摘要:
A blue phosphor, which has excellent durability and high brightness, and in particular a blue phosphor in a powder state, which can realize high-brightness luminescence upon exposure to an electron beam, are provided. The phosphor being characterized by comprising at least europium incorporated as a solid solution into an inorganic crystal having a crystal structure of an AlN crystal or an AlN solid solution crystal, wherein the phosphor emits divalent europium-derived fluorescence having a peak at a wavelength in the range of 430 nm to 500 nm upon exposure to an excitation source, is provided. In this case, it is more preferable that a predetermined metal element and silicon are incorporated therein. And a manufacturing method to manufacture such phosphor is also provided. Further, a lighting device comprising such blue phosphor is provided.
摘要:
This invention provides a blue phosphor, which has higher blue brightness and larger half-value width in an emission spectrum as compared with the conventional rare earth-activated sialon phosphor and has better durability as compared with the conventional oxide phosphor. The phosphor comprises a metal element M, wherein M represents Ce, dissolved as a solid solute in a nitride or oxynitride crystal having a β-type Si3N4 crystal structure, an AlN crystal structure, or an AlN polytype structure, and emits fluorescence having a peak in a wavelength region of 450 nm to 500 nm upon exposure to light from an excitation source.
摘要翻译:本发明提供一种蓝色荧光体,与常规的稀土激活的赛隆荧光体相比,在发光光谱中具有较高的蓝色亮度和较大的半值宽度,并且与常规的氧化物荧光体相比具有更好的耐久性。 磷光体包括金属元素M,其中M表示Ce,作为固体溶质溶解在具有β型Si 3 N 4晶体结构的氮化物或氧氮化物晶体中,AlN晶体结构或AlN多型结构,并且发射具有峰 在从激发源曝光的情况下在450nm至500nm的波长区域中。
摘要:
The invention has for its object the provision of an oxynitride fluorescent material has higher emission luminance than conventional rare earth element-activated sialon fluorescent materials.To this end, an oxynitride fluorescent material is designed in such a way as comprising a JEM phase as a mother crystal and a luminescence center element M1. For instance, the luminescence center element M1 is at least one kind of an element selected from Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. And the JEM phase is expressed as a general formula MA1(Si6-zAlz) N10-zOz (where M indicates a metal element, 0.1≦z≦3).
摘要翻译:本发明的目的是提供氮氧化物荧光材料具有比常规稀土元素激活的赛隆荧光材料更高的发光亮度。 为此,氮氧化物荧光材料被设计成包括JEM相作为母体晶体和发光中心元件M 1。 例如,发光中心元素M 1是选自Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb中的至少一种元素, 和卢。 并且JEM相以通式MA1(Si 6-z)Al z Z z表示为N 10-z O z, / SUB>(其中M表示金属元素,0.1 <= z <= 3)。
摘要:
Disclosed is a phosphor containing a nitrogen atom, a compound having a garnet structure and an activating agent. The activating agent is composed of at least one element selected from the group consisting of Ce, Pr, Nd, Eu, Tb, Dy, Ho, Er, Tm, Yb and Mn.
摘要:
A fluorescence emitting device is provided using a phosphor emitting a light by bombardment of an electron beam and having excellent luminance lifetime. The electron beam excited phosphor comprises a solid solution prepared by an AIN crystal or AIN solid solution crystal formed with at least Eu, Si and oxygen represented by the composition formula Eua AIb Sic Nd Oe[Wherein a+b+c+d+e=1, and a, b, c, d and e satisfy the following conditions: 0.00001≦a≦0.1 0.4≦b≦0.55 0.001≦c≦0.1 0.4≦d≦0.55 0.001≦e≦0.1]
摘要翻译:使用通过轰击电子束发射光并且具有优异的亮度寿命的荧光体来提供荧光发射装置。 电子束激发的荧光体包括通过由至少由Eu,Si和氧组成的AlN晶体或AIN固溶体晶体制备的固溶体,其由组成式Eua Alb Sic Nd Oe表示[其中a + b + c + d + e = 1,a,b,c,d和e满足以下条件:0.00001 <= a <= 0.1 0.4 <= b <= 0.55 0.001 <= c <= 0.1 0.4 <= d <= 0.55 0.001 <= e < = 0.1]
摘要:
A phosphor with a high light-emitting intensity and indicated by general formula MeaRebSicAldNeOf. Me has Sr as an essential element thereof and can include one or more types of element selected from Na, Li, Mg, Ca, Ba, Sc, Y, and La. Re has Eu as an essential element thereof and can include one or more types of element selected from Mn, Ce, Tb, Yb, and Sm. When composition ratios a, b, c, d, e, and f fulfill a=1−x, b=x, c=(2+2p)×(1−y), d=(2+2p)×y, e=(1+4p)×(1−z), and f=(1+4p)×z, parameters p, x, y, and z fulfill the following: 1.630
摘要:
A phosphor substituting the conventional sialon phosphor or oxide phosphor activated by rare earth and an application thereof are provided. The phosphor of the present invention comprises an inorganic crystal including at least La, Si, Al, N (nitrogen), M element (M is at least one kind of element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb), and O (oxygen) if necessary and the inorganic crystal is a host crystal, which is LaSi9Al19N32 crystal or a solid-solution crystal thereof, activated by the M element.
摘要:
A semiconductor light-emitting device that is high in luminous efficiency and that emits light which is high in color rendering property includes a semiconductor light-emitting element that emits blue light; a green fluorescent substance that absorbs the blue light and emits green light; and an orange fluorescent substance that absorbs the blue light and emits orange light, fluorescence emitted by the green fluorescent substance and the orange fluorescent substance having an emission spectrum that has a peak wavelength of not less than 540 nm and not more than 565 nm and that satisfies the relation of 0.70>PI(90)/PI(MAX)>0.55, where PI(MAX) represents an emission intensity at the peak wavelength, and PI(90) represents an emission intensity at a wavelength 90 nm longer than the peak wavelength.
摘要:
An incandescent lamp color light emitting diode lamp comprises a semiconductor blue light emitting diode chip having a center emission wavelength in a range of from 400 nm to 480 nm and a phosphor that absorbs light emitted from the diode chip to emit light having a different wavelength than the light emitted from the diode chip. The phosphor is represented by a general formula of Mp(Si, Al)12(O, N)16:Eu2+q. The main phase is an α-SiAlON phosphor having an α SiAlON structure, wherein M is at least one element of Ca, Y, Mg, Li, Sc, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Sr and p is from 0.75 to 1.0; and q is between 0.02 and 0.09. The diode lamp emits light having an emission color produced by a mixture of the light emitted from the semiconductor blue light emitting and the light emitted from the α-SiAlON. The chromaticity range thereof falls within the range defined by chromaticity coordinates (x, y) of (0.4775, 0.4283), (0.4594, 0.3971), (0.4348, 0.4185), and (0.4214, 0.3887) on the XYZ chromaticity diagram.
摘要:
A phosphor substituting the conventional sialon phosphor or oxide phosphor activated by rare earth and an application thereof are provided. The phosphor of the present invention comprises an inorganic crystal including at least La, Si, Al, N (nitrogen), M element (M is at least one kind of element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb), and O (oxygen) if necessary and the inorganic crystal is a host crystal, which is LaSi9Al19N32 crystal or a solid-solution crystal thereof, activated by the M element.