Copyright (c) 2013 AJC
This work is licensed under a Creative Commons Attribution 4.0 International License.
Preparation and Upconversion Photoluminescence of Er3+/Yb3+ Co-Doped CaWO4 Particles via Microwave-Assisted Metathetic Route
Corresponding Author(s) : Chang Sung Lim
Asian Journal of Chemistry,
Vol. 25 No. 11 (2013): Vol 25 Issue 11
Abstract
Upconversion photoluminescence of Er3+ doped CaWO4 (CaWO4:Er3+) and Er3+/Yb3+ co-doped CaWO4 (CaWO4:Er3+/Yb3+) particles was successfully achieved by a cyclic microwave-assisted metathetic route. Well-crystallized CaWO4:Er3+ and CaWO4:Er3+/Yb3+ particles formed after heat-treatment at 600 ºC for 3 h showed a fine and homogeneous morphology with particle sizes of 1-3 μm. At excitation at 980 nm, CaWO4:Er3+ and CaWO4:Er3+/Yb3+ particles exhibited a strong 525-nm emission band and a weak 550-nm emission band in the green region. The upconversion intensity of CaWO4:Er3+/Yb3+ particles was much higher than that of the CaWO4:Er3+ particles. The Raman spectra of the CaWO4:Er3+/Yb3+ particles indicated the detection of additional peaks at higher frequencies (620, 573, 481, 371 and 355 cm-1) and lower frequencies (315, 265, 217 and 203 cm-1).
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- M.Wang, G. Abbineni, A. Clevenger, C. Mao and S. Xu, Nanomed.: Nanotechnol. Biol. Med., 7, 710 (2011).
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- J. Sun, J. Xian and H. Du, J. Phys. Chem. Solids, 72, 207 (2011).
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References
M.Wang, G. Abbineni, A. Clevenger, C. Mao and S. Xu, Nanomed.: Nanotechnol. Biol. Med., 7, 710 (2011).
H. Xu, L. Cheng, C. Wang, X. Ma, Y. Li and Z. Liu, Biomaterials, 32, 9364 (2011).
A.P.A. Marques, F.V. Matta, M.A. Cruz, J.A. Varela, E. Longo and I.L.V. Rosa, Solid State Ionics, 202, 54 (2011).
P. Parhi, T.N. Karthik and V. Manivannan, J. Alloys Comp., 465, 380 (2008).
T. Thongtem, A. Phuruangrat and S. Thongtem, Appl. Surf. Sci., 254, 7581 (2008).
J.H. Ryu, C.S. Lim, J.W. Yoon and K.B. Shim, Appl. Phys. A, 88, 731 (2007).
J. Sun, J. Xian and H. Du, J. Phys. Chem. Solids, 72, 207 (2011).
J. Sun, J. Xian, Z. Xia and H. Du, J. Rare Earths, 28, 219 (2010).
V.K. Komarala, Y. Wang and M. Xiao, Chem. Phys. Lett., 490, 189 (2010).
S.B. Kim, B.G. Kum, H.M. Jang, A. Lakshmanan and B.K. Kang, J. Lumin., 131, 1625 (2011).
H. Wu, Y. Hu, F. Kang, L. Chen, X. Wang, G. Ju and Z. Mu, Mater. Res. Bull., 46, 2489 (2011).
D.W. Kim, I.S. Cho, S.S. Shin, S.W. Lee, T.H. Noh, D.H. Kim, H.S. Jung and K.S. Hong, J. Solid State Chem., 184, 2103 (2011).
G.H. Lee and S. Kang, J. Lumin., 131, 2606 (2011).
Y. Guo, M. Sun, W. Guo, F. Ren and D. Chen, Optics Laser Technol., 42, 1328 (2010).
Z. Shan, Y. Wang, H. Ding and F. Huang, J. Mol. Catal. A, 302, 54 (2009).
F.B. Cao, L.S. Li, Y.W. Tian, Y.J. Chen and X.R. Wu, Thin Solid Films, 519, 7971 (2011).
Q. Xiao, Qitao and M. Li, J. Lumin., 130, 1092 (2010).
J. Liao, B. Qiu, H. Wen, J. Chen, W. You and L. Liu, J. Alloys Comp., 487, 758 (2009).
Y. Zheng, Y. Huang, M. Yang, N. Guo, H. Qiao, Y. Jia and H. You, J. Lumin., 132, 362 (2012).
M. Sadegh, A. Badiei, A. Abbasi, H. Goldooz and G.M. Ziarani, J. Lumin., 13, 2072 (2010).
W. Wang, P. Yang, S. Gai, N. Niu, F. He and J. Lin, J. Nanopart. Res., 12, 2295 (2010).
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Y. Tian, Y. Liu, R. Hua, L. Na and B. Chen, Mater. Res. Bull., 47, 59 (2012).
C.S. Lim, Mater. Chem. Phys., 131, 714 (2012).
A. Shalav, B.S. Richards and M.A. Green, Solar Ener. Mater. Solar Cells, 91, 829 (2007).
P. Yu, J. Bi, D.Q. Xiao, L.P. Chen, X.L. Jin and Z.N. Yang, J. Electroceram., 16, 473 (2006).