Homogeneous one-dimensional structured Tb(OH){sub 3}:Eu{sup 3+} nanorods: Hydrothermal synthesis, energy transfer, and tunable luminescence properties
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715 (China)
- State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (China)
Nearly monodisperse, homogeneous and well-defined one-dimensional Tb{sub (1-x)}(OH){sub 3}:xEu{sup 3+} (x=0-3 mol%) nanorods have been prepared through hydrothermal method. The size of the Tb(OH){sub 3}:Eu{sup 3+} rods could be modulated from nano- to micro-scale by using different amount of ammonia solution. They present highly crystallinity in spite of the moderate reaction temperature. Under ultraviolet excitation into the f->f transition of Tb{sup 3+} at 382 nm, Tb(OH){sub 3} samples show the characteristic emission of Tb{sup 3+} corresponding to {sup 5}D{sub 4}->{sup 7}F{sub 6,5,4,3} transitions; whereas Tb(OH){sub 3}:Eu{sup 3+} samples mainly exhibit the characteristic emission of Eu{sup 3+} corresponding to {sup 5}D{sub 0}->{sup 7}F{sub 1,2,4} transitions due to an efficient energy transfer occurs from Tb{sup 3+} to Eu{sup 3+}. The increase of Eu{sup 3+} concentration leads to the increase of the energy transfer efficiency from Tb{sup 3+} to Eu{sup 3+}. The PL colors of Tb(OH){sub 3}:xEu{sup 3+} phosphors can be easily tuned from green, yellow, orange, to red by changing the doping concentration (x) of Eu{sup 3+}. - Graphical abstract: The colors of Tb(OH){sub 3}:xEu{sup 3+} phosphors can be easily tuned from green, yellow, orange, to red due to different energy transfer occurs from Tb{sup 3+} to Eu{sup 3+}.
- OSTI ID:
- 21372504
- Journal Information:
- Journal of Solid State Chemistry, Vol. 183, Issue 2; Other Information: DOI: 10.1016/j.jssc.2009.12.005; PII: S0022-4596(09)00568-4; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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