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Sol-Gel Synthesis and Luminescence Properties of ZnMoO4:Tb3+ Nano-Structural Materials
Corresponding Author(s) : Jianfu Zhang
Asian Journal of Chemistry,
Vol. 25 No. 7 (2013): Vol 25 Issue 7
Abstract
The ultraviolet excitation molybdates-based green phosphors were synthesized by sol-gel method and characterized by X-ray powder diffraction, photoluminescence spectrum, UV-visible absorption spectrum and scanning electron microscopy. A systematic study about the effects of calcinations temperature on the composition and luminescent properties of the phosphors has also been undertaken. The result of XRD reveals that the ZnMoO4: Tb3+ phosphors have triclinic structure of bulk ZnMoO4. Under the excitation of 275 nm, the emission intensity of the self-activation phosphor MoO42– is weaken greatly, while that of Tb3+ 5D4®7F5 transition at 543 nm (green light) is significantly enhanced. These observed luminescent properties of this phosphor demonstrate it has potential applications as luminescent material in lighting, display, etc.
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- X. Li, Y. Yang, Z.P. Yang, L. Guan and C. Liu, Chinese J. Luminescence, 29, 93 (2008).
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References
X. Li and Z. Zhang, Chinese J. Rare Earth, 12, 69 (2008).
X. Li, Y. Yang, Z.P. Yang, L. Guan and C. Liu, Chinese J. Luminescence, 29, 93 (2008).
C.F. Guo and T. Chen, J. Func. Mater., 38, 200 (2007).
J. Lin, Q. Su, Chinese J. Rare Earth, 2, 42 (1994).
J.B. Yu, X.M. Yuan and J.Z. Chen, Mater. Rev., 15, 30 (2001).
L.D. Zhang and J.M. Mu, Beijing Sci. Technol. Press, 135 (2001).
Y.S. Yang, J.X. Qi and M.S. Zhang, J. Inorg. Mater., 14, 20 (1999).
Y. Liao, W. Zhu, X.M. Li ,Y.Q. Mo, X.G. Hao and X.Q. Ma, Mater. Rev., 21, 321 (2007).
F. Auzel, Chem. Rev., 104, 139 (2004)