| Dy3+/Tb3+双掺含SrWO4晶相玻璃陶瓷的合成与能量传递 |
| Synthesis and Energy Transfer of Dy3+/Tb3+ Co-doped Glass Ceramics Containing SrWO4 Crystal |
| 作者 | 单位 | E-mail | | 魏玉霖 | 长春理工大学, 化学与环境工程学院, 长春 130022 | | | 张洪波 | 长春理工大学, 化学与环境工程学院, 长春 130022 | zhb5388460@126.com | | 王彤 | 长春理工大学, 化学与环境工程学院, 长春 130022 | | | 邹翔宇 | 长春理工大学, 化学与环境工程学院, 长春 130022 | | | 苏春辉 | 长春理工大学, 化学与环境工程学院, 长春 130022
长春师范大学, 长春 130022 | sch@cust.edu.cn |
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| 摘要: 采用熔融晶化法成功制备了Dy3+/Tb3+双掺含SrWO4晶相玻璃陶瓷，并对其光学性能进行研究。利用差示扫描量热分析仪（DSC）确定了热处理温度，利用X射线衍射（XRD）确定了玻璃基质中有SrWO4晶粒析出，并结合透过率曲线确定最佳析晶温度和时间为710℃保温1.5 h。探讨了当Dy2O3的浓度为0.8%（n/n）时，Tb4O7浓度对玻璃陶瓷样品发光性能的影响，在Dy3+/Tb3+双掺玻璃陶瓷的发射光谱中表明：在350 nm激发下，544 nm处存在明显的发射峰。随着Tb4O7浓度增加，能量传递效率逐渐增加。当Tb4O7浓度达到1.9%（n/n）时，绿光发射强度达到最大值。结合Dexter能量传递理论和荧光衰减曲线，确定了Dy3+到Tb3+存在能量传递。 |
| 关键词: SrWO4 Dy3+/Tb3+双掺 玻璃陶瓷 发光 能量传递 |
| 基金项目: 吉林省科技厅项目（No.20190802014ZG）资助。 |
| 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 |
| 投稿时间：2019-07-05 修订日期：2019-09-18 |
| 摘要点击次数: 1304 |
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| 魏玉霖,张洪波,王彤,邹翔宇,苏春辉.Dy3+/Tb3+双掺含SrWO4晶相玻璃陶瓷的合成与能量传递[J].无机化学学报,2019,35(12):2311-2317. |
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