| 초록 |
Eu2+-doped Barium silicon oxynitride phosphor particles were prepared by spray pyrolysis method and the luminescence characteristics were investigated. (Ba2-x,Eux)SiO4 phosphor is a representative green phosphor for near-UV LED. In most cases, the nitride and oxynitride are prepared by a solid-state reaction. In this work, Eu2+-doped barium silicate partially substituted with nitrogen was prepared by spray pyrolysis. With varying the preparation conditions, the luminescent properties were investigated. The (Ba2-x,Eux)SiO4 phosphor has a green emission, whereas, the nitrogen-doped barium silicates showed a great red shift in the emission peak. More details were discussed. |
