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中国地质大学(北京) 材料科学与工程学院 北京,100083
纸质出版日期:2012-9-10,
收稿日期:2012-6-3,
修回日期:2012-7-3,
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张园园, 夏志国, 吴微微. Sr<sub>3</sub>Gd<sub>0.5-<em>x</em></sub>Tb<sub>0.5</sub>(BO<sub>3</sub>)<sub>3</sub>∶<em>x</em>Eu<sup>3+</sup>的发光性质及能量传递[J]. 发光学报, 2012,33(9): 949-953
ZHANG Yuan-yuan, XIA Zhi-guo, WU Wei-wei. Luminescence Properties and Energy Transfer of Sr<sub>3</sub>Gd<sub>0.5-<em>x</em></sub>Tb<sub>0.5</sub>(BO<sub>3</sub>)<sub>3</sub>∶<em>x</em>Eu<sup>3+</sup>[J]. Chinese Journal of Luminescence, 2012,33(9): 949-953
张园园, 夏志国, 吴微微. Sr<sub>3</sub>Gd<sub>0.5-<em>x</em></sub>Tb<sub>0.5</sub>(BO<sub>3</sub>)<sub>3</sub>∶<em>x</em>Eu<sup>3+</sup>的发光性质及能量传递[J]. 发光学报, 2012,33(9): 949-953 DOI: 10.3788/fgxb20123309.0949.
ZHANG Yuan-yuan, XIA Zhi-guo, WU Wei-wei. Luminescence Properties and Energy Transfer of Sr<sub>3</sub>Gd<sub>0.5-<em>x</em></sub>Tb<sub>0.5</sub>(BO<sub>3</sub>)<sub>3</sub>∶<em>x</em>Eu<sup>3+</sup>[J]. Chinese Journal of Luminescence, 2012,33(9): 949-953 DOI: 10.3788/fgxb20123309.0949.
采用高温固相法制备了Sr
3
Gd
0.5-
x
Tb
0.5
(BO
3
)
3
∶
x
Eu
3+
系列荧光粉
并研究了其发光性质与能量传递过程。Sr
3
Gd
0.5-
x
Tb
0.5
(BO
3
)
3
∶
x
Eu
3+
系列荧光粉在300~400 nm的近紫外光有效激发下产生489
544
594
614
624 nm的发射谱线
分别对应于Tb
3+
和Eu
3+
的特征跃迁。荧光寿命测试表明
随着Eu
3+
掺杂浓度的增大
Tb
3+
寿命逐渐缩短
证实该体系中存在Tb
3+
→Eu
3+
的能量传递过程
能量传递效率最大值为20.53%。在对Tb
3+
和Eu
3+
的能级结构进行分析的基础上
进一步探讨了Tb
3+
→Eu
3+
能量传递过程。Sr
3
Gd
0.5-
x
Tb
0.5
-(BO
3
)
3
∶
x
Eu
3+
系列荧光粉具有良好的红色发光性质
是潜在的可以应用于白光LED的光转换材料。
Series of Sr
3
Gd
0.5-
x
Tb
0.5
(BO
3
)
3
∶
x
Eu
3+
phosphors were prepared by the high temperature solid-phase method
and their luminescent properties and the energy transfer process were investigated. Sr
3
Gd
0.5-
x
Tb
0.5
(BO
3
)
3
∶
x
Eu
3+
phosphors can produce 489
544
594
614
624 nm emission lines under near-ultraviolet light (300~400 nm) excitation. The lifetime of Tb
3+
decreased with the increasing addition of Eu
3+
which proved there exist energy transfer process from Tb
3+
to Eu
3+
. When the mole fraction of Eu
3+
was 0.07
the lifetime of Tb
3+
dropped to 1.20 ms and the energy transfer efficiency was calculated to be 20.53%. Meanwhile
the energy transfer process from Tb
3+
to Eu
3+
was further studied by analyzing energy level structures of Tb
3+
and Eu
3+
. The phosphors exhibit good red luminescence properties
which can be used in white light emitting diodes (LEDs).
白光LEDSr3Gd0.5-xTb0.5(BO3)3∶xEu3+能量传递
LEDSr3Gd0.5-xTb0.5(BO3)3∶xEu3+energy transfer
Wang Z H. Research developments of novel phosphors for high powder LEDs [J]. Materials Review (材料导报), 2010, 24(7):1-5 (in Chinese).
Zhuo F P, Zhang W, Huo J M, et al. Synthesize and luminescence properties of Na2CaSiO4∶RE3+(RE=Ce3+, Tb3+, Eu3+) [J]. Chin. J. Lumin.(发光学报), 2012, 33(3):238-242 (in Chinese).
Wang L, Zhang X, Hao Z D, et al. Energy transfer in Y3Al5O12∶Ce3+,Cr3+ and Y3Al5O12∶Ce3+, Pr3+, Cr3+ phosphors [J]. Chin. J. Lumin.(发光学报), 2011, 32(5):418-422 (in Chinese).
Lin H. Studies of luminescence characteristics of Eu3+-doped rare earth borates REBaB9O16 (RE=rare earth ions and Y) . Lanzhou: Lanzhou University, 2011 (in Chinese).
Pan J G, Chen H B, Lin J L, et al. Experimental studies of Nd3+-doped crystal-pulsed laser-pumped by xenon flashlamp [J]. Journal of Ningbo University (宁波大学学报), 2006, 19(1):27-29 (in Chinese).
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Shyichuk A A, Lis S. Photoluminescence properties of nanosized strontium-yttrium borate phosphor Sr3Y2(BO3)4∶Eu3+ obtained by the sol-gel pechini method [J]. J. Rare Earths, 2011, 29(12):1161-1165.
Yang Z P, Li L H, Lu Y J, et al. Preparation and luminescence properties of Ba3Tb(BO3)3∶Eu3+ phosphor [J]. J. Chin. Ceramic Society (硅酸盐学报), 2009, 37(9):1510-1513 (in Chinese).
Zhou L Y, Huang J L, Yi L H, et al. Luminescent properties of Ba3Gd(BO3)3∶Eu3+ phosphor for white LED applications [J]. J. Rare Earths, 2009, 27(1):55-57.
Liu G H. Rare Earth Materials and Application Technology [M]. Beijing: Chemical Industry Press, 2005:296 (in Chinese).
Guan L, Wang Y, Chen W H, et al. Fabrication and luminescent properties of red phosphor M3BO6∶Eu3+ (M=Ln, Y) [J]. J. Rare Earths, 2010, 28:295-298.
Gai T X, Chang S L. Study on photoluminescent material take borate as host [J]. Journal of Yanbian University (延边大学学报), 1997, 23(3):61-65,78 (in Chinese).
Mikhailik V B, Kraus H. VUV sensitization of Eu3+ emission by Tb3+ in Ba3Tb(PO4)3-Eu [J]. J. Lumin., 2009, 129(9):945-947.
Xia Z G, Wang X M, Wang Y X, et al. Synthesis, structure, and thermally stable luminescence of Eu2+-doped Ba2Ln-(BO3)2Cl (Ln= Y, Gd and Lu) host compounds [J]. Inorg. Chem., 2011, 50(20):10134-10142.
Zhong R X, Zhang J H, Hao Z D, et al. Luminescent properties and energy transfer in SrAl12O19∶Eu2+, Cr3+ [J]. Chin. J. Lumin.(发光学报), 2010, 31(5):728-731 (in Chinese).
Zhang Siyuan. Spectroscopy of Rare Earth Ions:Spectral Properties and Spectral Theory [M]. Beijing: Science Press, 2008:138 (in Chinese).
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