Microwave assisted preparation of Eu 2+-doped Åkermanite Ca 2MgSi 2O 7

Alexander Birkel, Lucy E. Darago, Alasdair Morrison, Laurianne Lory, Nathan C. George, Alexander A. Mikhailovsky, Christina S. Birkel, Ram Seshadri

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A rapid and energy efficient microwave assisted solid state preparative route for europium-doped Åkermanite (Ca 2MgSi 2O 7) 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.

Original languageEnglish (US)
Pages (from-to)739-745
Number of pages7
JournalSolid State Sciences
Volume14
Issue number6
DOIs
StatePublished - Jun 1 2012
Externally publishedYes

Keywords

  • Eu doping
  • Microwave preparation
  • Phosphors
  • White lighting
  • Åkermanite

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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