physics, Plovdiv University P.Hilendarski, Plovdiv

4000, Bulgaria^1

Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon

S7N5A9, Canada^2

关键词: Excitation sources;    Melt quenching techniques;    Modulated differential scanning calorimetry;    Oxy-fluoride glass;    Photo-luminescent properties;    Photoluminescence measurements;    Rare earth doped;    X-ray intensifying screens;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/558/1/012030/pdf
DOI  :  10.1088/1742-6596/558/1/012030

来源: IOP

【 摘 要 】

Rare earth (RE) doped glasses and glass ceramic materials have recently received considerable attention because of their potential or realized applications as X-ray intensifying screens, phosphors, detectors, waveguides, lasers etc. [1]. In this work, we present a new RE doped ZnO-ZnSe-SrF2-P2O5-b2O3-Sm2O3-SmF3(ZSPB) glass system synthesized by melt quenching technique. The resulting glasses were visually fully transparent and stable with glass the transition temperatures around 530°C. The thermal properties of this glass system were characterized by Modulated Differential Scanning Calorimetry (MDSC) measurements before and after annealing at 650°C. We have characterized these glasses by Raman spectroscopy and photoluminescence (PL) measurements over the UV-VIS range using light emitting diodes (LED) and laser diodes (LD) excitation sources. We have also irradiated thermally treated and non-treated glass samples by X-rays and have studied the resulting PL. We discuss the results in terms of previously reported models for Sm-doped Zn-borophosphate oxide, oxyfluoride and oxyselenide glasses.