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河北大学 物理科学与技术学院,河北 保定,071002
收稿日期:2011-06-12,
修回日期:2011-07-30,
网络出版日期:2011-10-22,
纸质出版日期:2011-10-22
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杨志平, 赵青, 潘飞, 宋延春, 韩月, 马淑媛. CaZn<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>∶Eu<sup>3+</sup>的制备及其发光性能[J]. 发光学报, 2011,32(10): 1009-1013
YANG Zhi-ping, ZHAO Qing, PAN Fei, SONG Yan-chun, HAN Yue, MA Shu-yuan. Synthesis and Luminescent Properties of CaZn<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>∶ Eu<sup>3+</sup> Phosphor[J]. Chinese Journal of Luminescence, 2011,32(10): 1009-1013
杨志平, 赵青, 潘飞, 宋延春, 韩月, 马淑媛. CaZn<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>∶Eu<sup>3+</sup>的制备及其发光性能[J]. 发光学报, 2011,32(10): 1009-1013 DOI:
YANG Zhi-ping, ZHAO Qing, PAN Fei, SONG Yan-chun, HAN Yue, MA Shu-yuan. Synthesis and Luminescent Properties of CaZn<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>∶ Eu<sup>3+</sup> Phosphor[J]. Chinese Journal of Luminescence, 2011,32(10): 1009-1013 DOI:
采用高温固相法合成了CaZn
2
(PO
4
)
2
∶Eu
3+
橙红色荧光粉
研究了其发光特性。该荧光粉在350~410 nm处有一个宽带激发
其激发主峰位于394 nm。在紫外激发下
发射峰分别由Eu
3+
的
5
D
0
7
F
1
(585
595 nm)、
5
D
0
7
F
2
(615、622 nm)、
5
D
0
7
F
3
(645 nm)及
5
D
0
7
F
4
(687
700 nm)4组线状峰构成
其中以595 nm发射峰最强。探讨了Eu
3+
的掺杂浓度对样品发光强度的影响以及Eu
3+
发射的橙/红光比值随浓度的变化关系
确定Eu
3+
的最佳掺杂摩尔分数为10%。实验结果表明
加入不同电荷补偿剂Li
+
Na
+
K
+
均能使发光强度得到提高
其中以Li
+
最佳。
The salmon pink phosphor CaZn
2
(PO
4
)
2
∶Eu
3+
was synthesized by high temperature solid state reaction
and its luminescent characteristics were also investigated. The excitation spectra contains a broad band extending from 350 to 420 nm
which is suitable for UVLED chip
and its main peak located at 394 nm. It showed that the emission spectra of the phosphor was composed of four group major emission peaks locating at 585 and 595 nm
615 and 622 nm
654 nm
687 and 700 nm which corresponding to the
5
D
0
7
F
1
5
D
0
7
F
2
5
D
0
7
F
3
5
D
0
7
F
4
typical transition of Eu
3+
respectively. The effects of doped-Eu
3+
concentration to the emission intensity and the ratio of
I
O
/
I
R
were also investigated. It showed that the optimum doped-Eu
3+
mole fraction is 10%. The charge compensation of Li
+
Na
+
and K
+
ions to the emission intensity was also studied
and it found that Li
+
ions gave the best improvement to enhance the intensity of the emission.
Longo L D, Ferrari M, Zanghellini E, et al. Optical spectroscopy of zinc borate glass activated by Pr3+ ions [J]. J. Non-Crystalline Solids., 1998, 231 (1-2):178-188.[2] Zou Wenguo, Yang Zhongsen, Lv Mengkai, et al. Study on the luminescence of Eu3+, Dy3+-dopd Zn3(BO3)2 nanoparticles [J]. J. Shandong University (山东大学学报), 2006, 36 (3):9-12 (in Chinese).[3] Liu Jie, Sun Jiayue, Shi Chunshan. The development of the white converter based on LED [J]. Chem. (化学通报), 2005, 68 (6):417-424 (in Chinese).[4] Yang Zhiping, Wang Shaoli, Yang Guangwei, et al. Preparation and luminescent properties of green NaCaPO4∶Tb3+ phosphor [J]. Chin. J. Lumin. (发光学报), 2008, 29 (1):80-84 (in Chinese).[5] Yang Zhiping, Ma Xin, Song Zhaofeng, et al. Luminescent properties of LiSrPO4∶Tb3+ green phosphor [J]. Chin. J. Lumin. (发光学报), 2010, 31 (2):185-188 (in Chinese).[6] Yu M, Lin J, Fu J, et al. Sol-gel fabrication, patterning and photoluminescent properties of LaPO4∶Ce3+,Tb3+ nanocrystalline thin films [J]. Chemical Phys. Lett., 2003, 371 (1-2):178-183.[7] Yang Zhiping, Yang Guangwei, Wang Shaoli, et al. Preparation and luminescent properties of BaZnP2O7∶Eu3+ salmon pink-emitting phosphor [J]. Chem. J. Chin. Univer. (高等学校化学学报), 2007, 28 (9):1631-1633 (in Chinese).[8] Yang W J, Chen T M. White-light generation and energy transfer in SrZn2(PO4)2∶Eu, Mn phosphor for ultraviolet light-emitting diodes [J]. Appl. Phys. Lett., 2006, 88 (10):101903-1-3.[9] Ding Haiyan, Huang Yanlin, Cao Yonggang. Luminescence spectrum and crystallographic structure of Eu3+ doped in SrZn2(PO4)2 crystal [J]. J. Synthetic Crystals (人工晶体学报), 2009, 38 (1):203-209 (in Chinese).[10] Yu Yaqin, Li Mei, Liu Shuzhen. Synthesis and properties of lanthanide element orthophosphate [J]. J. The Chine. Ceramic Society (硅酸盐学报), 1989, 17 (6):485-489 (in Chinese).[11] Ofelt G S. Intensities of crystal spectra of rare-earth ions [J]. J. Chem. Phys., 1962, 37 (3):511-520.[12] Judd B R. Optical absorption intensities of rare-earth ions [J]. Phys. Rev., 1962, 127 (3):750-761.[13] Sun L D, Qian C, Liao C S, et al. Luminescent properties of Li+ doped nanosized Y2O3∶Eu3+ [J]. Solid State Commun., 2001, 119 (6):393-396.
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