Issue

Vol. 26 No. 24 (2014)

Copyright (c) 2014 Chang Sung Lim

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Upconversion Properties of CaGd2(MoO4)4:Er3+/Yb3+ Green Phosphors Synthesized by A Cyclic Microwave-Modified Sol-Gel Method

https://doi.org/10.14233/ajchem.2014.17404
Chang Sung Lim
Department of Advanced Materials Science and Engineering, Hanseo University, Seosan 356-706, Republic of Korea Corresponding author: Tel./Fax: +82 41 6601445; E-mail: cslim@hanseo.ac.kr

Corresponding Author(s) : Chang Sung Lim

Asian Journal of Chemistry, Vol. 26 No. 24 (2014)

Abstract

Upconversion CaGd2(MoO4)4:Er3+/Yb3+ phosphors with doping concentrations of Er3+ and Yb3+ (Er3+ = 0.05, 0.1, 0.2 and Yb3+ = 0.2, 0.45) have been successfully synthesized by a cyclic microwave-modified sol-gel method. Well-crystallized particles, formed after heat-treatment at 900 °C for 12 h, showed a fine and homogeneous morphology. Under excitation at 980 nm, CaGd2(MoO4)4:Er3+/Yb3+ particles exhibited strong 525 and 550 nm emission bands in the green region and a weak 655 nm emission band in the red region. The Raman spectra of the particles indicated the presence of strong peaks at both higher frequencies and 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 Green phosphors Sol-gel Raman spectroscopy.
Sung Lim, C. (2014). Upconversion Properties of CaGd2(MoO4)4:Er3+/Yb3+ Green Phosphors Synthesized by A Cyclic Microwave-Modified Sol-Gel Method. Asian Journal of Chemistry, 26(24), 8353–8357. https://doi.org/10.14233/ajchem.2014.17404
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. M. Wang, G. Abbineni, A. Clevenger, C. Mao and S. Xu, Nanomedicine, 7, 710 (2011).
  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).
  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).
  4. J. Liao, D. Zhou, B. Yang, R. Liu, Q. Zhang and Q. Zhou, J. Lumin., 134, 533 (2013).
  5. J. Sun, Y. Lan, Z. Xia and H. Du, Opt. Mater., 33, 576 (2011).
  6. C. Guo, H.K. Yang and J.H. Jeong, J. Lumin., 130, 1390 (2010).
  7. J. Sun, J. Xian and H. Du, J. Phys. Chem. Solids, 72, 207 (2011).
  8. V.K. Komarala, Y. Wang and M. Xiao, Chem. Phys. Lett., 490, 189 (2010).
  9. J. Sun, J. Xian, Z. Xia and H. Du, J. Rare Earths, 28, 219 (2010).
  10. H. Du, Y. Lan, Z. Xia and J. Sun, Mater. Res. Bull., 44, 1660 (2009).
  11. L.X. Pang, H. Liu, D. Zhou, G.B. Sun, W.B. Qin and W.G. Liu, Mater. Lett., 72, 128 (2012).
  12. M. Haque and D.K. Kim, Mater. Lett., 63, 793 (2009).
  13. C. Zhao, X. Yin, F. Huang and Y. Hang, J. Solid State Chem., 184, 3190 (2011).
  14. L. Qin, Y. Huang, T. Tsuboi and H.J. Seo, Mater. Res. Bull., 47, 4498 (2012).
  15. Y. Yang, E. Liu, L. Li, Z. Huang, H. Shen and X. Xiang, J. Alloys Comp., 505, 555 (2010).
  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 Comp., 509, 6096 (2011).
  17. Y. Huang, L. Zhou, L. Yang and Z. Tang, Opt. Mater., 33, 777 (2011).
  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).
  19. Z. Wang, H. Liang, L. Zhou, J. Wang, M. Gong and Q. Su, J. Lumin., 128, 147 (2008).
  20. Q. Chen, L. Qin, Z. Feng, R. Ge, X. Zhao and H. Xu, J. Rare Earths, 29, 843 (2011).
  21. X. Shen, L. Li, F. He, X. Meng and F. Song, Mater. Chem. Phys., 132, 471 (2012).
  22. J. Zhang, X. Wang, X. Zhang, X. Zhao, X. Liu and L. Peng, Inorg. Chem. Commun., 14, 1723 (2011).
  23. C.S. Lim, Mater. Chem. Phys., 131, 714 (2012).
  24. C.S. Lim, J. Lumin., 132, 1774 (2012).
  25. J.C. Sczancoski, L.S. Cavalcante, M.R. Joya, J.A. Varela, P.S. Pizani and E. Longo, Chem. Eng. J., 140, 632 (2008).
  26. T. Thongtem, S. Kungwankunakorn, B. Kuntalue, A. Phuruangrat and S. Thongtem, J. Alloys Comp., 506, 475 (2010).
  27. C.S. Lim, Mater. Res. Bull., 48, 3805 (2013).
  28. 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).
  29. J. Sun, J. Xian, X. Zhang and H. Du, J. Rare Earths, 29, 32 (2011).
  30. Sun, X. Chen, Z. Liu, F. Wang, Z. Jiang and C. Wang, J. Alloys Comp., 509, 5336 (2011).
Read More
Author biographies is not available.
Download
Statistic
Read Counter : 0