Hydrothermal Synthesis and Characterization of YVO₄ and YVO₄:Eu³⁺ Nanobelts and Polyhedral Micron Crystals

Abstract

YVO4 and YVO4:Eu3+ nanobelts and polyhedral micrometer crystals have been successfully synthesized by hydrothermal treating the mixture of NH4VO3 and Y(NO3)3 without the aid of any surfactants and templates. The thickness, widths, and lengths of YVO4 nanobelts are about 40−60 nm, 110−180 nm, and several micrometers, respectively. Such nanobelts can grow along the [010] direction. YVO4 polyhedral micrometer crystals have flat faces and regular shapes. The influences of pH values on the morphologies of YVO4 have been investigated. The photoluminescence properties of YVO4:Eu3+ nanobelts and polyhedron microcrystals have been discussed.

Energy transfer process and optimum emission studies in luminescence of core–shell nanoparticles: YVO4:Eu–YVO4 and surface state analysis

“…Tm 3+ doped AVO 4 shows blue emitter [3]. Sm 3+ doped AVO 4 gives the orange emitter [5,[10][11][12][13][14]. YVO 4 belongs to the category of AVO 4 compounds and partial substitution of Y 3+ by Gd 3+ is known to improve the luminescence intensity of YVO 4 :Eu 3+ sample [6].…”

Self‐Assembled Heavy Lanthanide Orthovanadate Architecture with Controlled Dimensionality and Morphology

“…[17] Recently, polyhedral YVO 4 nanocrystals also have been prepared by the wet chemical synthesis process. [18] Nevertheless, to the best our knowledge, the synthesis of monodisperse YVO 4 complex architectures with uniform size and morphology has seldom been reported. On the other hand, the shape, crystalline structure and size of YVO 4 are important elements in determining its physical and chemical properties.…”

Facile synthesis and luminescence properties of octahedral YVO4:Eu3+ microcrystals

“…For example, the large single crystals of lanthanide orthovanadates, such as YVO 4 , YbVO 4 , and LuVO 4 , have been widely used in polarizer and laser host materials [8][9][10]. Among the various lanthanide orthovanadates, yttrium orthovanadate (YVO 4 ) possesses high luminescent efficiency, and has been widely applied as an eminent candidate for the matrix in light phosphor powders, plasma display panels, advanced flat panel displays, and field emission display devices [11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

“…with uniform octahedral morphology have been reported [30][31][32][33][34][35]. However, to our knowledge, there have been few reports on the synthesis of lanthanide orthovanadate nano/microcrystals with octahedral shape [36]. Recently, a number of synthesis techniques have been developed to synthesize microcrystals and nanocrystals with uniform morphology.…”