Preparation and Luminescent Properties of the La3+ Doped Tb3+-Hydroxyapatite

2014 ◽  
Vol 716-717 ◽  
pp. 32-35
Author(s):  
Wen Bin Liu ◽  
Adu ◽  
Yu Guang Lv ◽  
Li Li Yu ◽  
Yong Xiang Du ◽  
...  
Keyword(s):  
Rare Earth ◽  
Metal Ion ◽  
Chemical Properties ◽  
Earth Metal ◽  
Luminescent Properties ◽  
Central Metal ◽  
X Ray Diffraction ◽  
Light Emitting ◽  
Terbium Ion ◽  
The Stability

In this paper, a rare earth metal terbium ion as the central metal ion, a nanohydroxyapatite powder of the lanthanum doped terbium was synthesis by precipitation with hydroxyapatite as ligand. The sample was characterized by infrared spectrum, fluorescence spectrum and X ray diffraction instrument, and the thermal properties and fluorescence properties, structure of powderes were discussed. A nanohydroxyapatite powder of the lanthanum doped terbium achieves the maximum luminous intensity, when the La3+ doping concentration of Tb3+ was HAP 5% (La3+ and Tb3+ mole fraction ratio) devices. Rare earth powder of the lanthanum doped terbium hydroxyapatite has the stability chemical properties, the luminescence properties and good biological activity, the rare earth powder has good luminescent properties can be used in preparation of a good light emitting device. At the same time a nanohydroxyapatite powder of the lanthanum doped terbium has good antibacterial property, can be used as antibacterial materials.

scholarly journals Influence of Gd Doping on the Structural and Optical Properties of ZnO

2015 ◽  
Vol 773-774 ◽  
pp. 672-676 ◽  
Author(s):  
Nurul Fadzilah Ab Rasid ◽  
Siti Nooraya Mohd Tawil ◽  
Che Ani Norhidayah ◽  
Mohd Zainizan Sahdan
Keyword(s):  
Zinc Oxide ◽  
Optical Properties ◽  
Rare Earth ◽  
Metal Ion ◽  
Earth Metal ◽  
Rare Earth Ions ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
Zinc Oxide Films ◽  
Atomic Force

Doping transition metal or rare-earth metal ion are one of the most popular topics in semiconductors. In this work, gadolinium (Gd) doped zinc oxide thin films was prepared using spin-coating technique with different concentrations in atomic percent (at.%). The influences of rare-earth ions doped into the zinc oxide films were studies. The effects on the physical and optical properties of the films were investigated by field emission scanning electron microscope, x-ray diffraction, atomic force microscopic and ultraviolet-visible spectrophotometer. It was found that the properties of zinc oxide can be tuned by changing the concentration physical and optical of Gd.

scholarly journals High-pressure synthesis of REB5O8(OH)2 (RE = Ho, Er, Tm)

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Michael Zoller ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
Ir Spectroscopy ◽  
Earth Metal ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure Solution ◽  
Pressure Synthesis ◽  
The Rare Earth

AbstractThe rare earth oxoborates REB5O8(OH)2 (RE = Ho, Er, Tm) were synthesized in a Walker-type multianvil apparatus at a pressure of 2.5 GPa and a temperature of 673 K. Single-crystal X-ray diffraction data provided the basis for the structure solution and refinement. The compounds crystallize in the monoclinic space group C2 (no. 5) and are composed of a layer-like structure containing dreier and sechser rings of corner sharing [BO4]5− tetrahedra. The rare earth metal cations are coordinated between two adjacent sechser rings. Further characterization was performed utilizing IR spectroscopy.

X-Ray Diffraction Study of Rare Earth Epitaxial Structures Grown by MBE onto (111) GaAs

1989 ◽  
Vol 151 ◽  
Author(s):  
W. R. Bennett ◽  
R. F. C. Farrow ◽  
S. S. P. Parkin ◽  
E. E. Marinero
Keyword(s):  
Rare Earth ◽  
Molecular Beam Epitaxy ◽  
Rare Earth Metal ◽  
Molecular Beam ◽  
Earth Metal ◽  
Magnetic Ordering ◽  
Metal Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Strain Components

ABSTRACTWe report on the new epitaxial system LaF3/Er/Dy/Er/LaF3/GaAs (111) grown by molecular beam epitaxy. X-ray diffraction studies have been used to determine the epitaxial relationships between the rare earths, the LaF3 and the substrate. Further studies of symmetric and asymmetric reflections yielded the in-plane and perpendicular strain components of the rare earth layers. Such systems may be used to probe the effects of magnetoelastic interactions and dimensionality on magnetic ordering in rare earth metal films and multilayers.

Magneto-Chemical Properties of Some New Ni and Co Rare-Earth Metal Tungstates

2007 ◽  
Vol 128 ◽  
pp. 207-212 ◽  
Author(s):  
Adam Worsztynowicz ◽  
Slawomir M. Kaczmarek ◽  
Elzbieta Tomaszewicz
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Epr Spectroscopy ◽  
Chemical Properties ◽  
Earth Metal ◽  
Temperature Evolution ◽  
Ir Absorption ◽  
Absorption Bands ◽  
Metal Tungstates

New d-electron and rare-earth metal tungstates (CoRE2W2O10; CoRE4W3O16; Co2RE2W3O14 and NiRE2W2O10) were studied by the IR and EPR spectroscopy methods. The IR absorption bands with their maxima can be assigned to the symmetric and asymmetric stretching modes of W-O bonds in the joint of WO6 octahedra and also to the oxygen double WOOW bridge bonds. The wide, unstructured EPR powder spectra of these compounds and their temperature evolution have been analyzed and interpreted.

Characterization of chitosan and rare-earth-metal-ion doped chitosan films

1997 ◽  
Vol 198 (5) ◽  
pp. 1561-1578 ◽  
Author(s):  
Hao Jiang ◽  
Jim Liang ◽  
John T. Grant ◽  
Weijie Su ◽  
Timothy J. Bunning ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Metal Ion ◽  
Earth Metal ◽  
Chitosan Films
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