Investigation on the Preparation and Properties of Monodispersed Spherical Y₂O₃:Dy³⁺ Phosphor

Abstract:

The oxide phosphor (Y_1-xDy_x)₂O₃(x=0-0.1) was obtained by calcining their respective precursors synthesized by homogeneous precipitation technique using rare earth nitrate as mother salt and urea as precipitating agent. The particle shape/size, fluorescent properties (especially the influence of Dy³⁺ concentration and calcination temperature) of the product was studied in detail. The results showed that the precursors exhibit monodisperse spherical morphology whose size can be controlled by adjusting the urea content. The phase pure (Y_1-xDy_x)₂O₃ can be obtained by calcining precursor at least 600 °C, and the monodisperse spherical morphology can be kept at even high temperature of 1000 °C. The (Y_1-xDy_x)₂O₃ phosphors exhibit strong yellow emission at ~577 nm (⁴F_9/2→⁶H_13/2 transition of Dy³⁺) and blue emission at ~491 nm (⁴F_9/2→⁶H_15/2 transition of Dy³⁺) upon optimal excitation wavelength of ~352 nm. The quenching concentration of Dy³⁺ was determined to be ~2 at% (x=0.02). The emission intensity of (Y_1-xDy_x)₂O₃ phosphors can be improved with the temperature and particle size increasing

• Periodical: Key Engineering Materials (Volume 726)
• Pages: 255-260
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.726.255
• Online since: January 2017
• Authors: Jin Kai Li*, Zhong Peng Liu, Jiang Fan Luo, Xin Bo Ma, Xin Teng, Zong Ming Liu
• Keywords: Homogeneous Precipitation, Luminescent Property, Monodisperse Spheres, Y₂O₃:Dy³⁺

References

[1] S.V. Zaitsev, Y.V. Yermoolayeva, A.N. Gruzintsev, Geometry effect on spontaneous emission decay in nanosized Y2O3-Eu3+ particles, Opt. Mater. 37 (2014) 714-717.

DOI: 10.1016/j.optmat.2014.08.018

[2] R.E. Muenchausen, L.G. Jacobshon, B.L. Bennett, Effects of Tb doping on the photoluminescence of Y2O3: Tb nanophosphors, J. Lumin. 126 (2007) 838-842.

DOI: 10.1016/j.jlumin.2006.12.004

[3] S.T. Mukherjeea, V. Sudarsan, P.U. Sastry, Annealing effects on the microstructure of combustion synthesized Eu3+ and Tb3+ doped Y2O3 nanoparticles, J. Alloys Compd. 519 (2012) 9-14.

DOI: 10.1016/j.jallcom.2011.10.080

[4] Z.J. Wang, P. Wang, J.P. Zhong, Phase transformation and spectroscopic adjustment of Gd2O3: Eu3+ synthesized by hydrothermal method, J. Lumin. 152 (2014) 172-175.

DOI: 10.1016/j.jlumin.2013.11.040

[5] E. Pavitra, Y.J. Su, A facile large-scale synthesis and luminescence properties of Gd2O3: Eu3+ nanoflowers, Mater. Lett. 90 (2013) 134-137.

DOI: 10.1016/j.matlet.2012.09.022

[6] A. Gupta, N. Brahme, D.P. Bisen, Electroluminescence and photoluminescence of rare earth (Eu, Tb) doped Y2O3 nanophosphor, J. Lumin. 155 (2014) 112-118.

DOI: 10.1016/j.jlumin.2014.06.003

[7] S. Mukherjee, V. Sudarsan, P.U. Sastry, Morphology and luminescence characteristics of combustion synthesized Y2O3: (Eu, Dy, Tb) nanoparticles with various amino-acid fuels, J. Lumin. 145 (2014) 318-323.

DOI: 10.1016/j.jlumin.2013.07.058

[8] K. Mishra, S.K. Singh, A.K. Singh, Optical characteristics and charge transfer band excitation of Dy3+ doped Y2O3 phosphor, Mater. Res. Bull. 47 (2012) 1339-1344.

DOI: 10.1016/j.materresbull.2012.03.017

[9] T. Selvalakshmi, S. Sellaiyan, A. Uedonob, Investigation of defect related photoluminescence property of multicolour emitting Gd2O3: Dy3+ phosphor, RSC Adv. 4 (2014) 34257-34266.

DOI: 10.1039/c4ra07094a

[10] L.L. Peng, T. Han, H. Chen, Spectroscopic properties of Gd2O3: Dy3+ nanocrystals. J. Rare Earths 31(3) (2013) 235-240.

DOI: 10.1016/s1002-0721(12)60264-6

[11] S.Y. Chen, J.M. Lin, J.H. Wu, Facile synthesis of Y2O3: Dy3+ nanorods and its application in dye-sensitized solar cells, Appl. Surf. Sci. 293 (2014) 202-206.

DOI: 10.1016/j.apsusc.2013.12.134

[12] J.K. Li, J.G. Li, S.H. Liu, Greatly enhanced Dy3+ emission via efficient energy transfer in gadolinium aluminate garnet (Gd3Al5O12) stabilized with Lu3+, J. Mater. Chem. C 1 (2013) 7614-7622.

DOI: 10.1039/c3tc31413h

[13] J.B. Kumar Prasanna, G. Ramgopal, Y.S. Vidya, Green synthesis of Y2O3: Dy3+ nanophosphor with enhanced photocatalytic activity, Spectrochim. Acta. A 149 (2015) 687-697.

DOI: 10.1016/j.saa.2015.05.007

[14] J.G. Li, X.D. Li, X.D. Sun, Monodispersed colloidal spheres for uniform Y2O3: Eu3+ red-phosphor particles and greatly enhanced luminescence by simultaneous Gd3+ doping, J. Phys. Chem. C 112 (2008) 11707-11716.

DOI: 10.1021/jp802383a

[15] S. Som, S.K. Sharma, S.P. Lochab, Ion induced modification of bandgap and CIE parameters in Y2O3: Dy3+ phosphor, Ceram. Int. 39 (2013) 7693-7701.

DOI: 10.1016/j.ceramint.2013.03.022

[16] R.X. Balderas, R.M. Martinez, Z.A. Rivera, Photo and cathodoluminescence characteristics of dysprosium doped yttrium oxide nanoparticles prepared by Polyol method, J. Lumin. 146 (2014) 497-501.

DOI: 10.1016/j.jlumin.2013.10.041