Issue 14, 2014

Facile template free synthesis of KLa(MoO4)2:Eu3+,Tb3+ microspheres and their multicolor tunable luminescence

Abstract

Trivalent rare-earth (RE3+ = Eu3+, Tb3+) ion activated KLa(MoO4)2 microspheres have been synthesized at 180 °C via a facile hydrothermal route without using any templates, surfactant, or other organic additives. X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), photoluminescence (PL), and photoluminescent excitation spectra (PLE) were employed to characterize the samples. It is found that the pH value in the initial solution is responsible for crystal phase, shape determination and emission intensity of final products. The possible formation mechanism for products with uniform spheres has been presented. Furthermore, a systematic study on the photoluminescence of RE3+ (RE3+ = Eu3+, Tb3+) doped KLa(MoO4)2 samples has been explored in order to obtain the multicolor tunable emission by varying the Tb3+/Eu3+ ratio. The tunable luminescence may be potentially applied in fields such as solid state lighting and field emission displays.

Graphical abstract: Facile template free synthesis of KLa(MoO4)2:Eu3+,Tb3+ microspheres and their multicolor tunable luminescence

Article information

Article type
Paper
Submitted
07 Nov 2013
Accepted
02 Jan 2014
First published
06 Jan 2014

Dalton Trans., 2014,43, 5382-5392

Facile template free synthesis of KLa(MoO4)2:Eu3+,Tb3+ microspheres and their multicolor tunable luminescence

L. Hou, S. Cui, Z. Fu, Z. Wu, X. Fu and J. H. Jeong, Dalton Trans., 2014, 43, 5382 DOI: 10.1039/C3DT53151A

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