| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5402682 | Journal of Luminescence | 2009 | 4 Pages |
Abstract
Alkaline earth silicates, which comprise a host material doped with rare-earth minerals, show excellent luminescence properties with various crystal structures and high stability. From results of this study, we report luminescence properties of Ba9Sc2Si6O24:Eu2+ and Ba9Sc2+δSi6O24â3δN3δ:Eu2+ as a novel alkaline earth silicate and silicon oxynitride phosphors for white LEDs. Using a conventional solid-state reaction, Ba9Sc2Si6O24:Eu2+ samples were synthesized and Ba9Sc2+δSi6O24â3δN3δ:Eu2+ samples were obtained by nitrization of Ba9Sc2+δSi6O24:Eu2+. The samples can be excited by blue light, exhibiting green (Ba9Sc2Si6O24:Eu2+) and yellow (Ba9Sc2+δSi6O24â3δN3δ:Eu2+) efficiently, which are emissions for use in white LEDs essentially.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Tomoyuki Nakano, Yoshitaka Kawakami, Kazuyoshi Uematsu, Tadashi Ishigaki, Kenji Toda, Mineo Sato,