Observation of a red Ce3+ center in SrLu2O4:Ce3+ phosphor and its potential application in temperature sensing
文献类型：期刊论文
| 作者 | S.Zhang; Z.D.Hao; L.L.Zhang; G.H.Pan; H.J.Wu; H.Wu; Y.S.Luo |
| 刊名 | Dalton Transactions
 |
| 出版日期 | 2019 |
| 卷号 | 48期号:16页码:5263-5270 |
| 关键词 | up-conversion luminescence,energy-transfer,emitting phosphor,photoluminescence properties,high-efficiency,behavior,thermometry,emission,stability,srsc2o4,Chemistry |
| ISSN号 | 1477-9226 |
| DOI | 10.1039/c9dt00789j |
| 英文摘要 | In Ce3+ activated SrLn(2)O(4) type phosphors (Ln = Y, Lu, Sc, etc.) only one Ce3+ center was previously reported to show a blue emission band. In this paper, we report the observation of a second Ce3+ center in SrLu2O4:Ce3+. The new center shows a red emission band peaking at 600 nm with an excitation band at 485 nm. We attributed the new center (Ce(ii)) to the substitution of the Lu3+ site and the original blue center (Ce(i)) to the substitution of the Sr2+ site. Spectroscopy studies indicate that Ce(i) centers are preferentially formed at a low doping concentration and the number ratio of Ce(i)/Ce(ii) decreases with increasing Ce3+ concentration until beyond 0.002. The fluorescence lifetimes of the two centers were measured for various doping concentrations. Energy transfer from Ce(i) to Ce(ii) was observed. It was found that the emission intensity of Ce(ii) centers reduces much faster than that of Ce(i) with increasing temperature from 83 K up to 350 K, implying their potential application in temperature sensing based on their temperature dependent intensity ratios. A relative sensing sensitivity as high as 2.28% K-1 at 283 K was achieved. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/62791]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | S.Zhang,Z.D.Hao,L.L.Zhang,et al. Observation of a red Ce3+ center in SrLu2O4:Ce3+ phosphor and its potential application in temperature sensing[J]. Dalton Transactions,2019,48(16):5263-5270. |
| APA | S.Zhang.,Z.D.Hao.,L.L.Zhang.,G.H.Pan.,H.J.Wu.,...&Y.S.Luo.(2019).Observation of a red Ce3+ center in SrLu2O4:Ce3+ phosphor and its potential application in temperature sensing.Dalton Transactions,48(16),5263-5270. |
| MLA | S.Zhang,et al."Observation of a red Ce3+ center in SrLu2O4:Ce3+ phosphor and its potential application in temperature sensing".Dalton Transactions 48.16(2019):5263-5270. |
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