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Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

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Upconversion Properties of La2(MoO4)3:Er3+/Yb3+ Green Phosphors Synthesized by Cyclic Microwave-Modified Sol-Gel Method

https://doi.org/10.14233/ajchem.2015.18427
Chang Sung Lim
Department of Advanced Materials Science and Engineering, Hanseo University, Seosan 356-706, Republic of Korea

Corresponding Author(s) : Chang Sung Lim

cslim@hanseo.ac.kr

Asian Journal of Chemistry, Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

Abstract

Upconversion La2-x(MoO4)3:Eu3+/Yb3+ phosphors with doping concentrations of Er3+ and Yb3+ (x = Er3+ + Yb3+, Er3+ = 0.05, 0.1, 0.2 and Yb3+ = 0.2, 0.45) were successfully synthesized by the cyclic microwave-assisted sol-gel process and the upconversion photoluminescence properties have been investigated. Well-crystallized particles, formed after heat-treatment at 900 °C for 16 h, showed a fine and homogeneous morphology with particle sizes of 1-5 μm. Under excitation at 980 nm, La1.7(MoO4)3:Er0.1Yb0.2 and La1.5(MoO4)3:Er0.05Yb0.45 particles exhibited a strong 525 nm emission band, a weak 550 nm emission band in the green region and a very weak 655 nm emission band in the red region. The Raman spectra of the particles indicated the presence of weak peaks at lower frequencies induced by the disorder of the [MoO4]2- groups with the incorporation of the Er3+ and Yb3+ elements into the crystal lattice or by a new phase formation.

Keywords

Upconversion luminescence Microwave-modified sol-gel Raman spectroscopy
Sung Lim, C. (2015). Upconversion Properties of La2(MoO4)3:Er3+/Yb3+ Green Phosphors Synthesized by Cyclic Microwave-Modified Sol-Gel Method. Asian Journal of Chemistry, 27(7), 2593–2597. https://doi.org/10.14233/ajchem.2015.18427
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References
  1. M. Wang, G. Abbineni, A. Clevenger, C. Mao and S. Xu, Nanomedicine, 7, 710 (2011); doi:10.1016/j.nano.2011.02.013.
  2. Y.J. Chen, H.M. Zhu, Y.F. Lin, X.H. Gong, Z.D. Luo and Y.D. Huang, Opt. Mater., 35, 1422 (2013); doi:10.1016/j.optmat.2013.02.012.
  3. M. Lin, Y. Zhao, S.Q. Wang, M. Liu, Z.F. Duan, Y.M. Chen, F. Li, F. Xu and T.J. Lu, Bio. Adv, 30, 1551 (2012); doi:10.1016/j.biotechadv.2012.04.009.
  4. J. Liao, D. Zhou, B. Yang, R. Liu, Q. Zhang and Q. Zhou, J. Lumin., 134, 533 (2013); doi:10.1016/j.jlumin.2012.07.033.
  5. J. Sun, J. Xian and H. Du, J. Phys. Chem. Solids, 72, 207 (2011); doi:10.1016/j.jpcs.2010.12.013.
  6. C. Guo, H.K. Yang and J.H. Jeong, J. Lumin., 130, 1390 (2010); doi:10.1016/j.jlumin.2010.02.052.
  7. T. Li, C. Guo, Y. Wu, L. Li and J.H. Jeong, J. Alloys Comp., 540, 107 (2012); doi:10.1016/j.jallcom.2012.04.052.
  8. M. Nazarov and D.Y. Noh, J. Rare Earths, 28, 1 (2010); doi:10.1016/S1002-0721(10)60390-0.
  9. J. Sun, W. Zhang, W. Zhang and H. Du, Mater. Res. Bull., 47, 786 (2012); doi:10.1016/j.materresbull.2011.12.005.
  10. H. Du, Y. Lan, Z. Xia and J. Sun, Mater. Res. Bull., 44, 1660 (2009); doi:10.1016/j.materresbull.2009.04.009.
  12. M. Haque and D.K. Kim, Mater. Lett., 63, 793 (2009); doi:10.1016/j.matlet.2009.01.018.
  13. C. Zhao, X. Yin, F. Huang and Y. Hang, J. Solid State Chem., 184, 3190 (2011); doi:10.1016/j.jssc.2011.09.025.
  14. L. Qin, Y. Huang, T. Tsuboi and H.J. Seo, Mater. Res. Bull., 47, 4498 (2012); doi:10.1016/j.materresbull.2012.10.004.
  15. Y. Yang, E. Liu, L. Li, Z. Huang, H. Shen and X. Xiang, J. Alloys Compd., 505, 555 (2010); doi:10.1016/j.jallcom.2010.06.072.
  16. Y. Tian, B. Chen, B. Tian, R. Hua, J. Sun, L. Cheng, H. Zhong, X. Li, J. Zhang, Y. Zheng, T. Yu, L. Huang and Q. Meng, J. Alloys Compd., 509, 6096 (2011); doi:10.1016/j.jallcom.2011.03.034.
  17. Y. Huang, L. Zhou, L. Yang and Z. Tang, Opt. Mater., 33, 777 (2011); doi:10.1016/j.optmat.2010.12.015.
  18. Y. Tian, B. Chen, B. Tian, J. Sun, X. Li, J. Zhang, L. Cheng, H. Zhong, H. Zhong, Q. Meng and R. Hua, Physica B, 407, 2556 (2012); doi:10.1016/j.physb.2012.03.066.
  19. Z. Wang, H. Liang, L. Zhou, J. Wang, M. Gong and Q. Su, J. Lumin., 128, 147 (2008); doi:10.1016/j.jlumin.2007.07.001.
  20. Q. Chen, L. Qin, Z. Feng, R. Ge, X. Zhao and H. Xu, J. Rare Earths, 29, 843 (2011); doi:10.1016/S1002-0721(10)60553-4.
  21. X. Shen, L. Li, F. He, X. Meng and F. Song, Mater. Chem. Phys., 132, 471 (2012); doi:10.1016/j.matchemphys.2011.11.055.
  22. J. Zhang, X. Wang, X. Zhang, X. Zhao, X. Liu and L. Peng, Inorg. Chem. Commun., 14, 1723 (2011); doi:10.1016/j.inoche.2011.07.015.
  23. S. Das, A.K. Mukhopadhyay, S. Datta and D. Basu, Bull. Mater. Sci., 32, 1 (2009); doi:10.1007/s12034-009-0001-4.
  24. Y. Keereeta, T. Thongtem and S. Thongtem, Curr. Appl. Phys., 12, S139 (2012); doi:10.1016/j.cap.2012.02.045.
  25. C.S. Lim, Mater. Res. Bull., 47, 4220 (2012); doi:10.1016/j.materresbull.2012.09.029.
  26. W. Lu, L. Cheng, J. Sun, H. Zhong, X. Li, Y. Tian, J. Wan, Y. Zheng, L. Huang, T. Yu, H. Yu and B. Chen, Physica B, 405, 3284 (2010); doi:10.1016/j.physb.2010.04.061.
  27. J. Sun, J. Xian, X. Zhang and H. Du, J. Rare Earths, 29, 32 (2011); doi:10.1016/S1002-0721(10)60396-1.
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