Abstract:
This invention relates to luminescent materials for ultraviolet light or visible light excitation containing lead and/or copper doped chemical compounds. The luminescent material is composed of one or more than one compounds of aluminate type, silicate type, antimonate type, germanate/or germanate- silicate type, and/or phosphate type. Accordingly, the present invention is a good possibility to substitute earth alkaline ions by lead and copper for a shifting of the emission bands to longer or shorter wave length, respectively. Luminescent compounds containing copper and/or lead with improved luminescent properties and also with improved stability against water, humidity as well as other polar solvents are provided. The present invention is to provide lead and/or copper doped luminescent compounds, which has high color temperature range about 2,00OK to 8,000K or 10,000K and CRI over 90.
Abstract:
Fluorescent or phosphorescent nanoparticles, fluorescent or phosphorescent magnetic nanoparticles, combustion-based methods for their synthesis, and methods to flanctionalize them are described. The methods provided by the invention are simplified, efficient and cost effective as compared to prior art methods. The resulting fluorescent or phosphorescent nanoparticles have reduced tendancy toward aggregation, and diminished need for postmanufacturing processing steps. The particles may be manufactured with combinations of lanthanides so as to absorb and emit light over a variety of wavelengths.
Abstract:
In some embodiments, a composition comprises a bisphenol-A polycarbonate, wherein a molded article of the bisphenol-A polycarbonate has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925. In some embodiments, light emitting device comprises: a lighting element located in a housing. The housing is formed from a plastic composition comprising: the polycarbonate composition and a conversion material. After the conversion material has been exposed to an excitation source, the conversion material has a luminescence lifetime of less than 10-4 seconds when the excitation source is removed
Abstract:
本发明公开了一种氮化物红色发光材料、包括其的发光件以及发光器件。该发光材料的通式为:M a (Al,B) b Si c N d O e :Eu m ,R n ,其中M代表碱土金属元素Mg、Ca、Sr、Ba、Zn中的至少一种;R为稀土元素Y、La、Ce、Gd、Lu中的至少一种;且0.9≤a
Abstract:
The present invention relates to a fluorescent material, a light-emitting device, a planar light-source device, a display device and a lighting device; and provided is a fluorescent material which has an alpha type Si3N4 crystal structure and comprises an oxynitride represented by the compositional formula CaxEuyMzSi12-(m+n)Aln+mOnN16-n, where M is at least one element selected from the group consisting of Sr, Lu, La and Ba, and where 0.5 = x = 1.1, 0.00005 = y = 0.09, 1.0 = m = 3.6, 0.001 = n = 0.2 and 0.00001 = z = 0.1.
Abstract translation:荧光材料,发光装置,平面光源装置,显示装置和照明装置技术领域本发明涉及荧光材料,发光装置,平面光源装置,显示装置和照明装置。 并提供具有α型Si 3 N 4晶体结构并包含由组成式CaxEuyMzSi12-(m + n)Aln + mOnN16-n表示的氧氮化物的荧光材料,其中M是选自Sr ,Lu,La和Ba,其中0.5 = x = 1.1,0.00005 = y = 0.09,1.0 = m = 3.6,0.001 = n = 0.2和0.00001 = z = 0.1。
Abstract:
Described herein are techniques for authenticating and identifying objects by detecting markings through turbid materials. In one embodiment, a container includes a substrate having an outer surface and an inner surface and including a turbid material. The container also includes a marking adjacent to the inner surface and including a luminescent material that exhibits photoluminescence in response to incident light directed on the outer surface. The photoluminescence has a quantum efficiency of at least 20 percent and a peak emission wavelength in the near infrared range.
Abstract:
The invention relates to a gas discharge lamp for dielectrically impeded discharges, which gas discharge lamp is provided with a discharge vessel filled with a gas filling, which discharge vessel comprises at least a wall of a dielectric material and at least a wall having a surface which is at least partly transparent to visible radiation and coated with a phosphor layer, which phosphor layer comprises a phosphor having a host lattice, Eu as the activator and a doping D selected from the group formed by Ce , Pr and Tb , and provided with an electrode structure for a dielectrically impeded discharge and means for igniting and maintaining the discharge. The invention also relates to a phosphor comprising a host lattice, Eu as the activator and a doping D selected from the group formed by Ce , Pr and Tb .
Abstract:
The present invention relates to a set of multi-doped cerium-activated scintillation materials of the solid solutions on the basis of the rare earth silicate, comprising lutetium and having compositions represented by the chemical formulas: (Lu2-w-x+2yAwCexSi1-y)1-zMezJjOq and (Lu2-w-x-2yAwCexSi1+y)1-zMezJjOq. The invention is useful for detection of elementary particles and nuclei in high-energy physics, nuclear industry; medicine, Positron Emission Tomography (TOF PET and DOI PET scanners) and Single Photon Emission Computed Tomography (SPECT), Positron Emission Tomography with Magnetic Resonance imaging (PET/MR); X-ray computer fluorography; non-destructive testing of solid state structure, including airport security systems, the Gamma-ray systems for the inspection of trucks and cargo containers.
Abstract:
The present invention relates to a set of multi-doped cerium-activated scintillation materials of the solid solutions on the basis of the rare earth silicate, comprising lutetium and having compositions represented by the chemical formulas: (Lu 2-w-x+2y A w Ce x Si 1-y ) 1-z Me z J j O q and (Lu 2-w-x-2y A w Ce x Si 1+y ) 1-z Me z J j O q . The invention is useful for detection of elementary particles and nuclei in high-energy physics, nuclear industry; medicine, Positron Emission Tomography (TOF PET and DOI PET scanners) and Single Photon Emission Computed Tomography (SPECT), Positron Emission Tomography with Magnetic Resonance imaging (PET/MR); X-ray computer fluorography; non-destructive testing of solid state structure, including airport security systems, the Gamma-ray systems for the inspection of trucks and cargo containers.
Abstract translation:本发明涉及一组基于稀土硅酸盐的固溶体的多掺杂铈激活闪烁材料,其包含l并具有由以下化学式表示的组成:(Lu <子> 2-W-X + 2Y 子> A <子>瓦特子> CE <子> X 子>的Si <子> 1-Y 子>)<子> 1-Z Me z j q 和 2-wx-2y 瓦特子> CE <子> X 子>的Si <子> 1 + Y 子>)<子> 1-Z 子>我<子>ž子>Ĵ<子>Ĵ 子> 0 <子> q 子>。 本发明对于高能物理,核工业中的基本粒子和核的检测是有用的; 医学,正电子发射断层扫描(TOF PET和DOI PET扫描仪)和单光子发射计算机断层扫描(SPECT),磁共振成像正电子发射断层扫描(PET / MR); X射线计算机透视; 固态结构的无损检测,包括机场安全系统,用于检查卡车和货物集装箱的γ射线系统。 p>