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Title of Journal: Rare Metals

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Abbravation: Rare Metals

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Nonferrous Metals Society of China

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DOI

10.1007/bfb0107797

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1867-7185

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Synthesis and luminescent properties of LnSupersc

Authors: Qiuhong Zhang Jing Wang Haiyong Ni Lingli Wang
Publish Date: 2012/01/26
Volume: 31, Issue: 1, Pages: 35-38
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Abstract

The new phosphors Bi2ZnB2O7 Ln3+ Ln3+ = Eu3+ Dy3+ were synthesized by solidstate reaction technique The obtained phosphors were investigated by means of Xray powder diffraction XRD photoluminescence excitation and emission spectra with the aim of enhancing the fundamental knowledge about the luminescent properties of Eu3+ and Dy3+ ions in the Bi2ZnB2O7 host lattice XRD analysis shows that all these compounds are of a single phase of Bi2ZnB2O7 The excitation and emission spectra of Bi2ZnB2O7 Ln3+ Ln3+ = Eu3+ Dy3+ at room temperature show the typical 4f4f transitions of Eu3+ and Dy3+ respectively The hypersensitive transitions of 5D0→7F2 Eu3+ and 4F9/2→6H13/2 Dy3+ are relatively higher than those of the insensitive transitions in Bi2ZnB2O7 It is conceivable that the Bi2ZnB2O7 structure provides asymmetry sites for activators Eu3+ Dy3+ The optimum concentrations of Eu3+ and Dy3+ ions in Bi2ZnB2O7 phosphors are both x = 005

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  2. Microstructure and superconducting properties of (BaTiO 3 , Y 2 O 3 )-doped YBCO films under different firing temperatures
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  5. Magnetocaloric effect of (Gd 1− x Ce x )Co 2 compounds in low magnetic fields
  6. Relation between microstructure and magnetic properties of shock wave-compressed Nd–Fe–B magnets
  7. Adsorption behavior of Pd(II) from aqueous solutions by D201 resin
  8. Formation mechanism and prediction of new phases in binary metallic liquid/solid interface
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  12. Decomposition process of zircon sand concentrate with CaO-NaOH
  13. Low-temperature synthesis of SiC nanowires with Ni catalyst
  14. Influence of Sb 2 O 3 doping on the properties of KBT-NBT-BT lead-free piezoelectric ceramics
  15. Synthesis and characterization of amorphous Al–Mg–B prepared by various deposition temperatures
  16. High temperature creep behavior and mechanism of a TiAl-based intermetallic
  17. Deformation efficiency, homogeneity, and electrical resistivity of pure copper processed by constrained groove pressing
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