Enhanced emissions in Tb3+-doped oxyfluoride scintillating glass ceramics containing KLu2F7 nano-crystals
| Autor: | YunLe Wei, XiuYao Wang, LiPing Chen, Jiangkun Cao, Hai Guo, Xiaoman Li |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Photoluminescence Doping Biophysics Analytical chemistry 02 engineering and technology General Chemistry Crystal structure Scintillator 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry Atomic and Molecular Physics and Optics 0104 chemical sciences visual_art Excited state visual_art.visual_art_medium Ceramic 0210 nano-technology Luminescence High-resolution transmission electron microscopy |
| Zdroj: | Journal of Luminescence. 170:207-211 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2015.10.049 |
| Popis: | KLu 2 F 7 : Tb 3+ oxyfluoride glass ceramics (GC) were successfully manufactured via traditional melt-quenching route with further heat-treatment. Their micro-structural and optical properties were systemically investigated by XRD, TEM, HRTEM techniques, transmittance spectra, excitation spectra, emission spectra, luminescence lifetime measurements and X-ray excited luminescence (XEL). Both photoluminescence and XEL of KLu 2 F 7 GC doped with Tb 3+ are highly enhanced after further heat-treatment resulting from the partition of Tb 3+ ions into the KLu 2 F 7 crystalline lattice with low phonon energy. Our investigation suggests that such Tb 3+ -doped transparent KLu 2 F 7 glass ceramics may present potential application in X-ray scintillator for slow event detection. |
| Databáze: | OpenAIRE |
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