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YVO 4 and YVO 4:Eu 3+ nanobelts and polyhedral micrometer crystals have been successfully synthesized by hydrothermal treating the mixture of NH 4 VO 3 and Y(NO 3 ) 3 without the aid of any surfactants and templates. The thickness, widths, and lengths of YVO 4 nanobelts are about 40−60 nm, 110−180 nm, and several micrometers, respectively. Such nanobelts can grow along the [010] direction. YVO 4 polyhedral micrometer crystals have flat faces and regular shapes. The influences of pH values on the morphologies of YVO 4 have been investigated. The photoluminescence properties of YVO 4:Eu 3+ nanobelts and polyhedron microcrystals have been discussed.
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Li et al. (2008) studied this question.
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