| 光谱学与光谱分析 |
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| Influence of Eu2+ Content on the Spectral Characteristics of BaMgAl10O17∶Eu2+ Phosphors |
| CHEN Zhe,XIE Hong,YAN You-wei* |
| State Key Lab of Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract Nanocrsytalline Ba1-xMgAl10O17∶xEu2+ (0.05≤x≤0.4) blue-emitting phosphor was successfully prepared by low-temperature combustion synthesis. The influence of different Eu content on the spectral characteristics of Ba1-xMgAl10O17∶xEu2+ was mainly investigated. The results of XRD and SEM analysis show that the sample is single phase and its average grain size is about 30 nm. The luminescence property of Ba1-xMgAl10O17∶xEu2+ phosphor is considerably influenced by Eu2+ concentration. In an appropriate Eu2+ doping concentration range, the intensity of the fluorescence of Ba1-xMgAl10O17∶xEu2+ was increased obviously with increasing the Eu2+ doping concentration, owing to adding the number of luminescent centers and enhancing the energy transfer between Eu2+ ions. The optimum emission intensity was reached at x＝0.2. However, as the Eu2+ doping concentration was higher than 0.2, the intensity of the fluorescence was reduced, due to the concentration quenching occurrence.
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Received: 2006-01-09
Accepted: 2006-04-16
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Corresponding Authors:
YAN You-wei
E-mail: wutpds@public.wh.hb.cn
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| Cite this article: |
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CHEN Zhe,XIE Hong,YAN You-wei. Influence of Eu2+ Content on the Spectral Characteristics of BaMgAl10O17∶Eu2+ Phosphors[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(04): 657-659.
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https://www.gpxygpfx.com/EN/Y2007/V27/I04/657 |
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