Abstract:
Provided, among other things, is a phosphor according to the formula: A . a phosphor according to the following formula M f Si a A1 b B c NdO g :Rε,Z (A); or B . a phosphor according to the following formula Msn:Rγ,Z 2 (B) wherein Msn is a silicon nitride or silicon nitride-oxide of one of: (M 1 x M 2 1-x ) (Si 5 N 8 ):Rγ, Z 2 (i) Lsno:Rγ,Z 2 (ii) Ln 2 Si 3_Z AI Z O 3+Z N 4-Z :Rγ,Z 2 (iii) Lsno is a lanthanide silicon nitride-oxide of one of: Ln(SiO 4 )N3:Rγ,Z 2 (iia) LnSi 2 O 7 N 2 :Rγ, Z 2 (iib) LnSiO 2 N:Rγ, Z 2 (iic) Ln 2 SiO 3 N 4 :Rγ, Z 2 (iid) Ln 2 Si 8 O 4 N 11 :Rγ,Z 2 (iie); or M 3 n Si 3-y BO 3+y N 4-y :Rδ, Z 3 (C); or M f1 4 Si a1 Al b1 B c1 N d1-e1-g1 O g1 D e1 :Rϕ, Z 4 (D) wherein D is P, Bi, Sb, As or a mixture thereof, and Rε, Rγ, Rδ and Rϕ are activators, and M, M', M 2 , M 3 and M 4 are cations.
Abstract:
A compound for non-linear optics for use at 350 nm and below. The compound includes a material for non-linear optics comprising A x M (1-x) Al 3 B 4 O 12 . x is larger than or equal to zero and smaller than or equal to 0.1, A is selected from a group consisting of Sc, Y, La, Yb, and Lu, and M is selected from a group consisting of Sc, Y, La, Yb, and Lu. The compound is free from a molybdenum bearing impurity of at least 1000 parts per million.
Abstract translation:用于350 nm及以下的非线性光学元件的复合物。 该化合物包括用于包括AxM(1-x)Al 3 B 4 O 12的非线性光学材料。 x大于或等于零且小于或等于0.1,A选自Sc,Y,La,Yb和Lu,M选自Sc,Y,La, Yb和Lu。 该化合物不含至少1000ppm的含钼杂质。
Abstract:
The present invention is directed to color electroluminescent displays comprising a novel sub-pixel structure and method for making the same. The sub-pixel structure has an electroluminescent phosphor, which emits blue light, and a photoluminescent phosphor, which emits at least one other color as a result of absorption of the blue light. The invention is also directed to novel photoluminescent phosphor materials.
Abstract:
The present invention relates to the field of forehearth frits, pearls, and/or concentrates for use in glass compositions. In particular, the present invention provides a system of forehearth frits, pearls, and/or concentrates that is capable of imparting a fluorescent effect to a glass composition by adding a fluorescent glass frit, pearl or concentrate in the forehearth of a glass furnace, to form fluorescent glass and a method of using the fluorescent system of forehearth frits, pearls, and/or concentrates.
Abstract:
Embodiments include luminescent materials and associated production methods. The material includes a crystal borate having a first substitutable element and a second substitutable element, one or more rare earth ions substituted for the first substitutable element, and chromium substituted for the second substitutable element. The one or more rare earth ions are selected from a group consisting of neodymium and ytterbium. The material also may include a medium within which particles of the borate are incorporated. The medium, with the luminescent material particles, may form a security feature of an article. Embodiments of methods for identifying whether such a luminescent material is incorporated with an article include exposing a portion of the article to excitation in a chromium absorption band, and determining whether a detected emission produced by the article as a result of the excitation indicates an ytterbium emission after termination of the exposing step.
Abstract:
A luminophore composition comprising amorphous aluminoborate powders is disclosed. The composition is obtainable by preparing an aluminoborate resin by a wet chemical route based on precursors solutions substantially free from monovalent and divalent cations; drying the resin to obtain a solid; grinding the solid to obtain a powder; pyrolyzing the powder at a pyrolysis temperature lower than the crystallization temperature of the composition; and calcinating the powder so pyrolyzed at a calcination temperature lower than the crystallization temperature of the composition. Furthermore, a process for the preparation of said composition is disclosed. The composition is particularly suitable for use in solid-state lighting, and for example for converting UV light into warm white visible light.
Abstract:
The invention relates to a method for producing rare earth borates and to the use of said borates in luminescence. The production method is characterized in that it comprises the following steps: mixing boric acid and a rare earth salt; reacting the resulting mixture with a carbonate or a bicarbonate; and calcinating the resulting precipitate.
Abstract:
Luminescent borates, luminescent materials, and articles incorporating such borates are provided herein. An embodiment of a luminescent borate includes a host borate that has a B 9 O 16 -comprising crystal lattice. Neodymium and/or ytterbium are present within the host borate, and one or more substitutable elements are optionally present along with the neodymium and/or ytterbium within the host borate. The one or more substitutable elements are different from neodymium and ytterbium.