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首页> 外文期刊>Physica, B. Condensed Matter >Photoluminescence properties of Ce3+, Mn2+ co-doped Sr2LiSiO4F phosphor
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Photoluminescence properties of Ce3+, Mn2+ co-doped Sr2LiSiO4F phosphor

机译:Ce3 +,Mn2 +共掺杂Sr2LiSiO4F荧光粉的发光特性

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Sr2LiSiO4F co-doped with Ce3+, Mn2+ have been synthesized by means of solid state reactions. Their photoluminescence (PL) emission spectra, excitation spectra and the decay profiles of Ce3+ emission have been measured at room temperature. The emission peak around 410 nm is ascribed to the 5d(1) to F-2(5/2) and F-2(7/2) transitions of Ce3+ ions, while the peak around 680 nm is ascribed to the T-4(1)-(6)A(1) transition of Mn2+ ions. The decay rate of the 5d state within Ce3+ ion under 355 nm laser excitation becomes faster with the increase of Mn2+ concentration. The analysis of the observed spectra confirms that there exists energy transfer from Ce3+ to Mn2+.
机译:通过固相反应合成了Ce3 +,Mn2 +共掺杂的Sr2LiSiO4F。在室温下已测量了它们的光致发光(PL)发射光谱,激发光谱和Ce3 +发射的衰减曲线。 410 nm附近的发射峰归因于Ce3 +离子的5d(1)至F-2(5/2)和F-2(7/2)跃迁,而680 nm附近的峰归因于T-4 Mn2 +离子的(1)-(6)A(1)跃迁。随着Mn2 +浓度的增加,在355 nm激光激发下Ce3 +离子内5d态的衰减速率变快。对观察到的光谱的分析证实,存在从Ce3 +到Mn2 +的能量转移。

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