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Issue 12, 2017
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The size effect on the energy transfer in Bi3+–Eu3+ co-doped GdVO4 nanocrystals

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Abstract

Nanocrystals of GdVO4 co-doped with various concentrations of Bi3+ and a constant concentration of Eu3+ ions (5 mol%) were synthesized by Pechini's method and annealed in the range of temperature from 750 °C to 900 °C in order to obtain different sizes of individual crystallites. Upon the excitation of near-UV light, an intense red/orange-red luminescence of Eu3+ was observed. Shifting of the maximum and broadening of the excitation band with increasing Bi3+ concentration were also observed. In particular, the influence of the size effect on the energy transfer in the chain: (O2−–V5+) charge transfer → (Bi3+–V5+) charge transfer → Eu3+ ions was determined and analysed.

Graphical abstract: The size effect on the energy transfer in Bi3+–Eu3+ co-doped GdVO4 nanocrystals

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Publication details

The article was received on 27 Oct 2016, accepted on 25 Feb 2017 and first published on 27 Feb 2017


Article type: Paper
DOI: 10.1039/C6TC04660F
Citation: J. Mater. Chem. C, 2017,5, 3014-3023
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    The size effect on the energy transfer in Bi3+–Eu3+ co-doped GdVO4 nanocrystals

    K. Lenczewska, Y. Gerasymchuk, N. Vu, N. Q. Liem, G. Boulon and D. Hreniak, J. Mater. Chem. C, 2017, 5, 3014
    DOI: 10.1039/C6TC04660F

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