| abstract |
The invention relates to a method for producing an oxynitride phosphor powder, which comprises sintering a precursor at a pressure of 0.1-1000 MPa under nitrogen pressure to synthesize an oxynitride phosphor powder having the general formula MxAyBzOuNv (0.00001 ≦ y ≦ 3; 0.00001 ≦ z ≦ 6; 0.00001 ≦ u ≦ 12; 0.00001 ≦ v ≦ 12; 0.00001 ≦ x ≦ 5), where M is the activation center of one or more mixtures, and A is one or more mixtures A divalent element, B is one or more mixed trivalent or tetravalent elements, O is a mixed or multiple mixed one- or two-valent element, and N is one or more mixed one- or two-valent or trivalent elements. The pure phase oxynitride phosphor powder can be produced by the production method of the invention, and the manufacturing method of the invention is simple and can be synthesized in a large amount. |