摘要:
Curable polyorganosiloxanes are provided that cure in the absence of a hydrosilylation catalyst. The cured polyorganosiloxanes have increased stability and can be used as encapsulation resin is at a temperature far lower than 300° C., have excellent light transmission properties (colorless transparency. in a wavelength region of from ultraviolet light to visible light, light resistance, heat resistance, resistance to moist heat and UV resistance, and do not generate cracks and peeling even in use over a long period of time.
摘要:
The present invention relates to a phosphor comprising a nitride or an oxynitride, comprising an X-ray powder diffraction pattern comprising at least one Region having at least one peak with an intensity ratio I of 8% or less, the X-ray powder diffraction pattern measured in the 2θ range from 10° to 60° using a CuKα line (1.54184 {acute over (Å)}), wherein the Region is the 2θ range from 41.5° to 47°, the intensity of each peak is a value obtained after background correction, and the intensity ratio I is defined by the formula (Ip×100)/Imax (%), where Imax represents the height of the most intense peak present in the 2θ range from 34° to 37° and Ip represents the height of each peak.
摘要:
The present invention relates to a phosphor that satisfies requirements (1) to (3): (1) the phosphor satisfies Formula [2] and/or Formula [3]: 85≦{R455(125)/R455(25)}×100
摘要:
The present invention relates to an electrochemical cell having a controlled electrode surface, comprising: a first electrode and a second electrode wherein at least one of the first and second electrodes has a carbonaceous surface; an electrolyte containing at least one solvent; an additive associated with the carbonaceous surface of at least one of the first and second electrodes, wherein the additive comprises a compound having a molecular weight of not less than 105.
摘要:
A method for industrially producing a phosphor with high performance, in particular, high brightness. Also disclosed is a nitrogen-containing alloy and an alloy powder useful for producing the high performance phosphor. The method for producing the phosphor includes heating a raw material for a phosphor in whole or in part comprising an alloy containing two or more different metal elements under a nitrogen-containing atmosphere and heating the raw material for a phosphor under conditions such that the temperature change per minute is 50° C. or lower. Using an alloy as all or part of the raw material constituting the phosphor precursor, it is possible to suppress the rapid progression of nitridation during heat treatment and industrially produce a phosphor with high performance, in particular, high brightness.
摘要:
To provide a yellow to orange phosphor which has high luminance and excellent temperature characteristics and which also has high luminance when mixed with a phosphor of a different color.A phosphor containing a crystal phase represented by the following formula [I], wherein when its object color is expressed by the L*a*b* color system, the values of a*, b* and (a*2+b*2)1/2 satisfy −20≦a*≦−2, 71≦b* and 71≦(a*2+b*2)1/2, respectively: R3−x−y−z+w2MzA1.5x+y−w2Si6−w1−w2Alw1+w2Oy+w1N11−y−w1 [I].
摘要翻译:提供具有高亮度和优异温度特性的黄色至橙色荧光体,并且当与不同颜色的荧光体混合时也具有高亮度。 含有由下式[I]表示的结晶相的荧光体,其中当其物体颜色由L * a * b *颜色系统表示时,a *,b *和(a * 2 + b * 2 )1/2分别满足-20 @ a * @ - 2,71 @ b *和71 @(a * 2 + b * 2)1/2:R3-xy-z + w2MzA1.5x + y-w2Si6- w1-w2Alw1 + w2Oy + w1N11-y-w1 [I]。
摘要:
The present invention relates to a phosphor that satisfies requirements (1) to (3): (1) the phosphor satisfies Formula [2] and/or Formula [3]: 85≦{R455(125)/R455(25)}×100≦110 [2] 92≦{R405(100)/R405(25)}×100≦110 [3] wherein R455(125) represents an emission peak intensity when the phosphor is excited by light having a peak wavelength of 455 nm at 125° C., (2) the emission peak wavelength is in the range of 570 nm to 680 nm, and (3) the full width at half maximum of an emission peak is 90 nm or less. The phosphor of the present invention has a high luminous efficiency and emits light of orange to red with high luminance. The use of the phosphor makes it possible to produce a light-emitting device, an illumination apparatus, and an image display, having a high efficiency and excellent color rendering properties.
摘要:
There is provided a method for industrially producing a phosphor with high performance, in particular, high brightness. There is also provided a nitrogen-containing alloy and an alloy powder that can be used for the production method. A method for producing a phosphor includes a step of heating a raw material for the phosphor under a nitrogen-containing atmosphere, in which an alloy containing two or more different metal elements constituting the phosphor is used as the whole or part of the raw material for the phosphor, and in the heating step, the heating is performed under conditions such that the temperature change per minute is 50° C. or lower.It is possible to suppress the rapid progress of a nitridation reaction in heat treatment in producing the phosphor using an alloy for a phosphor precursor as the whole or part of the raw material, thereby industrially producing the phosphor with high performance, in particular, high brightness.
摘要:
Curable polyorganosiloxanes are provided that cure in the absence of a hydrosilylation catalyst. The cured polyorganosiloxanes have increased stability and can be used as encapsulation resin is at a temperature far lower than 300° C., have excellent light transmission properties (colorless transparency) in a wavelength region of from ultraviolet light to visible light, light resistance, heat resistance, resistance to moist heat and UV resistance, and do not generate cracks and peeling even in use over a long period of time.