PHOSPHOR, PRODUCTION METHOD FOR SAME, AND LIGHT-EMITTING DEVICE

• Main Authors: TOYOSHIMA, Hiroaki, YOSHIMATU, Ryo, TANAKA, Motoi, AKABANE, Masato
• Format: Patent
• Language: English; French; Japanese
• Published: 03.10.2019
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; SEMICONDUCTOR DEVICES

A phosphor characterized by containing a fired product that comprises a composition represented by general formula M1 aM2 bM3 cAl3N4-dOd (where M1 is one or more elements selected from Sr, Mg, Ca, and Ba, M2 is one or more elements selected from Li, Na, and K, and M3 is one or more elements selected from Eu, Ce, and Mn), wherein a, b, c, and d satisfy each of the following formulas. 0.850 ≤ b ≤ 1.150 0.001 ≤ c ≤ 0.010 0.10 < d ≤ 0.20 0.09 ≤ d/(a+d) < 0.20 L'invention concerne un phosphore caractérisé en ce qu'il contient une composition représentée par la formule générale M1 aM2 bM3 cAl3N4-dOd, dans laquelle M1 représente un ou plusieurs éléments choisis parmi Sr, Mg, Ca et Ba; M2 représente un ou plusieurs éléments choisis parmi Li, Na, and K; et M3 représente un ou plusieurs éléments choisis parmi Eu, Ce et Mn); a, b, c et d satisfaisant chacune les formules suivantes : 0,850 ≤ b ≤ 1,150 0,001 ≤ c ≤ 0,010 0,10 < d ≤ 0,20 0,09 ≤ d/(a+d) < 0,20. 一般式Ｍ1 aＭ2 bＭ3 cＡｌ3Ｎ4-dＯd（ただし、Ｍ1はＳｒ、Ｍｇ、Ｃａ及びＢａから選ばれる１種以上の元素であり、Ｍ2はＬｉ、Ｎａ及びＫから選ばれる１種以上の元素であり、Ｍ3はＥｕ、Ｃｅ及びＭｎから選ばれる１種以上の元素である。）で表される組成を有する焼成物を含み、前記ａ、ｂ、ｃ及びｄが次の各式を満たすことを特徴とする蛍光体。 ０．８５０≦ａ≦１．１５０ ０．８５０≦ｂ≦１．１５０ ０．００１≦ｃ≦０．０１０ ０．１０＜ｄ≦０．２０ ０．０９≦ｄ／（ａ＋ｄ）＜０．２０