Journal
SOLID STATE SCIENCES
Volume 14, Issue 6, Pages 739-745Publisher
ELSEVIER
DOI: 10.1016/j.solidstatesciences.2012.03.014
Keywords
Akermanite; Phosphors; Eu2+ doping; White lighting; Microwave preparation
Funding
- Alexander von Humboldt Foundation
- NSF DMR [1121053]
- ConvEne IGERT [NSF-DGE 0801627]
- Worshipful Company of Armourers and Brasiers
- General Council of Britanny
- U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- CISEI
- Direct For Mathematical & Physical Scien [0843934] Funding Source: National Science Foundation
- Division Of Materials Research [0843934] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1121053] Funding Source: National Science Foundation
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A rapid and energy efficient microwave assisted solid state preparative route for europium-doped Akermanite (Ca2MgSi2O7) has been developed. This method reduces the reaction time and energy needed by more than 90%, compared to the preparation carried out in a conventional furnace. The obtained samples are phase pure as has been determined using synchrotron X-ray powder diffraction data and Rietveld analyses. Scanning electron microscopy was employed to investigate the morphology of the microwave prepared compounds whilst energy dispersive X-ray spectroscopy (EDX) was used to verify the elemental composition of the specimens. A systematic investigation of the influence of the utilized microwave setup is presented. Finally, the microwave prepared materials were subject to temperature dependent photoluminescence measurements in order to investigate the thermal quenching of the luminescence. (C) 2012 Elsevier Masson SAS. All rights reserved.
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