抄録
We have recently developed novel oxynitride phosphors based on alpha-SiAlON for white light-emitting didoes. The luminescence efficieny of these phosphors is greatly affected by the particle surface state, morphology and size distribution. To achive this goal, several strategies are employed, which include oxidation of phosphors, annealing, and careful selection of starting powders. This investigation reports that the luminescence efficieny of SiAlON phosphors can be improved by modifying the particle surface and by controlling the morphology and size distribution of phosphor particles.
