浏览全部资源
扫码关注微信
1. 中国科学院 长春光学精密机械与物理研究所,吉林 长春,130033
2. 河北师范大学 化学与材料科学学院,河北 石家庄,050024
3. 清华大学 材料科学与工程系, 北京 100084
纸质出版日期:2012-8-10,
收稿日期:2012-5-22,
修回日期:2012-6-12,
扫 描 看 全 文
张丹丹, 石士考, 罗鸣, 刘行仁, 周济. Pr<sup>3+</sup>激活的CaMoO<sub>4</sub>红色荧光粉的发光性质[J]. 发光学报, 2012,33(8): 840-844
ZHANG Dan-dan, SHI Shi-kao, LUO Ming, LIU Xing-ren, ZHOU Ji. Luminescent Properties of Pr<sup>3+</sup>-activated CaMoO<sub>4</sub> Red Phosphors[J]. Chinese Journal of Luminescence, 2012,33(8): 840-844
张丹丹, 石士考, 罗鸣, 刘行仁, 周济. Pr<sup>3+</sup>激活的CaMoO<sub>4</sub>红色荧光粉的发光性质[J]. 发光学报, 2012,33(8): 840-844 DOI: 10.3788/fgxb20123308.0840.
ZHANG Dan-dan, SHI Shi-kao, LUO Ming, LIU Xing-ren, ZHOU Ji. Luminescent Properties of Pr<sup>3+</sup>-activated CaMoO<sub>4</sub> Red Phosphors[J]. Chinese Journal of Luminescence, 2012,33(8): 840-844 DOI: 10.3788/fgxb20123308.0840.
采用高温固相法制备了稀土Pr
3+
激活的Ca
1-
x
Pr
x
MoO
4
(0.005 ≤
x
≤ 0.02) 系列红色荧光粉。荧光光谱表明:在453 nm激发下
样品产生了红光发射
其中对应于Pr
3+
的特征跃迁
3
P
0
→
3
F
2
位于654 nm的红色发射峰最强。分析了Pr
3+
的掺杂摩尔分数
x
对样品发光强度的影响
确定Pr
3+
的最佳掺杂摩尔分数为0.01。为进一步改善样品的发光效率
在样品制备过程中分别采用了两种电荷补偿方式:用1个Pr
3+
和1个
M
+
(
M
=Li
Na)离子取代2个Ca
2+
离子或用2个Pr
3+
离子取代3个Ca
2+
离子。实验结果表明:采用两种电荷补偿方法后
样品的红色发光强度均明显增强
尤其是加入Li
+
后的Ca
0.98
Pr
0.01
Li
0.01
MoO
4
样品的发光强度达到了未补偿样品的3.17倍。
Red-light-emitting phosphors of Pr
3+
activated Ca
1-
x
Pr
x
MoO
4
were synthesized by high temperature solid state reaction. The luminescence spectra of samples indicate that under the excitation of 453 nm
all samples produce red emission peak at 654 nm corresponding to the characteristic transition of Pr
3+
(
3
P
0
→
3
F
2
). The influence of Pr
3+
doping mole fraction (
x
) on the luminescent intensity of samples was analyzed. The optimum doping mole fraction of Pr
3+
was
x
=0.01. In order to further improve the luminescent efficiency
two charge compensation approaches were applied: (1) two Ca
2+
ions were replaced by one Pr
3+
ion and one
M
+
(
M
=Li
Na) ion and (2) three Ca
2+
ions were replaced by two Pr
3+
ions. It is found that both charge compensation approaches can obviously improve the red luminescent intensity. In particular the relative emission intensity of Ca
0.98
Pr
0.01
Li
0.01
MoO
4
reached more than 3.17-fold as compared with that of the sample without the charge compensation.
CaMoO4Pr3+离子发光电荷补偿
Ca2MoO4Pr3+ ionluminescencecharge compensation
Jüstel T, Nikol H, Ronda C. New developments in the field of luminescent materials for lighting and displays [J]. Angew. Chem. Int. Ed., 1998, 37(22):3084-3103.
van Pieterson L, Reid F M, Wegh R T, et al. 4fn→4fn-15d transitions of the light lanthanides: Experiment and theory [J]. Phys. Rev. B, 2002, 65(4):045113-1-16.
Dillo P T, Boutinaud P, Mahiou R, et al. Red luminescence in Pr3+-doped calcium titanates [J]. Phys. Status. solidi (a), 1997, 160(1):255-263.
Blasse G, Grambmaier B C. Luminescent Materials [M]. Berlin: Springer-Verlag, 1994:45.
Krasteva V, Machewirth D, Sigel G H. Pr3+-doped Ge-S-I glasses as candidate materials for 1.3 μm optical fiber amplifiers [J]. J. Non-Cryst. Solids, 1997, 213-214(2-3):304-310.
Simons D R, Faber A J, de Waal H. GeSx glass for Pr3+-doped fiber amplifiers at 1.3 μm [J]. J. Non-Cryst. Solids, 1995, 185(3):283-288.
Mitsuru I. Photoluminescence properties of Pr-doped(Ca, Sr, Ba) TiO3 [J]. Chem. Mater., 2005, 17(12):3200-3204.
Santa C, Nitin K, Harish C. Broad yellow orange emission from SrAl2O4∶Pr3+ phosphor with blue excitation for application to white LEDs [J]. J. Lumin., 2009, 129(2):114-118.
Lian J B, Sun X D, Gao T, et al. Preparation of Gd2O2S∶Pr scintillation ceramics by pressureless reaction sintering method [J]. J. Mater. Sci. Technol., 2009, 25(2):254-258.
Yang X Y, Liu J, Yang H, et al. Synthesis and characterization of new red phosphors for white LED applications [J]. J. Mater. Chem., 2009, 19(22):3771-3774.
Neeraj S, Kijima N, Cheetham A K. Novel red phosphors for solid-state lighting: The system NaM(WO4)2-x(MoO4)x∶Eu3+ (M=Gd,Y,Bi) [J]. Chem. Phys. Lett., 2004, 387(1-3):2-6.
Zhang Y M, Yang F D, Yang J, et al. Synthesis of crystalline SrMoO4 nanowires from polyoxometalates [J]. Chin. J. Inorg. Chem.(无机化学学报), 2005, 133(12):59-63 (in Chinese).
Kato A, Oishi S, Shishido T, et al. Evaluation of stoichiometric rare-earth molybdate and tungstate compounds as laser materials [J]. J. Phys. Chem. Solids, 2005, 66(11):2079-2081.
Ding H Y, Sun J T, Liu W, 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) .
Hu Y S, Zhuang W D, Ye H Q, et al. A novel red phosphor for white light emitting diodes [J]. J. Alloys Compd., 2005, 390(1-2):226-229.
Liu J, Lian H Z, Shi C S. Improved optical photoluminescence by charge compensation in the phosphor system CaMoO4∶Eu3+ [J]. Opt. Mater., 2007, 29(12):1591-1594.
Xi C S, Gao Y Z, Wang P, et al. Synthesis and luminescent properties of LiGd(MoO4)2∶Eu3+ red phosphors for white LEDs [J]. Chin. J. Lumin.(发光学报), 2010, 31(3):311-315 (in Chinese) .
0
浏览量
70
下载量
2
CSCD
关联资源
相关文章
相关作者
相关机构