Synthesis, characterization and photoluminescence properties of Eu3+ doped columbite CdNb2O6
| Autor: | Ali Sadi Başak, Mete Kaan Ekmekçi, Ayhan Mergen, Mustafa İlhan, Murat Erdem |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Photoluminescence Materials science Doping Analytical chemistry Salt (chemistry) 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry engineering Orthorhombic crystal system Electrical and Electronic Engineering Molten salt 0210 nano-technology Luminescence Columbite Natural bond orbital |
| Zdroj: | Optik. 127:1918-1921 |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2015.11.031 |
| Popis: | Pure and Eu 3+ -doped CdNb 2 O 6 powders have been prepared by a molten salt synthesis method using Li 2 SO 4 /Na 2 SO 4 salt mixture as a flux at relatively low temperatures as compared to solid state reaction. X-ray diffraction patterns of pure CdNb 2 O 6 samples indicated orthorhombic single phase. Photoluminescence investigations of CdNb 2 O 6 samples showed a strong blue emission band centered at 460 nm. For Eu-doped CdNb 2 O 6 samples, the luminescence of Eu 3+ was observed with the host red emission varying with the Eu-doping concentrations. This PL characteristic of the doped samples may be attributed to the energy transfer between Eu 3+ and niobate groups (NbO 6 ). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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