Abstract: Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a first active material represented by Formula 1: Li2Mo1-nR1nO3; a second active material represented by Formula 2: Li2Ni1-mR2mO2; and a third active material configured to allow that allows reversible intercalation and deintercalation of lithium ions. In Formula 1, 0?n<1, and R1 is selected from the group consisting of manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), magnesium (Mg), nickel (Ni), and combinations of at least two of the foregoing elements. In Formula 2, 0?m<1, and R2 is selected from the group consisting of Mn, Fe, Co, Cu, Zn, Mg, molybdenum (Mo), and combinations of at least two of the immediately foregoing elements.

Abstract: Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a current collector, a first layer irreversibly deintercalating lithium ions, and a second layer allowing reversible intercalation and deintercalation of lithium ions. In one embodiment, the first layer further comprises a first sublayer and a second sublayer, in which the first sublayer is interposed between the current collector and the second sublayer. The first sublayer comprises a first active material represented by Formula 1 Li2Mo1-nR1nO3, and the second sublayer comprises a second active material represented by Formula 2 Li2Ni1-mR2mO2. In Formula 1, 0?n?1; and R1 is selected from the group consisting of manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), magnesium (Mg), nickel (Ni), and combinations of at least two of the foregoing elements.

Abstract: Disclosed is a positive active material for a lithium secondary battery. The positive active material includes a lithium molybdenum oxide having an X-ray diffraction (XRD) pattern with peaks at 11.5±2°, 21±2°, 38±2°, and 64±2° 2-theta (2?) and represented by Formula 1: LixMoO3, where 1<x?3. Also disclosed is a method of preparing the positive active material.

Abstract: A positive active material for lithium secondary battery containing a composite that includes a composite of lithium aluminum oxide and lithium nickel oxide and lithium secondary battery using the same.

Abstract: A lithium secondary battery including lithium molybdate. The lithium molybdate is a composite including amorphous lithium molybdate as a minor component and crystalline lithium molybdate as a major component.

Abstract: A green phosphor, a plasma display panel (PDP) including the same, and a method for making the same. In one example, the green phosphor includes strontium (Sr); aluminum (Al); europium (Eu); and at least one element (M) selected from the group consisting of phosphorous (P), arsenic (As), antimony (Sb), and bismuth (Bi).

Abstract: Provided are a phosphor used in a PDP, which is a compound represented by Formula 1 below and a PDP including a phosphor layer comprising the phosphor. (Y1-x-yGdxTby)AlrQ3-r(BO3)4 ??Formula 1 where 0<x?1, 0<y?1, Q is Sc, In, or Ga, and 0?r<3. When the phosphor is used to form a green phosphor layer of a PDP, the luminance saturation problem of a conventional green phosphor can be overcome. In addition, a PDP including a phosphor layer comprising the phosphor has a wider color reproduction range and no reduction in luminance according to the mixing ratio of each phosphor contained in the phosphor compared with a conventional phosphor used in a PDP. Therefore, a PDP including a phosphor layer comprising the phosphor can have far superior image qualities.

Abstract: A green phosphor including a compound represented by Formula 1 (Y3-xMx) (Al5-yM?y)O12:Cez and a pigment. The green phosphor having the compound represented by Formula 1 and a pigment has a shorter decay time than conventional phosphors, and thereby confers excellent luminescence characteristics and color purity. A display panel including the green phosphor 1 is also provided herein.

Abstract: A green phosphor, a plasma display panel (PDP) including the same, and a method for making the same. In one example, the green phosphor includes strontium (Sr); aluminum (Al); europium (Eu); and at least one element (M) selected from the group consisting of phosphorous (P), arsenic (As), antimony (Sb), and bismuth (Bi).

Abstract: A blue phosphor, a display device including the same, and associated methods, the blue phosphor including BaMgAl10O17:Eu (BAM) phosphor particles having a surface component and an internal component, wherein an aluminum/barium (Al/Ba) molar ratio of the surface component of the phosphor particles is 1.1 to about 1.4 times the Al/Ba molar ratio of the internal component of the phosphor particles, and the Al/Ba molar ratios are continuously variable between the internal component and the surface component.

Abstract: A green phosphor including a first phosphor represented by Formula 1: Ya-x-kCekM?xAlbO3/2(a+b)??(1). In Formula 1, M? includes at least one of Sc, Gd, In, Lu, La, and x, k, a, and b satisfy the relations 0.0?x?5.0, 0.0<k<0.1, 0.5?a?5.0, 0.5?b?7.0, and a-x-k >0.

Abstract: Phosphor mixtures for phosphor layers of plasma display devices are provided. The phosphor mixture includes a first compound selected from compounds represented by Gd1-yTbyAl3(BO3)4 (0.05?Y?0.8) and compounds represented by YBO3:Tb3+, and a second compound represented by Zn(Ga1-XAlx)2O4:Mn2+ (0.2?X?0.8). The first compound and second compound are mixed in a weight ratio ranging from about 3:7 to about 6:4. The inventive phosphor mixtures exhibit reduced decay times, thereby increasing color reproducibility and improving brightness characteristics.

Abstract: A plasma display panel including phosphor layers having zeta potentials of the same polarity. In one embodiment, the phosphor layers have positive zeta potentials and have a uniform discharge characteristic and a uniform lifetime, and an address discharge of the plasma display panel can be easily caused, and damage on phosphor layers of the plasma display panel due to positive charges during a sustain discharge of the plasma display panel can be reduced.

Abstract: A green phosphor, including a first phosphor represented by Formula 1: (Y3-xCex)aAlbOc??(1), wherein x, a, b, and c satisfy the relations: 0<x?1, 0.5?a?3, 3?b?9, and 2c=9a+3b; and a second phosphor including at least one of: Zn2SiO4:Mn, YBO3:Tb, Y(1-x1)Gdx1Al3(BO3)4:Tb, wherein x1 satisfies the relation 0?x1?1, Li2Zn(Ge,?)zO8:Mn, wherein ? includes Al or Ga, and z satisfies the relation 3?z?4, BaMgAl10O17:Mn, BaMgAl12O19:Mn, and Zn(Ga1-x2Alx2)2O4:Mn, wherein x2 satisfies the relation 0.2?x2?0.8.

Abstract: A phosphor composition including a first phosphor represented by Formula 1: Ba1?bMg1?aAl10O17:Mna,Eub ??(1). In Formula 1, a and b satisfy the relations: 0.05?a?0.4, and 0.006?b<0.05.

Abstract: The phosphor composition including a first phosphor represented by Formula 1: Y3?x?kCekM?xAla?yM?yO(1.5a+4.5)??(1). In Formula 1, M? includes at least one of Sc, In, and La, M? includes at least one of Ga, Sc, and In, and x, y, k, and a satisfy the relations: 0.0?x<3.0, 0.0<y?7.0, 0.0<k<0.1, 4.0?a?7.0, a?y?0.0, and x+k?3.0.

Abstract: A phosphor composition for a display device, including a phosphor represented by Formula 1: Y3-x-k-zCekMzM?xAla-yM?yO(1.5a+4.5) ??(1). In Formula 1, M includes at least one of Tb, Dy, and Eu, M? includes at least one of Sc, Gd, In, and La, M? includes at least one of Ga, Sc, and In, and x, y, z, k, and a represent molar ratios and satisfy the relations: 0.0?x<3.0, 0.0?y?7.0, 0.0<k<0.1, 0.0<z<0.5, 4.0?a?7.0, a-y?0.0, x+k+z?3.0, and 0.01?z/k?20.

Abstract: Provided are a phosphor used in a PDP, which is a compound represented by Formula 1 below and a PDP including a phosphor layer comprising the phosphor. (Y1-x-yGdxTby)AlrQ3-r(BO3)4 Formula 1 where 0<x?1, 0<y?1, Q is Sc, In, or Ga, and 0?r<3. When the phosphor is used to form a green phosphor layer of a PDP, the luminance saturation problem of a conventional green phosphor can be overcome. In addition, a PDP including a phosphor layer comprising the phosphor has a wider color reproduction range and no reduction in luminance according to the mixing ratio of each phosphor contained in the phosphor compared with a conventional phosphor used in a PDP. Therefore, a PDP including a phosphor layer comprising the phosphor can have far superior image qualities.

Abstract: The present invention provides a green light-emitting phosphor for a light-emitting device excited by vacuum ultraviolet rays, a light-emitting device, and a method of preparing the same. The green light-emitting phosphor is represented by the formula AxB4-2xO6-2x:Mny, wherein A is Mg, Zn, Ca, or Li, B is Al or Ga, 0.6?x?1.4, and 0.01?y?0.1. The phosphor has excellent brightness, color purity, and discharging characteristics, and a short decay time. In one embodiment, the phosphor has a stable spinel structure, and is stable with regard to external influence such as heat, ion bombardment, and vacuum ultraviolet rays. Longer-lived light-emitting devices are also disclosed.

Abstract: A phosphor with an amorphous layer includes a core phosphor and an amorphous oxide layer having a thickness of about 1 to about 30 nm on the core phosphor, wherein the phosphor with the amorphous layer exhibits a zeta potential of about 10 to about 50 mV.