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| Synthesis and Energy Transfer of Dy3+/Tb3+ Co-doped Glass Ceramics Containing SrWO4 Crystal |
| Author Name | Affiliation | E-mail | | WEI Yu-Lin | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | | | ZHANG Hong-Bo | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | zhb5388460@126.com | | WANG Tong | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | | | ZOU Xiang-Yu | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China | | | SU Chun-Hui | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China
Changchun Normal University, Changchun 130022, China | sch@cust.edu.cn |
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| Abstract: Dy3+/Tb3+ co-doped glass ceramics containing SrWO4 crystal were synthesized successfully by melt-crystallization method and luminescence properties were studied. The optimum heat treatment temperature and time were determined by differential scanning calorimetry (DSC), the precipitation of SrWO4 grains in the precursor glass was determined by X-ray diffraction (XRD) and combining with the transmittance curves, the optimum heat treatment system was determined at 710℃ for 1.5 h. When the concentration of Dy2O3 was 0.8%(n/n), the effect of Tb4O7 concentration on the luminescence properties of glass ceramic samples were discussed. It could be seen that with the excitation wavelength 350 nm, there was an obvious peak at 544 nm in the emission spectra of Dy3+/Tb3+ co-doped glass ceramics. With the increase of Tb4O7 concentration, energy transfer efficiency increased gradually, and when the Tb4O7 concentration was 1.9%(n/n), the luminescence intensity of green light reached maximum.Basing on the energy transfer theory of Dexter and the decay curves, the energy transfer from Dy3+ to Tb3+ was determined. |
| Keywords: SrWO4 Dy3+/Tb3+ co-doped glass ceramics luminescence energy transfer |
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| WEI Yu-Lin,ZHANG Hong-Bo,WANG Tong,ZOU Xiang-Yu,SU Chun-Hui.Synthesis and Energy Transfer of Dy3+/Tb3+ Co-doped Glass Ceramics Containing SrWO4 Crystal[J].Chinese Journal of Inorganic Chemistry,2019,35(12):2311-2317. |
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