期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 5, 期 12, 页码 3014-3023出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc04660f
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资金
- Wroclaw Research Centre EIT+ within the project The Application of Nanotechnology in Advanced Materials'' - NanoMat [POIG.01.01.02-02-002/08]
- European Regional Development Fund
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 degrees C to 900 degrees 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.
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