Luminescence intensity enhancement of Eu2+ and Eu3+ by Tb3+ in LiLa9(SiO4)(6)O2
Luminescence intensity enhancement of Eu2+ and Eu3+ by Tb3+ in LiLa9(SiO4)(6)O2
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LiLa9(SiO4)(6)O2 中 Tb3 对 Eu2 和 Eu3 的发光强度增强
DOI：
10.1088/0022-3727/49/22/225105
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发表时间：
2016
影响因子：
3.4
通讯作者：
Hou Dejian
中科院分区：
文献类型：
--
作者：
Xie Mubiao;Zhu Guoxian;Pan Rongkai;Li Dongyu;Hou Dejian
在co还原气氛下，采用固相反应法制备了新型发黄荧光粉lil9 (sio4) 6o2: 0.05 Eu, xTb （x= 0,0.01, 0.03, 0.02, 0.04, 0.06, 0.08, 0.10）。对激发光谱、发射光谱和荧光衰减进行了详细的测量和讨论。样品LiLa 9 (sio4) 6o2: 0.05 Eu的荧光光谱结果显示，LiLa 9 (sio4) 6o2宿主体内仍检测到少量Eu 3+离子。在近紫外光激发下，tb3 +离子的引入增强了LiLa 9 (sio4) 6 o2: 0.05 Eu的发射强度，但其发射颜色变化不大。结果表明，lil9 (sio4) 6 o2: Eu， Tb是一种有潜力的用于n-UV白光二极管的磷光转换材料。
Novel yellow-emitting phosphors LiLa 9 (SiO 4) 6 O 2: 0.05 Eu, xTb (x= 0, 0.01, 0.03, 0.02, 0.04, 0.06, 0.08, 0.10) were prepared by a solid-state reaction in a CO-reducing atmosphere. The excitation and emission spectra, and the fluorescence decays were measured and discussed in detail. The fluorescence spectra results of sample LiLa 9 (SiO 4) 6 O 2: 0.05 Eu reveal that still a small amount of Eu 3+ ions are detected in the LiLa 9 (SiO 4) 6 O 2 host. The introduction of Tb 3+ ions can enhance the emission intensity of LiLa 9 (SiO 4) 6 O 2: 0.05 Eu under near-ultraviolet light excitation but they do not vary the emission color much. The results indicate that the yellow-emitting phosphors LiLa 9 (SiO 4) 6 O 2: Eu, Tb can be considered as potential phosphor-converted materials for n-UV white light-emitting diodes.