Application of Nitride and Oxynitride Compounds to Various Phosphors for White LED

Kyota Uheda

doi:10.4028/www.scientific.net/KEM.403.15

Paper Titles

Preparation and Characterization of MM’Si₄N₆C Ceramics
p.3

The Phase Evolution in the Si₃N₄-AlN System after High-Energy Mechanical Treatment of the Precursor Powder
p.7

New Green Phosphor Ba₃Si₆O₁₂N₂:Eu for White LED: Crystal Structure and Optical Properties
p.11

Application of Nitride and Oxynitride Compounds to Various Phosphors for White LED
p.15

Fabrication of Electrically Conductive Si₃N₄ Ceramics by Dispersion of Carbon Nanotubes
p.19

Low Temperature Sintering of Si₃N₄ Ceramics and its Applicability as an Inert Matrix of the Transuranium Elements for Transmutation of Minor Actinides
p.23

2.45 GHz Microwave Sintering of Silicon Nitride
p.27

Sintering Shrinkage Behavior of Si₃N₄ Ceramics Prepared by a Post-Reaction Sintering Technique
p.31

Sintering Shrinkage Behavior and Mechanical Properties of HfO₂-Added Si₃N₄ Ceramics
p.35

HomeKey Engineering MaterialsKey Engineering Materials Vol. 403Application of Nitride and Oxynitride Compounds to...

Application of Nitride and Oxynitride Compounds to Various Phosphors for White LED

Abstract:

Multiternary nitride and oxynitride compounds doped with rare earth ions, such as Eu2+ and Ce3+ have been enthusiastically applied as various phosphors to white LED. New red and green phosphors, CaAlSiN3:Eu and Ba3Si6O12N2:Eu, have been successfully synthesized, recently. The red phosphor has intense emission around 650 nm under two different irradiations at 405 and 455 nm from blue- and near UV-LED chips, respectively; while strong emission is observed around 520 nm from the green phosphor. Both phosphors also show small thermal quenching over the temperatures up to 150 °C. In addition, both LaSi3N5:Ce and La3Si8O4N11:Ce in lanthanum silicon nitride and oxynitride were examined as candidates for a blue phosphor in white LED with near UV-LED chip.