Highly doped alkaline earth nanofluorides synthesized from ionic liquids

作者：Lorbeer C; Cybinska J; Zych E; Mudring A V^*

来源：Optical Materials, 2011, 34(2): 336-340.

DOI：10.1016/j.optmat.2011.04.019

• Alkaline earth fluorides
• Quantum cutting
• Ionic liquids
• Morphology
• Nanoparticles

Bulk alkaline earth fluorides co-doped with optically active ions are prominent materials for luminescent applications. However, for phosphor materials the changeover to the nanoscale is a tightrope walk between achieving desirable features of small particles such as reduced light scattering and unwanted drawbacks such as a high surface defect concentration which is likely to result in quenching of luminescence. A new preparation route via ionic liquids allows obtaining pure and oxygen-free alkaline earth fluorides co-doped with Eu3+ and Gd3+ on the nanoscale with excellent quantum cutting abilities.

• 出版日期2011-12