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Eu3+ 激活硼酸盐基质新型红色荧光粉的 制备及发光性能
Synthesis and Luminescent Properties of Eu3+-activated Novel Borate-based Red-emitting Phosphors for White LED
- 发光学报 2011年32卷第7期 页码：686-692
- 作者机构：
1. 中国地质大学(武汉) 教育部纳米矿物材料与应用工程研究中心,湖北 武汉,430074
2. 厦门理工学院 机械工程系,福建 厦门,361024
3. 中国地质大学(武汉) 可持续能源实验室,湖北 武汉,430074
- 作者简介：
- 基金信息：湖北省武汉市重大科技攻关 (200810321148)资助项目()
DOI：10.3788/fgxb20113207.0686
中图分类号： O482.31收稿日期：2011-01-10，
修回日期：2011-03-24，
网络出版日期：2011-07-22，
纸质出版日期：2011-07-22
- 稿件说明：
移动端阅览
刘丽, 袁曦明, 谢安, 杨明, 陈凤. Eu<sup>3+</sup> 激活硼酸盐基质新型红色荧光粉的 制备及发光性能[J]. 发光学报, 2011,32(7): 686-692
LIU Li, YUAN Xi-ming, XIE An, YANG Ming, CHEN Feng. Synthesis and Luminescent Properties of Eu<sup>3+</sup>-activated Novel Borate-based Red-emitting Phosphors for White LED[J]. Chinese Journal of Luminescence, 2011,32(7): 686-692
刘丽, 袁曦明, 谢安, 杨明, 陈凤. Eu<sup>3+</sup> 激活硼酸盐基质新型红色荧光粉的 制备及发光性能[J]. 发光学报, 2011,32(7): 686-692 DOI： 10.3788/fgxb20113207.0686.
LIU Li, YUAN Xi-ming, XIE An, YANG Ming, CHEN Feng. Synthesis and Luminescent Properties of Eu<sup>3+</sup>-activated Novel Borate-based Red-emitting Phosphors for White LED[J]. Chinese Journal of Luminescence, 2011,32(7): 686-692 DOI： 10.3788/fgxb20113207.0686.
摘要
采用传统高温固相反应法制备了一种新的白光LED用红色荧光粉LiLa
2
O
2
BO
3
∶ Eu
3+
并对其晶体结构及发光性能进行了系统研究。XRD分析证实LiLa
2
O
2
BO
3
晶体能够稳定存在
并利用Le Bail模型计算得到其晶胞参数。荧光光谱证实:Eu
3+
离子在LiLa
2
O
2
BO
3
晶体中占据非反演对称中心格位
该系列荧光粉在紫外(396 nm)和蓝光(466 nm)激发下均表现为613 nm和623 nm的较强发射
是一种可广泛适用于蓝光和近紫外光LED的红色荧光粉。进一步的研究发现:引入适量Si
4+
取代部分基质B
3+
可有效的提高荧光粉的相对发光强度
使其色坐标更接近NTSC标准(
x=0.670
y=0.330)。
Abstract
A series of novel red phosphors LiLa
2
O
2
BO
3
∶ Eu
3+
were synthesized by conventional solid state reaction method using H
3
BO
3
(99.5%)
La
2
O
3
(99.99%)
Eu
2
O
3
(99.99%) and Li
2
CO
3
(97.0%) with different Eu
3+
concentrations. The crystal structure and spectral features of the phosphors were characterized by XRD
excitation and emission spectra
respectively. The XRD pattern result indicates that the LiLa
2
O
2
BO
3
crystals are stably existed.The lattice parameters were calculated by the Le Bail model method. We can also conclude from XRD patterns that unknown phases are formed with higher concentration Eu
3+
doping. The excitation spectrum data demonstrate that these phosphors could be effectively excited by ultraviolet (UV) (396 nm) and blue (466 nm) light
which represent highly future prospects in both ultraviolet and blue light emitting diodes (LED) chips. Due to the
5
D
0
7
F
2
transition of Eu
3+
the phosphors have best emission spectrum performance of 613 nm and 623 nm
illustrating Eu
3+
occupy the non-centrosymmetric lattice site in LiLa
2
O
2
BO
3
phases. The optimal doping concentration of Eu
3+
was 20%. Our further research indicates the luminescent intensity increases significantly by doping optimal concentration of Si
4+
ions. The CIE chromaticity coordinates are much closer to the standard of NTSC(
x=0.670
y
=0.330) by partly replacement of B
3+
by Si
4+
ions.
关键词
Keywords
references
Kim J S, Jeon P E, Choi J C, et al. White-light generation through ultraviolet-emitting diode and white-emitting phosphor [J]. Appl. Phys. Lett., 2004, 85 (17):3696-3698.[2] Sun X Y, Zhang J H, Zhang X, et al. A white light phosphor suitable for near ultraviolet excitation [J]. J. Lumin., 2007, 122-123 :955-957.[3] Ekambaram S, Maaza M. Combustion synthesis and luminescent properties of Eu3+-activated cheap red phosphors [J]. J. Alloy. Compd., 2005, 395 (1-2):132-134.[4] Liu J, Sun J Y, Shi C S. The development of the white converter based on LED [J]. Chem. Online, 2005, 68 (6):417-419.[5] Wang Zh L, Liang H B, Zhou L Y, et al. Luminescence of (Li0.333Na0.334K0.333)Eu(MoO4)2 and its application in near UV InGaN-based light-emitting diode [J]. Chem. Phys. Lett., 2005, 412 (4-6):313-316.[6] Neeraj S, Kijima N, Cheetham A K. Novel red phosphors for solid-state lighting: the system NaM(WO4)2-x-(MoO4)xEu3+(M=Gd,Y,Bi) [J]. Chem. Phys. Lett., 2004, 387 (1-3):2-6.[7] Neeraj S, Kijima N, Cheetham A K. Novel red phosphors for solid state lighting: the system BixLn1-xVO4 ∶ Eu3+ /Sm3+(Ln=Y,Gd) [J]. Solid State Commun., 2004, 131 (1):65-69.[8] Hu Y Sh, Zhuang W D, Ye H Q, et al. A novel red phosphor for white light emitting diodes [J]. J. Alloy. Compd., 2005, 390 (1-2):226-229.[9] Jang H S, Im W B, Lee D Ch, et al. Enhancement of red spectral emission intensity of Y3Al5O12 ∶ Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs [J]. J. Lumin., 2007, 126 (2):371-377.[10] Li Huijuan, Shao Qiyue, Dong Yan, et al. The thermal quenching of YAG ∶ Ce3+ phosphors for white LED application [J]. Chin. J. Lumin.(发光学报), 2008, 29 (6):984-988 (in Chinese).[11] Liu Xingren. Phosphors for white LED solid state lighting [J]. Chin. J. Lumin.(发光学报), 2007, 28 (3):291-301 (in Chinese).[12] Jubera V, Chaminade J P, Garcia A, et al. Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates [J]. J. Lumin., 2003, 101 (1-2):1-10.[13] Wang Linsheng, Wen Xiaoqiang, Zhou Jian, et al. Synthesis and luminescence properties of (La, Ce, Tb)BO3 phosphors [J]. Chin. J. Lumin.(发光学报), 2009, 30 (6): 63-767 (in Chinese).[14] Albinati A, Willis B T M. The rietveld method in neutron and X-ray power diffraction [J]. J. Appl. Cryst., 1982, 15 :361-374.[15] Turcotte R P, Sawyer J O, Eyring L. Rare earth dioxymonocarbonates and their decomposition [J]. Inorg. Chem., 1969, 8 (2):238-246.[16] Christensen A N. Hydrothermal preparation of barium titivates by transport reactions [J]. Acta Chem. Scand., 1970, 24 :2447-2452.[17] Won Y H, Jang H S, Bin I W, et al. Red-emitting LiLa2O2BO3 ∶ Sm3+, Eu3+ phosphor for near-ultraviolet light-emitting diodes-based soiled-state lighting [J]. J. Electrochem. Soc., 2008, 155 (9):226-229.[18] Attfield J P, Ferey G. Structure determinations of La2O2CO3-Li and the unusual disordered phase La2O2.52(CO3)0.74Li0.52 using powder diffraction [J]. J. Solid State Chem., 1989, 82 (1):132-138.[19] Jubera V. Crystal structures and luminescence properties of novel compounds Li2O-B2O3-Ln2O3 (Ln=rare earth) . France: Physical Chemistry of Condensed Matter, 2001.[20] Sun Baojuan, Liu Qinglin, Liang Jingkui, et al. Subsolidus phase relations in the Y2O3-Eu2O3-SnO2 ternary system and their luminescent properties [J]. Acta Phys. Sin.(物理学报), 2007, 56 (12):7147-7151 (in Chinese).[21] Liu HuangQing. Effect of Eu3+ ions concentration on the optical properties TeO2-BaO-Eu2O3 glass [J]. J. Hu'nan. Univ.(湖南大学学报), 2010, 37 (3):66-68 (in Chinese).
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