Synthesis and characterization of BaLuF5: Tb3+ oxyfluoride glass ceramics as nanocomposite scintillator for X-ray imaging. Issue 15 (15th November 2016)

• Record Type: Journal Article
• Authors: Cao, JiangKun; Chen, WeiPing; Chen, LiPing; Sun, XinYuan; Guo, Hai
• Is Part Of: Ceramics international. Volume 42:Issue 15(2016)
• Page Start: 17834
• Page End: 17838
• Publication Date: 2016-11-15
• Subjects: B. Nanocomposites -- D. Glass -- D. Glass ceramics -- Luminescence; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.08.114
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Tb 3+ -dopedoxy-fluoride glass ceramics (GC) containing BaLuF5 nanocrystals were manufactured successfully by melt-quenching method with further thermal treatment. Their micro-structural and optical properties were investigated systemically by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) techniques, transmittance spectra, photoluminescence (PL), luminescence lifetime measurements and X-ray excited luminescence (XEL). PL and XEL from BaLuF5 :Tb 3+ GC are both highly enhanced after further thermal treatment benefiting from the preferential incorporation of Tb 3+ ions into the crystallized BaLuF5 nanocrystals with low phonon energy. Impressively, the integrated XEL intensity for GC640 is about 26% of the commercial BGO scintillator. Our investigation indicates that such Tb 3+ -doped transparent BaLuF5 GC are potential candidates of X-ray scintillators for slow event detection.