Synthesis and luminescence properties of Yb{sup 3+} and Er{sup 3+} doped KLa(WO{sub 4}){sub 2} nanoparticles

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.07.007· OSTI ID:21432482

Meng, Chen ^[1]; Hong, Chen ^[1]; Yu, Zhang; Li, Wu ^[2]; Yongfa, Kong ^[1]; Jingjun, Xu ^[1]

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1. MOE Key Laboratory of Weak-Light Nonlinear Photonics and TEDA Applied Physics School, Nankai University, Tianjin 300457 (China)
2. 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, Vol. 183, Issue 9; Other Information: DOI: 10.1016/j.jssc.2010.07.007; PII: S0022-4596(10)00281-1; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
CRYSTALS
DOPED MATERIALS
ERBIUM IONS
GRAIN SIZE
LANTHANUM TUNGSTATES
LUMINESCENCE
MULTI-PHOTON PROCESSES
NANOSTRUCTURES
POTASSIUM COMPOUNDS
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
YTTERBIUM IONS
ALKALI METAL COMPOUNDS
CHARGED PARTICLES
COHERENT SCATTERING
DIFFRACTION
ELECTRON MICROSCOPY
EMISSION
HEAT TREATMENTS
IONS
LANTHANUM COMPOUNDS
MATERIALS
MICROSCOPY
MICROSTRUCTURE
OXYGEN COMPOUNDS
PHOTON EMISSION
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
SCATTERING
SIZE
TRANSITION ELEMENT COMPOUNDS
TUNGSTATES
TUNGSTEN COMPOUNDS