Luminescence and energy transfer of Tm(3+) and Dy(3+) co-doped Na(3)ScSi(2)O(7) phosphors.
Luminescence and energy transfer of Tm(3+) and Dy(3+) co-doped Na(3)ScSi(2)O(7) phosphors.
复制标题
Tm3和Dy3共掺杂Na3ScSi2O7荧光粉的发光和能量转移
作者：
采用常规固相反应法制备了一系列Tm3+和Dy3+离子单掺杂或共掺杂的Na3ScSi2O7 （NSSO）荧光粉。研究了样品的x射线衍射（XRD）图谱、光致发光（PL）性能、荧光衰减曲线和能量转移行为。XRD谱图表明，样品的衍射峰与JCPDS标准数据一致。在紫外激发下，单独掺杂Tm3+和Dy3+离子的NSSO荧光粉呈现出蓝色和黄色的特征发射。NSSO:Tm3+、Dy3+的发射颜色可以通过相应的Tm3+ -Dy3 +能量转移来调节。此外，NSSO:0.04Tm3+，0.13Dy3+的色度坐标为（0.3195,0.3214），接近理想白光（0.333,0.33）。这些结果表明，NSSO:Tm3+，Dy3+在白光二极管（wled）中具有潜在的应用价值。采用常规固相反应法制备了一系列Tm3+和Dy3+离子单掺杂或共掺杂的Na3ScSi2O7 （NSSO）荧光粉。
A series of Tm3+ and Dy3+ ions single- or co-doped Na3ScSi2O7 (NSSO) phosphors were prepared by a conventional solid state reaction method. The X-ray diffraction (XRD) patterns, photoluminescence (PL) properties, fluorescence decay curve and energy transfer behavior of the samples were studied. The XRD patterns show that all the diffraction peaks of the samples are consistent with the JCPDS standard data. Under UV excitation, the singly doped NSSO phosphors with Tm3+ and Dy3+ ions show blue and yellow characteristic emission. The emission color of NSSO:Tm3+,Dy3+ can be adjusted by the corresponding Tm3+–Dy3+ energy transfer. In addition, the chromaticity coordinate of NSSO:0.04Tm3+,0.13Dy3+ is (0.3195, 0.3214), which is close to the ideal white light (0.333, 0.33). These results show that NSSO:Tm3+,Dy3+ has potential application value in white light emitting diodes (WLEDs). A series of Tm3+ and Dy3+ ions single- or co-doped Na3ScSi2O7 (NSSO) phosphors were prepared by a conventional solid state reaction method.
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