Submicron Y 2O 3 particles codoped with Eu and Tb ions: Size controlled synthesis and tuning the luminescence emission

Timur Sh Atabaev; Hyung Kook Kim; Yoon Hwae Hwang

doi:10.1016/j.jcis.2011.09.047

Submicron Y ₂O ₃ particles codoped with Eu and Tb ions: Size controlled synthesis and tuning the luminescence emission

Timur Sh Atabaev, Hyung Kook Kim, Yoon Hwae Hwang

Research output: Contribution to journal › Article

36 Citations (Scopus)

Abstract

Eu ³⁺ and Tb ³⁺ codoped Y ₂O ₃ submicron particles were prepared using the simple urea homogeneous precipitation method. X-ray diffraction patterns revealed the synthesized particles to have a pure cubic Y ₂O ₃ structure. Field-emission scanning electron microscopy and field-emission transmission electron microscopy showed that the synthesized particles had almost uniform spherical shapes. The luminescence color emission of the synthesized particles could be tuned from red due to the effective ⁵D ₀→ ⁷F _j (j=0, 1, 2 and 3) transitions within Eu ³⁺ to green due to the ⁵D ₄→ ⁷F ₅ transition within Tb ³⁺ by switching the excitation wavelength from 255 to 310nm. Luminescence quenching was observed at high dopant concentrations. Strong and effective color-tunable emission is expected to find a wide range of applications in industry.

Original language	English
Pages (from-to)	14-19
Number of pages	6
Journal	Journal of Colloid and Interface Science
Volume	373
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2011.09.047
Publication status	Published - May 1 2012
Externally published	Yes

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Keywords

Doping
Luminescence
Urea homogeneous precipitation
Y O particles

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

Cite this

Atabaev, T. S., Kim, H. K., & Hwang, Y. H. (2012). Submicron Y ₂O ₃ particles codoped with Eu and Tb ions: Size controlled synthesis and tuning the luminescence emission. Journal of Colloid and Interface Science, 373(1), 14-19. https://doi.org/10.1016/j.jcis.2011.09.047

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10.1016/j.jcis.2011.09.047