| Quenching mechanism of Er^3＋ emissions in Er^3＋-and Er^3＋/Yb^3＋-doped SrAl12O19 nanophosphors |
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| 引用本文： | 闫武钊,陈永虎,尹民. Quenching mechanism of Er^3＋ emissions in Er^3＋-and Er^3＋/Yb^3＋-doped SrAl12O19 nanophosphors[J]. 中国稀土学报(英文版), 2011, 29(3): 202-206. DOI: 10.1016/S1002-0721(10)60431-0 |
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| 作者姓名： | 闫武钊 陈永虎 尹民 |
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| 作者单位： | Department of Physics, University of Science and Technology of China, Hefei 230026, China |
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| 基金项目： | supported by National Natural Science Foundation of China（10774140 11011120083）; Knowledge Innovation Project of the Chinese Academy of Sciences（KJCX2-YW-M11）; Special Foundation for Talents of Anhui Province China（2007Z021） |
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| 摘 要： | Nanoscaled SrAl12O19:Er3+ and SrAl12O19:Yb3+,Er3+ phosphors were synthesized by a combustion method.The emission intensities of every sample were compared by a new method with the emission of codoped Gd3+ ions as a reference.Compared with their bulk material prepared by the solid-state reaction method,a higher Er3+ quenching concentration,as high as 20%,was observed in the nanoscaled phosphors for both visible(VIS) and near infrared(NIR) emissions.The higher quenching concentration in both VIS and NIR regions for nanoscaled samples are related to the structure characteristics of the nano particles.The influence of the introduction of Yb3+ ions on the emission spectra intensity was also investigated and discussed.
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| 关 键 词： | erbium ytterbium gadolinium SrAl12O19 near infrared nanoscaled phosphor rare earths |
| 收稿时间： | 2010-04-23 |
| 修稿时间： | 2010-10-26 |
Quenching mechanism of Er emissions in Er - and Er/Yb-doped SrAl12O19 nanophosphors |
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| Wuzhao YAN, Yonghu CHEN,Min YIN,. Quenching mechanism of Er emissions in Er - and Er/Yb-doped SrAl12O19 nanophosphors[J]. Journal of Rare Earths, 2011, 29(3): 202-206. DOI: 10.1016/S1002-0721(10)60431-0 |
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| Authors: | Wuzhao YAN Yonghu CHEN Min YIN |
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| Affiliation: | a Department of Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | |
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| Keywords: | erbium ytterbium gadolinium SrAl12O19 near infrared nanoscaled phosphor rare earths |
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