| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1643112 | Materials Letters | 2015 | 4 Pages |
•K2SiF6:Mn4+ was synthesized from SiO2 powders through redox reaction in HF/KMnO4 solution.•An intense absorption band in blue and a bright emission in red indicated the phosphor K2SiF6:Mn4+.•This phosphor and the synthesis method are expected to be promising candidates.
We demonstrate a simple method of K2SiF6:Mn4+ red phosphor and discuss its promising application in warm-white lighting emitting diodes. The K2SiF6:Mn4+ was synthesized from SiO2 powders through redox reaction in HF/KMnO4 solution. To further increase emission efficiency, KF was introduced in the solution. An intense absorption band in blue and a bright emission in red indicated the phosphor K2SiF6:Mn4+. This phosphor and the synthesis method are expected to be promising candidates for application in white LEDs.
