Synthesis and luminescence properties of Yb{sup 3+} and Er{sup 3+} doped KLa(WO{sub 4}){sub 2} nanoparticles
- MOE Key Laboratory of Weak-Light Nonlinear Photonics and TEDA Applied Physics School, Nankai University, Tianjin 300457 (China)
- School of Physics, Nankai University, Tianjin 300071 (China)
The luminescent nanocrystalline Yb{sup 3+} and Er{sup 3+} codoped KLa(WO{sub 4}){sub 2} has been prepared by Pechini method. X-ray diffraction and transmission electron microscope were used to study the structure of the obtained samples. The average grain size of these samples depended on the annealing temperature, increasing with the increase of the temperature. The cell parameters and the crystallite size of KYb{sub x}Er{sub 0.02}La{sub 0.98-x}(WO{sub 4}){sub 2} nanocrystalline decreased with the increase of x value. Luminescence studies showed that the intensity of upconversion emission of the Yb{sup 3+} and Er{sup 3+} codoped samples was much stronger than that of the Er{sup 3+} single doped samples (pumped by 980 nm LD). The upconversion emission mechanisms suggested that all the three bands of upconversion emissions were two-photon process. - Graphical abstract: Er{sup 3+} and Yb{sup 3+} codoped KLa(WO{sub 4}){sub 2} nanoparticles have been prepared by Pechini method. Luminescence studies showed that the intensity of upconversion emission of the Yb{sup 3+} and Er{sup 3+} codoped samples was much stronger than that of the Er{sup 3+} single doped samples (pumped by 980 nm LD), and the upconversion emission mechanisms suggested that all the three bands of upconversion emissions were two-photon process.
- OSTI ID:
- 21432482
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 9 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALKALI METAL COMPOUNDS
ANNEALING
CHARGED PARTICLES
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
DOPED MATERIALS
ELECTRON MICROSCOPY
EMISSION
ERBIUM IONS
GRAIN SIZE
HEAT TREATMENTS
IONS
LANTHANUM COMPOUNDS
LANTHANUM TUNGSTATES
LUMINESCENCE
MATERIALS
MICROSCOPY
MICROSTRUCTURE
MULTI-PHOTON PROCESSES
NANOSTRUCTURES
OXYGEN COMPOUNDS
PHOTON EMISSION
POTASSIUM COMPOUNDS
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SIZE
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
TUNGSTATES
TUNGSTEN COMPOUNDS
X-RAY DIFFRACTION
YTTERBIUM IONS