Publication Date:
2011-05-20
Description:
YVO 4 :Bi 3+ ,Eu 3+ nanoparticles were prepared by the wet chemical synthesis in various concentrations of sodium citrate, 15 ≤ x cit ≤ 90, where x cit is the nominal molar percentage of citrate relative to the sum of metallic ions, Y 3+ , Bi 3+ , and Eu 3+ . Mean primary particle size and mean hydrodynamic size in the aqueous colloidal solution have minimum values, 21 and 36 nm, respectively, for the sample prepared at x cit = 50 mol%. The transparency of the aqueous colloidal solution in the visible region increases with decreasing the mean hydrodynamic size, and hence the sample prepared at x cit = 50 mol% shows the highest transparency. YVO 4 :Bi 3+ ,Eu 3+ nanophosphor synthesized by the citrate route shows the photobleaching behavior, i.e., the decrease in photoluminescence intensity under the continuous irradiation of ex...
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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