Abstract:
Some embodiments of the present invention are directed toward nanocrystalline oxide-based phosphor materials, and methods for making same. Typically, such methods comprise a steric entrapment route for converting precursors into such phosphor material. In some embodiments, the nanocrystalline oxide-based phosphor materials are quantum splitting phosphors. In some or other embodiments, such nanocrystalline oxide based phosphor materials provide reduced scattering, leading to greater efficiency, when used in lighting applications.
Abstract:
A photoelectrolysis cell is described herein. The cell includes a photoelectrode based on a material having the general formula (Ln1−xMx)(Nb1−yTay)O1+xN2−x. Ln is at least one lanthanide element; M is at least one alkaline earth metal; 0≦x≦0.99; and 0≦y≦1. The photoelectrolysis cell further includes a counter-electrode formed from at least one metal or metallic alloy. An electrolyte which is in contact with both the photoelectrode and the counter-electrode is another component of the cell, along with a means for collecting hydrogen produced by the cell. A related process for producing hydrogen in a photoelectrolysis cell is also described.
Abstract translation:本文描述了光电解池。 电池包括基于具有通式(Ln 1-x M x x)(Nb 1-y x M x))的材料的光电极(Nb 1-y Ta) > y 1 + x N 2-x N 2。 Ln是至少一种镧系元素; M是至少一种碱土金属; 0 <= x <= 0.99; 0 <= y <= 1。 光电解池还包括由至少一种金属或金属合金形成的对电极。 与光电极和对电极接触的电解质是电池的另一个组分,以及用于收集由电池产生的氢的装置。 还描述了在光电解池中产生氢的相关方法。
Abstract:
Phosphor compositions having the formula EueMmAaGgQqNnXx, where M is at least one of Be, Mg, Ca, Sr, Ba, Cd, Sn, Pb or Zn; A is at least one of B, Al, Ga, In, Bi, Sc, Y, La or a rare earth element other than Eu; G is at least one of Si or Ge; Q is at least one of O, S, and Se; X is at least one of F, Cl, Br and I; 0
Abstract:
A phosphor comprises a material having a formula of AMgD10O17:Eu2+,Mn2+, wherein A is at least an alkaline-earth metal selected from the group consisting of Ba, Sr, Ca, and combinations thereof; and D is at least a metal selected from the group consisting of Al, Ga, In, and combinations thereof; wherein Eu2+ ions are present in an amount from about 10 to about 50 atom percent of a combined quantity of A ions and europium ions, and Mn2+ ions are present in an amount from about 5 to about 30 atom percent of a combined quantity of magnesium ions and manganese ions. The phosphor is used alone or in conjunction with other phosphors to convert UV/blue radiation emitted by a source, such as an LED or a gas discharge device, to visible light.
Abstract:
Phosphor compositions having the formulas (Tb1-x-y-z-wYxGdyLuzCew)3MrAls-rO12+δ, where M is selected from Sc, In, Ga, Zn, or Mg, and where 0
Abstract translation:具有以下通式的荧光体组合物(Tb 1-xy z w Y y X x Y z) 其中M选自Sc,In和/或其中M选自Sc,In ,Ga,Zn或Mg,并且其中0 3 +,A选自Mg,Ca,Sr或Ba,B选自Mg和Zn,其中0 <= p <= 3,0 <= q <= 3,2.5 < = z <= 3.5,0 <= x <= 1,0 <= y <= 0.3,-1.5 <=δ= 1.5; AND(CA 1-xyz)Sr x Si 3 Z 3(3)(3) Sc Lu Lu Lu Lu Lu Lu Lu Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge Ge 其中D是Mg或Zn,0≤x≤1,0<= y <1,0
Abstract:
A phosphor having the formula Na2(Ln1-y-zCeyTbz)2B2O7 wherein Ln is selected from the group consisting of La, Y, Gd, Lu, Sc and combinations thereof and wherein y=0.01-0.3 and z=0.0-0.3. The phosphor is suitable for use in a white-light emitting device including a UV/blue semiconductor light source having a peak emission from about 250 to about 550 nm and a phosphor blend including a blue emitting phosphor, a red emitting phosphor and a green emitting phosphor having the above described formula.
Abstract:
Light emitting devices including backlights having a light source and a phosphor material including a complex fluoride phosphor activated with Mn4+ which may include at least one of (A) A2[MF5]:Mn4+; where A is selected from Li, Na, K, Rb, Cs, NH4, and combinations thereof; and where M is selected from Al, Ga, In, or combinations thereof; (B) A3[MF6]:Mn4+, where A is selected from Li, Na, K, Rb, Cs, NH4, and combinations thereof; and where M is selected from Al, Ga, In, or combinations thereof; (C) Zn2[MF7]:Mn4+, where M is selected from Al, Ga, In, or combinations thereof; and (D) A[In2F7]:Mn4+ where A is selected from Li, Na, K, Rb, Cs, NH4, or combinations thereof.
Abstract translation:包括具有光源的背光源和包括由Mn 4+激活的复合氟化物荧光体的荧光体材料的发光器件,其可以包括(A)A 2 N 2 O 3, MF <5>:Mn 4+ 其中A选自Li,Na,K,Rb,Cs,NH 4,及其组合; 并且其中M选自Al,Ga,In或其组合; (B)A 3 3 [MF 6]:Mn 4+其中A选自Li,Na,K,Rb,Cs, NH 4,及其组合; 并且其中M选自Al,Ga,In或其组合; (C)Zn 2 [MF 7]:Mn 4+其中M选自Al,Ga,In或其组合; 其中A选自Li,Na,K,Rb,Cs(Ⅳ),(D)A [In 2 F F Cs] ,NH 4或它们的组合。
Abstract:
There is provided yellow and red illumination systems, including a semiconductor light emitter, and a luminescent material. The systems have an emission falling within the respective ITE red and yellow color bins having specified color coordinates on the CIE chromaticity diagram. The luminescent material may include one or more phosphors. The illumination systems may be used as the red and yellow lights of a traffic light or an automotive display.