| abstract |
The invention relates to a nitrogen-containing luminescent particle, characterized in that the structure of the nitrogen-containing luminescent particle is divided into an oxygen-poor zone, a transition zone and an oxygen-rich zone from the core of the particle to the outer surface in an increasing proportion of oxygen, and the main body of the oxygen-poor zone is a nitride luminescent crystal or an oxygen-containing solid solution thereof, wherein the main body of the transition region is an oxynitride material, the main body of the oxygen-rich region is an oxide material or an oxynitride material; and the nitride luminescent crystal or an oxygen-containing solid solution thereof is M M-m1 A a1 B b1 O o1 N n1 :R m1 , the oxynitride material is M m-m2 A a2 B b2 O o2 N n2 :R m2 , oxide material or oxynitride material M m-m3 A a3 B b3 O o3 N n3 : R m3 ; the nitrogen-containing luminescent particles and the nitrogen-containing illuminant of the invention have good chemical stability, good anti-aging light aging performance and high luminous efficiency, and are suitable for various light-emitting devices; the manufacturing method of the invention Simple and reliable, suitable for industrial mass production. |