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Hydrothermal Synthesis and Luminescence Properties of Multiform Lanthanide Ions doped YVO4 Architectures

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Abstract:

YVO4 flowerlike architectures with well-aligned microneedles and urchin-like architectures with nanorods have been synthesized using a facile hydrothermal method in the presence of disodium ethylenediamine tetraacetate (Na2H2L). The morphology of the YVO4 flowerlike architectures can be easily controlled by adjusting the pH value of the reaction system. Proper reaction temperature and the basic source ammonia are key requirements for the fabrication of the flowerlike architectures. The additive Na2H2L can coordinate with metal ions to form strong complexes and be absorbed on specific crystal surfaces of the initial colloidal precipitates, which serve as seeds for the anisotropic growth. The formation mechanism for the YVO4 assemblies has been discussed on the basis of time-dependent experiments. YVO4:Ln3+ (Ln = Eu, Dy and Sm) phosphors preserved the architecture morphologies show strong light emissions with different colors coming from different activated ions under ultraviolet excitation.

Keywords: CRYSTAL MORPHOLOGY; DISODIUM ETHYLENEDIAMINE TETRAACETATE; NANOSTRUCTURES; PHOSPHORS

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.4981

Publication date: 2011-11-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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