Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7991301 | Journal of Alloys and Compounds | 2018 | 24 Pages |
Abstract
Series of Mn4+-activated LiLa2NbO6 red emitting phosphors were prepared by the solid state method. The structural and luminescence properties are investigated on the basis of X-ray diffraction (XRD), emission and excitation spectra, and luminescence decay curves. The LiLa2NbO6:Mn4+ phosphors can be efficiently excited by near-UV to blue light and exhibit bright red emission at around 712â¯nm, which can be assigned to the 2Egâ4A2g transition of the 3â¯d3 electrons in [MnO6] octahedra. Temperature dependent emission spectra and decay curves from 10 to 480â¯K are analyzed to understand the luminescence mechanism of Mn4+ in LiLa2NbO6 lattice. Notably, such a novel red emitting phosphor shows special anti-thermal quenching behavior.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Lin Qin, Shala Bi, Peiqing Cai, Cuili Chen, Jing Wang, Sun Il Kim, Yanlin Huang, Hyo Jin Seo,