Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor
文献类型：期刊论文
| 作者 | Sun, D. S.; Zhang, L. L.; Hao, Z. D.; Zhang, X. ; Pan, G. H.; Wu, H. J.; Luo, Y. S.; He, S.; Zhao, H. F.; Zhang, J. H.
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| 刊名 | Dalton Transactions
 |
| 出版日期 | 2018 |
| 卷号 | 47期号:46页码:16723-16728 |
| 关键词 | high-temperature synthesis luminescence properties crystal-structure thermal-degradation pressure synthesis optical-properties red phosphor light semiconductor caalsin3-eu2+ Chemistry |
| ISSN号 | 1477-9226 |
| DOI | 10.1039/c8dt03936d |
| 英文摘要 | The Y3Si6N11:Ce3+ yellow phosphor shows a well-known approximate to 150 nm broad emission band, exhibiting a potential application in UV or blue based white LEDs. We report the observation of two Ce3+ emitting centers, the superposition of which forms the broad emission band. One center has a green emission band peaked at 539 nm (Ce1) with the first excitation band at 420 nm. The other has a red emission band peaked at 600 nm (Ce2) with the first excitation band at 485 nm. The two Ce3+ centers are assigned to the substitution for two Y sites in Y3Si6N11. It was found that the Ce2 emission intensity is continuously enhanced relative to that of Ce1 with an increasing Ce3+ concentration, thus leading to a redshift of the broadband. Meanwhile, a more notable fluorescence lifetime shortening of Ce1 compared to Ce2 with an increasing Ce3+ concentration was observed. These results suggest the occurrence of energy transfer from Ce1 to Ce2. The temperature-dependent luminescence intensity of Y3Si6N11:Ce3+ was also studied in the range of 93 to 473 K. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/61203]  |
| 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 | Sun, D. S.,Zhang, L. L.,Hao, Z. D.,et al. Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor[J]. Dalton Transactions,2018,47(46):16723-16728. |
| APA | Sun, D. S..,Zhang, L. L..,Hao, Z. D..,Zhang, X..,Pan, G. H..,...&Zhang, J. H..(2018).Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor.Dalton Transactions,47(46),16723-16728. |
| MLA | Sun, D. S.,et al."Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor".Dalton Transactions 47.46(2018):16723-16728. |
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