Synthesis and luminescence of Pr3+-doped Lu2MoO6 and Y2MoO6 phosphors for white light-emitting diodes
Synthesis and luminescence of Pr3+-doped Lu2MoO6 and Y2MoO6 phosphors for white light-emitting diodes
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白光发光二极管用Pr3掺杂Lu2MoO6和Y2MoO6荧光粉的合成与发光
DOI：
10.1007/s00339-021-04670-y
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发表时间：
2021-06
期刊：
影响因子：
--
通讯作者：
Li Zhao
中科院分区：
文献类型：
--
作者：
Wu Kunyao;Xi Zengzhe;Li Zhao
在1200℃高温固相反应下，合成了一系列xPr3+ （x = 0.02, 0.04, 0.06, 0.08和0.10）掺杂的Lu2MoO6和Y2MoO6。利用x射线衍射、光致发光（PL）光谱仪、扫描电镜、能量色散光谱仪和能谱图对样品的物相识别、发光性能、表面形貌和元素分析进行了表征。结果表明：Pr3+的掺杂没有改变纯相Lu2MoO6和Y2MoO6的单斜晶系；掺杂0.08 mol Pr3+的Lu2MoO6和Y2MoO6的发光性能最好。Lu2MoO6: Pr3+和Y2MoO6: Pr3+荧光粉可被蓝光激发产生红黄色光。Lu2MoO6: 0.08Pr3+荧光粉发出温暖的红黄色光，CIE坐标为（0.4638,0.4905），CCT值为3185 K，发射寿命为34.8µs，高于以往报道。首次报道Y2MoO6: 0.08Pr3+荧光粉发出暖红黄色光，CIE坐标为（0.4657,0.4983），CCT值为3160 K，发射寿命为112.4µs。本研究结果表明，Lu2MoO6: Pr3+和Y2MoO6: Pr3+荧光粉可能是白光发光二极管的理想候选材料。
A series of xPr3+ (x = 0.02, 0.04, 0.06, 0.08 and 0.10) doped Lu2MoO6 and Y2MoO6 were synthesized using high temperature solid-state reaction at 1200 °C for 4 h. X-ray diffraction, photoluminescence (PL) spectrometer, scanning electron microscopy, energy dispersive spectrometer and mapping were used to characterize the phase identification, luminescent properties, surface morphology and elemental analysis of the samples. The results show that: the doping of Pr3+ does not change the monoclinic system of Lu2MoO6 and Y2MoO6, both of which are pure phases. Lu2MoO6 and Y2MoO6 that doped 0.08 mol Pr3+ all show the best luminescence performance. Lu2MoO6: Pr3+ and Y2MoO6: Pr3+ phosphors can be excited by blue light to produce reddish yellow light. Lu2MoO6: 0.08Pr3+ phosphor emits warm reddish yellow light with the CIE coordinates of (0.4638, 0.4905), the CCT value of 3185 K and the emission lifetimes is 34.8 µs, higher than previous reports. The Y2MoO6: 0.08Pr3+ phosphor is reported for the first time to emit warm reddish yellow light with the CIE coordinates of (0.4657, 0.4983), the CCT value of 3160 K and the emission lifetimes is 112.4 µs. The present results demonstrate that Lu2MoO6: Pr3+ and Y2MoO6: Pr3+ phosphors may be a promising candidate for white light-emitting diodes.
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影响因子：
3.7
作者：
Suxia Yan;Jiahua Zhang;Xia Zhang;Shaozhe Lu;X. Ren;Z. Nie;Xiaojun Wang
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发表时间：
2017-08
期刊：
Journal of Materials Science: Materials in Electronics
影响因子：
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作者：
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作者：
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