Abstract
YTaO4:RE3+ (RE = Eu or Dy) phosphor powders with different concentrations of activator ions were prepared using the solid-state reaction method. The effects of the concentration of activator ions on the structural, morphological, and photoluminescent properties of the yttrium tantalate phosphors were investigated. The XRD patterns demonstrated that the synthesized phosphors had two mixed phases of YTaO4 and YTa7O19. The size and shape of the crystalline particles were estimated using scanning electron microscopy, and the particles showed a tendency to agglomerate. The emission spectra of the Eu3+-doped YTaO4 phosphors under excitation at 398 nm were composed of an intense red band at 615 nm and three weak bands centered at 596, 653, and 709 nm, respectively, indicating that most Eu3+ ions in the YTaO4 host lattice occupied sites without inversion symmetry. The intensities of all the emission bands reached maxima for the sample doped with 10 mol% of Eu3+ ions. For the Dy3+-doped YTaO4 phosphors, two major emission bands, one at 484 nm and the other at 580 nm, were observed. The results suggest that intense emission and color tunability can be achieved for the phosphors by doping the host lattice with the appropriate amount and type of rare-earth element.
Similar content being viewed by others
References
C. Shivakumara and R. Saraf, Opt. Mater. 42, 178 (2015).
S. Li and A. Waag, J. Appl. Phys. 111, 071101 (2012).
A. Khanna and P. S. Dutta, Opt. Mater. 37, 646 (2014).
A. K. Parchur and R. S. Ningthoujam, RSC Adv. 2, 10859 (2012).
S. Li, X. Wei, K. Deng, X. Tian, Y. Qin, Y. Chen and M. Yin, Curr. Appl. Phys. 13, 1288 (2013).
Z.W. Zhang, L. Liu, S.T. Song, J. P. Zhang and D. J. Wang, Curr. Appl. Phys. 15, 248 (2015).
P. Jena, S. K. Gupta, V. Natarajan, M. Sahu, N. Satyanarayana and M. Venkateswarlu, J. Lumin. 158, 203 (2015).
H. Lai, A. Bao, Y. Yang, W. Xu, Y. Tao and H. Yang, J. Lumin. 128, 521 (2008).
M. H. Hwang and Y. J. Kim, Ceram.Int. 34, 1117 (2008).
J. Zhang, Y. Fan, Z. Chen, J. Wang, P. Zhao and B. Hao, J. Rare Earth. 33, 1036 (2015).
W. T. Hong, J. H. Lee, H. I. Jang, H. K. Yang, J. H. Jeong and B. K. Moon, J. Korean Phys. Soc. 66, 1895 (2015).
J. Kuang, Y. Liu and J. Zhang, J. Solid State Chem. 179, 266 (2006).
Y. Fang, W. Zhuang, Y. Hu, X. Ye and X. Huang, J. Alloy. Compd. 455, 420 (2008).
L. Li, W. Zi, G. Li, S. Lan, G. Ji, S. Gan, H. Zou and X. Xu, J. Solid State Chem. 191, 175 (2012).
L. Y. Zhou, J. S. Wei, F. Z. Gong, J. L. Huang and L. H. Yi, J. Solid State Chem. 181, 1337 (2008).
A. K. Ambast, A. K. Kunti, S. Som and S. K. Sharma, Appl. Optics 52, 8424 (2013).
B. Yan and X. Xiao, Nanoscale Res. Lett. 5, 1962 (2010).
Y. Parganiha, J. Kaur, V. Dubey and D. Chandrakar, Superlattice. Microst. 77, 152 (2015).
P. Babu, K. H. Jang, Ch. S. Rao, L. Shi, C. K. Jayasankar, V. Lavin and H. J. Seo, Opt. Express 19, 1836 (2011).
W. Sun, Y. Jia, T. Ma, D. Li, H. Li, L. Jiang, S. Zhang, J. Fu, R. Pang and C. Li, Chemistry Select 3, 462 (2016).
G. Blasse, Philips Res. Rep. 24, 131 (1969).
D. L. Dexter, J. Chem. Phys. 21, 836 (1953).
Acknowledgments
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2017R1D1A3B03034497). The author acknowledges the Korea Basic Science Institute, Daegu branch, for utilizing its SEM facility
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Cho, S. Synthesis and Luminescence Properties of YTaO4:RE3+ (RE = Eu, Dy) Phosphors. J. Korean Phys. Soc. 74, 707–712 (2019). https://doi.org/10.3938/jkps.74.707
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.74.707