FENG Wen-lin, LI Tie, CHEN Zhi, ZHANG Yin, ZENG Cao, YANG Lei. Synthesis and Luminescent Properties of Eu<sup>3+</sup> Doped Ga<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Phosphors[J]. Chinese Journal of Luminescence, 2011,32(11): 1143-1146
FENG Wen-lin, LI Tie, CHEN Zhi, ZHANG Yin, ZENG Cao, YANG Lei. Synthesis and Luminescent Properties of Eu<sup>3+</sup> Doped Ga<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Phosphors[J]. Chinese Journal of Luminescence, 2011,32(11): 1143-1146DOI:
Synthesis and Luminescent Properties of Eu3+ Doped Ga2(MoO4)3 Phosphors
red phosphors are synthesized by using co-precipitation method. X-ray diffraction (XRD)
scanning electron microscopy (SEM) and fluorescence spectrum are used to characterize the structure and luminescent property of the samples. The luminescent properties of Gd
2-
x
Eu
x
(MoO
4
)
3
with various concentration of Eu
3+
are investigated in detail. The results show that three dominant bands locate at 394
465
534 nm. The emission spectra exhibit the most intense emission at 589 nm and 613 nm
especially the later which is corresponding to the
5
D
0
7
F
2
transition of the Eu
3+
. With the increase of the concentration of Eu
3+
the luminescent intensity of the phosphors is gradually increased. When
x
=0.6 (
i.e.
Gd
1.4
Eu
0.6
-(MoO
4
)
3
)
the luminescent intensity of the red phosphor is the strongest.
关键词
Keywords
references
Wang J J, Yin H B, Wang F, et al. Study on properties of Gd2(MoO4)3∶Eu3+ doped with Bi3+ and Y3+ [J]. Mater. Rev. (材料导报), 2008, 22 (z3):124-126 (in Chinese).[2] Zhang W P, Yin M. Preparation and properties of nanometric scale luminescent materials doped by rare earth [J]. Chin. J. Lumin. (发光学报), 2000, 21 (4):314-319 (in Chinese).[3] Zhang G Y, Zhao X X, Meng Q Y, et al. Preparation and properties of red emitting phosphor Gd2Mo3O9∶Eu3+ for white LEDs [J]. Chin. J. Lumin. (发光学报), 2007, 28 (1):57-61 (in Chinese).[4] Lei B F, Sha L, Liu Y L, et al. Synthesis of nano-sized Sr2SiO4∶Eu3+ phosphor by combustion method and its luminescence properties [J]. Chin. J. Lumin. (发光学报), 2011, 32 (6):535-541 (in Chinese).[5] Liu L, Yuan X M, Xie A, 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):686-692 (in Chinese).[6] Yang Y L, Li X M, Feng W L, et al. Synthesis and characteristic of CaMoO4∶Eu3+ red phosphor for W-LED by co-precipitation [J]. J. Inorg. Mater., 2011, 27 (10):276-280 (in Chinese).[7] Yang Y L, Li X M, Feng W L, et al. Effect of surfactants on morphology and luminescent properties of CaMoO4∶Eu3+ red phosphors [J]. J. Alloys Compd., 2011, 509 (3):845-848.[8] Wenst R C. CRC Handbook of Chemistry and Physics [M]. Roca Raton: CRC Press, 1989:F-187.[9] Wang Z L. 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, 46 (4-6):313-316.[10] Zhang G Y, Zhao X X, Meng Q Y, et al. Synthesis and characterization of Eu3+ doped -Gd2(MoO4)3 phosphor [J]. Chin. J. Lumin. (发光学报), 2006, 27 (5):724-728 (in Chinese).