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1. 河北大学 物理科学与技术学院,河北 保定,071002
2. 河北大学电子信息工程学院,河北 保定,071002
纸质出版日期:2012-6-10,
网络出版日期:2012-6-10,
收稿日期:2012-3-28,
修回日期:2012-4-12,
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杨志平, 宋延春, 韩月, 赵青, 潘飞, 周东站. 新型红色荧光粉Sr<sub>2</sub>ZnMoO<sub>6</sub>:Sm<sup>3+</sup>的制备与发光性能[J]. 发光学报, 2012,(6): 586-590
YANG Zhi-Peng, SONG Yan-Chun, HAN Yue, ZHAO Qing, PAN Fei, ZHOU Dong-Zhan. Synthesis and Luminescence Properties of A Novel Red Sr<sub>2</sub>ZnMoO<sub>6</sub>:Sm<sup>3+</sup> Phosphor[J]. Chinese Journal of Luminescence, 2012,(6): 586-590
杨志平, 宋延春, 韩月, 赵青, 潘飞, 周东站. 新型红色荧光粉Sr<sub>2</sub>ZnMoO<sub>6</sub>:Sm<sup>3+</sup>的制备与发光性能[J]. 发光学报, 2012,(6): 586-590 DOI: 10.3788/fgxb20123306.0586.
YANG Zhi-Peng, SONG Yan-Chun, HAN Yue, ZHAO Qing, PAN Fei, ZHOU Dong-Zhan. Synthesis and Luminescence Properties of A Novel Red Sr<sub>2</sub>ZnMoO<sub>6</sub>:Sm<sup>3+</sup> Phosphor[J]. Chinese Journal of Luminescence, 2012,(6): 586-590 DOI: 10.3788/fgxb20123306.0586.
采用高温固相法合成了Sr
2
ZnMoO
6
:Sm
3+
新型红色荧光材料
并对其发光特性进行了研究。XRD测量结果表明所制备样品为纯相Sr
2
ZnMoO
6
晶体。样品的发射光谱由一系列锐谱组成
分别位于563 nm(
4
G
5/2
6
H
5/2
)、598 nm(
4
G
5/2
6
H
7/2
)、607 nm(
4
G
5/2
6
H
7/2
)和645 nm(
4
G
5/2
6
H
9/2
)
最强发射为645 nm。样品激发光谱由电荷迁移带CT和Sm
3+
离子的特征激发峰组成
主激发峰位于284 nm(CT)和403 nm(
6
H
5/2
-
4
L
13/2
)。 随着Sm
3+
浓度的增大
Sr
2-
x
ZnMoO
6
:
x
Sm
3+
材料的发光强度先增大后减小
在
x
2%时
发生浓度猝灭现象。根据Dexter理论分析其猝灭机理为电偶极-电偶极相互作用。比较了Li
+
、Na
+
和K
+
作为电荷补偿剂的作用
发现均使Sr
2
ZnMoO
6
:Sm
3+
材料的发射强度得到增强
但以Li
+
补偿效果最为显著。
A novel red Sr
2
ZnMoO
6
:Sm
3+
phosphor was prepared by solid state reaction method
and its luminescence properties were studied. The X-ray diffraction patterns (XRD) showed that a pure Sr
2
ZnMoO
6
phase phosphor was obtained after sintered at 1 250 ℃. The emission spectrum of the Sr
2
ZnMoO
6
:Sm
3+
phosphor was characterized
which peaked at 563
598
607
645 nm
corresponding to the
4
G
5/2
6
H
5/2
4
G
5/2
6
H
7/2
and
4
G
5/2
6
H
9/2
transitions of Sm
3+
respectively. The strongest one appears at 645 nm. The excitation spectrum consisted of charge transfer band (284 nm) and characteristic transition (403 nm). The concentration quenching could be observed when
x
was more than 2%
and it was confirmed that the mechanism of concentration quenching was electric dipole-dipole interaction by Dexter theory. Under the condition of doping charge compensation of Li
+
Na
+
and K
+
the emission intensity of Sr
2
ZnMoO
6
:Sm
3+
was improved
and it was found that Li
+
ions gave the best boost. These Sr
2
ZnMoO
6
:Sm
3+
phosphors may be potentially used as red phosphors for white light-emitting diodes.
发光荧光粉钼酸锌锶浓度猝灭电荷补偿
luminescencephosphorSr2ZnMoO6concentration quenchingcharge compensation
Liu Haiyan, Sun Mingsheng, Yang Zhiping, et al. Luminescent properties of Sm3+ doped SrIn2O4 red emission phosphor [J]. Chin. J. Lumin.(发光学报), 2011, 32(1):38-41 (in Chinese).[2] Li Langkai, Chen Yongjie, Xiao Linjiu, et al. Synthesis and luminescence properties of full-color phosphor Ba3Ca4Mg-(SiO4)4:Eu2+,Mn2+ excited by near-UV light [J]. Rare Metal Materials and Engineering (稀有金属材料与工程), 2010, 39(z1):150-153 (in Chinese).[3] Wang Zhijun, Li Panlai, Yang Zhiping, et al. Preparation and luminescent characteristics of KBaPO4:Tb3+ phosphor [J]. Journal of Inorganic Materials (无机材料学报), 2011, 26(5):503-507 (in Chinese).[4] Lin Xiang, Qiao Xusheng, Fan Xianping. Synthesis and luminescence properties of a novel red SrMoO4:Sm3+,R+ phosphor [J]. Solid State Sciences, 2011, 13(3):579-583.[5] Liu Li, Yuan Ximing, Xie An, et al. Synthesis and luminescent properties of Eu3+-activated novel borate-based red emitting phosphors for white LED [J]. Chin. J. Lumin.(发光学报), 2011, 32(7):687-692 (in Chinese).[6] Geng Xiujuan, Tian Yanwen, Chen Yongjie, et al. Hydrothermal synthesis and spectral properties of MMoO4:Eu3+(M=Ca, Sr, Ba) red phosphors [J]. Chin. J. Lumin.(发光学报), 2011, 32(7):670-674 (in Chinese).[7] Yang Yuling, Li Xueming, Feng Wenlin, et al. Co-precipitation synthesis and photoluminescence of (Ca1-x-yLuy)MoO4:x Eu3+ red phospors [J]. Chinese Journal of Inorganic Chemistry (无机化学学报), 2011, 27(2):276-280 (in Chinese).[8] Tang Hongxia, Lv Shuchen. Preparation and luminescent properties of SrMoO4:Eu3+ phosphor for light emitting diode [J]. Acta Physica Sinica (物理学报), 2011, 60(3):037805-1-6 (in Chinese).[9] Geng Xiujuan, Tian Yanwen, Chen Yongjie, et al. Progress in studies on tungstate and molybdate red emitting phosphor used for white-LED [J]. Materials Review (材料导报), 2010, 24(7):54-57 (in Chinese).[10] Li Panlai, Wang Zhijun, Yang Zhiping, et al. Emission features of LiBaBO3:Sm3+ red phosphor for white LED [J]. Mater. Lett., 2009, 63(9-10):751-753.[11] Cao Shuai, Ma Yongqing, Quan Chunmei, et al. Photoluminescence properties of Ca9Y(VO4)7 and Ca9Y0.95Ln0.05-(VO4)7 (Ln3+=Eu3+,Sm3+,Pr3+) [J]. J. Alloys Compd., 2009, 487(1-2):346-350.[12] Wang Xiaoxiao, Xian Yulun, Wang Gang, et al. Luminescence investigation of Eu3+-Sm3+ co-doped Gd2-x-yEuxSmy-(MoO4)3 phosphors as red phosphors for UV InGaN-based light-emitting diode [J]. Opt.Mater., 2007, 30(4):521-526.[13] Dexter D L, Schulman J H. Theory of concentration quenching in inorganic phosphors [J]. J. Chem. Phys., 1954, 22(6):1063-1070.[14] Guan Li, Zuo Jingai, Liu Chong, et al. Influence of Tb3+ concentration on the luminescent properties of SrMoO4:Tb3+ [J]. Chin. J. Lumin.(发光学报), 2011, 32(8):779-783 (in Chinese).[15] Ding Hongyan, Sun Jiangting, Liu Wei, et al. Effect of Sm3+ doping on structural and luminescent properties of CaMoO4:Eu3+ red phosphors [J]. Chin. J. Lumin.(发光学报), 2011, 32(5):456-461 (in Chinese).
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