Article ID Journal Published Year Pages File Type
1482659 Journal of Non-Crystalline Solids 2011 5 Pages PDF
Abstract

Static and dynamic structure of ZnWO4 nanoparticles, synthesized by co-precipitation technique, has been studied by temperature dependent x-ray absorption spectroscopy at the Zn K-edge and W L3-edge. Complementary experimental techniques, such as x-ray powder diffraction, Raman and photoluminescence spectroscopies, have been used to understand the variation of vibrational, optical, and structural properties of nanoparticles, compared to microcrystalline ZnWO4. Our results indicate that the structure of nanoparticles experiences strong relaxation leading to the significant distortions of the WO6 and ZnO6 octahedra, being responsible for the changes in optical and vibrational properties.

Research Highlights► ZnWO4 nanoparticles, synthesized by co-precipitation technique. ► Static and dynamic structure was studied by x-ray absorption spectroscopy. ► The structure of nanoparticles experiences strong relaxation. ► The structure relaxation leads to distortions of the WO6 and ZnO6 octahedra. ► The distortions are responsible for changes in optical and vibrational properties.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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