Abstract:
A halosilicate phosphor represented by Formula 1 p(Ca1-xM1x)O.qM2O2.rM3A2:sM4 wherein M1 includes at least one selected from a group consisting of Sr2+ and Ba2+; M2 includes at least one selected from a group consisting of Si4+ and Ge4+; M3 includes at least one selected from a group consisting of Ca2+, Sr2+ and Ba2+; M4 includes at least one selected from a group consisting of Eu2+, Mn2+, Sb2+, Ce3+, Pr3+, Nd3+, Sm3+, Tb3+, Dy3+, Ho3+, Er3+, Yb3+ and Bi3+; A includes at least on selected from a group consisting of F−, Cl−, Br− and I−; and wherein 0≦x
Abstract:
Disclosed is a method for preparing an oxide nano phosphor. A metal precursor solution is prepared. The metal precursor solution is impregnated into a porous polymer material. A heat treatment is performed on the porous polymer material having the metal precursor solution impregnated therein. The heat treatment is performed by heating the porous polymer material having the metal precursor impregnated therein up to a temperature of higher than 500° C. solution at a temperature elevating rate of higher than 100° C. per minute.
Abstract:
A flat lamp with horizontal facing electrodes is provided, in which a front substrate and a rear substrate are spaced such as to face each other. Walls between the front and rear substrates form a discharging space filled with a discharge gas. A plurality of front electrodes and a plurality of rear electrodes are provided on facing surfaces of the front and rear substrates, respectively. The front and rear electrodes, formed in strips, are arranged in such a way that the front electrodes alternate with the rear electrodes. Accordingly, the discharging distance between front and rear electrodes is lengthened, and many fine discharging operations occur between tip electrodes extending from the lateral sides of the electrode strips and flat portions of corresponding electrode strips. Therefore, a current concentration is prevented, thereby achieving uniform discharging. Also, brightness of the flat lamp increases.
Abstract:
A water splitting oxygen evolving catalyst including: a metal oxide particle including a metal oxide represented by Formula 1: Co1−xMxOY Formula I wherein M is at least one selected from Al, In, Ga, Si, and Sn, x and y respectively satisfy the inequalities 0≦x
Abstract translation:一种水分解放氧催化剂,包括:金属氧化物颗粒,其包含由式1表示的金属氧化物:Co1-xMxOY式I,其中M为选自Al,In,Ga,Si和Sn中的至少一种,x和y分别满足 不等式0 @ x <0.5和1
Abstract:
Provided are an alkaline earth metal silicate-based phosphor which is a compound represented by Formula 1 below, and a white light-emitting device (LED) including the same: (M11-x-yAxBy)aMgbM2cOdZe Formula 1 wherein, M1 is one selected from the group consisting of Ba, Ca, and Sr; M2 is at least one selected from Si or Ge; A and B are each independently one selected from the group consisting of Eu, Ce, Mn, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Bi, Sn, and Sb; Z is at least one selected from the group consisting of a monovalent or divalent element, H, and N; and 0
Abstract:
Provided is a laser display device. The laser display device may include at least one light source configured to emit at least one laser beam, at least one scanning unit configured to perform a scanning with the at least one laser beam, and an image forming unit configured to generate excitation light and scattering light by receiving the at least one laser beam from the scanning unit to form an image.
Abstract:
A method of preparing oxynitride phosphor represented by Formula 1: (M(1-x)Eux)aSibOcNd Formula 1 wherein M is an alkaline earth metal; and 0
Abstract:
A photo-luminescent (PL) liquid crystal display (LCD) including a blue dichroic mirror layer disposed under a light emitting layer is provided. Visible light generated from the light emitting layer is mostly reflected to the front side of the PL LCD, thereby increasing the light utilization efficiency thereof. A blue PL quantum dot layer is formed in blue light regions, thereby improving a narrow viewing angle and an orientation in blue pixels. An ultraviolet (UV) filter blocking UV light in the ambient light is formed to protect the light emitting layer from the excitation caused by external light, thereby preventing degradation of contrast caused by an undesired light emission.
Abstract:
Provided are an alkaline earth metal silicate-based phosphor which is a compound represented by Formula 1 below, and a white light-emitting device (LED) including the same. (M11-x-yAxBy)aMgbM2cOdZe Formula 1 wherein, M1 is one selected from the group consisting of Ba, Ca, and Sr; M2 is at least one selected from Si or Ge; A and B are each independently one selected from the group consisting of Eu, Ce, Mn, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Bi, Sn, and Sb; Z is at least one selected from the group consisting of a monovalent or divalent element, H, and N; and 0
Abstract:
Disclosed herein are a metal hydroxy carbonate nanoparticle-coated phosphor and a preparation method thereof. The phosphor coated with metal hydroxy carbonate nanoparticles exhibit improved thermal stability and an increased luminance lifespan, when applied to display devices, e.g., PDPs and lamps.