Eu and Cu co-substituted calcium vanadate — The crystal structure, luminescence and color
| Autor: | Andrei A. Eliseev, Fardad Azarmi, Pavel E. Kazin, M.A. Pogosova |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Rietveld refinement Process Chemistry and Technology General Chemical Engineering Inorganic chemistry chemistry.chemical_element 02 engineering and technology Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences symbols.namesake Crystallography chemistry symbols Vanadate 0210 nano-technology Luminescence Raman spectroscopy Europium Spectroscopy Powder diffraction |
| Zdroj: | Dyes and Pigments. 148:219-223 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2017.09.017 |
| Popis: | Europium- and copper-doped calcium vanadates with the general formula Ca 3-1.5 x - y Eu x Cu y (VO 4 ) 2 (x = 0, 0.075; y = 0, 0.06 and 0.18) were synthesized by the solid state reaction. Synthesized materials were analyzed by the powder X-ray diffraction (PXRD), UV–Vis, Raman, luminescence spectroscopy, and colorimetry. Unit cell dimensions of the obtained samples were analyzed by the Rietveld refinement of the PXRD data. The crystal symmetry corresponds to the R 3 c group. Europium-doped samples exhibited luminescent properties, typical for the majority of europium-containing inorganic compounds. Additional copper-doping partially suppressed the europium luminescence. The europium-and-copper-doped samples possess bright yellow colors. Thus, obtained materials are perspective for the application as inorganic yellow pigments. |
| Databáze: | OpenAIRE |
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