Abstract:
A fluorescent lamp including a phosphor layer including (Y1-x-yGdx)AlO3:EU3+y, wherein 0.4≦x≦0.7 and 0≦y≦0.1, and at least one of each of a green and blue emitting phosphor. The resulting lamp will exhibit a white light having a color rendering index of preferably 90 or higher with a correlated color temperature of from 2500 to 10000 Kelvin. The use of (Y1-x-yGdx)AlO3:Eu3+y in phosphor blends of lamps results in high CRI light sources with increased stability and acceptable lumen maintenance over, the course of the lamp life.
Abstract:
In one embodiment the present invention discloses a method for making a first layer in an electroactive device comprising the steps of (i) preparing a composition by mixing at least one adhesion promoter material and at least one electroactive material; and (ii) depositing said composition onto a second electroactive layer of said electroactive device; and (iii) optionally further depositing a third electroactive layer onto the surface of said first layer opposite the second layer, wherein said composition enables adhesion between said first layer and said second layer or between said first layer and said third layer, or between said first layer and both said second layer and said third layer. In another embodiment the present invention discloses a method for improving adhesion between layers in an electroactive device comprising the steps of (i) depositing a surface treatment composition comprising at least one adhesion promoter material on at least one surface of a first electroactive layer, and (ii) depositing a second electroactive layer onto the surface of said first layer comprising said adhesion promoter; wherein said composition enables adhesion between said first layer and said second layer of said electroactive device. Electroactive layers and electroactive devices comprising said layers are also disclosed, as well as methods to make said electroactive devices. In another embodiment adhesion promoters comprising 9,9-disubstituted fluorenyl compounds are disclosed, as well as methods for making the same.
Abstract:
A phosphor blend comprises at least two phosphors each selected from one of the groups of phosphors that absorb UV electromagnetic radiation and emit in a region of visible light. The phosphor blend can be applied to a discharge gas radiation source to produce light sources having high color rendering index. A phosphor blend is advantageously includes the phosphor (Tb,Y,Lu,La,Gd)x(Al,Ga)yO12:Ce3+, wherein x is in the range from about 2.8 to and including 3 and is in the range from about 4 to and including 5.
Abstract translation:磷光体共混物包括至少两种磷光体,每种磷光体选自吸收UV电磁辐射并在可见光区域发射的磷光体组之一。 磷光体共混物可以应用于放电气体辐射源以产生具有高显色指数的光源。 磷光体共混物有利地包括磷光体(Tb,Y,Lu,La,Gd)x(Al,Ga)y O 2 O 12: Ce 3+,其中x在约2.8至3之间,并且在约4至5的范围内。
Abstract:
A semiconductor structure is described, including a semiconductor substrate and an amorphous semiconductor layer disposed on the front side of the semiconductor substrate, wherein the amorphous semiconductor layer is compositionally graded through its depth, from substantially intrinsic at the interface with the substrate, to substantially conductive at the opposite side. A plurality of front contacts are disposed on the backside of the substrate, and a plurality of vias formed through the substrate, wherein the plurality of vias are filled with a conductive material configured to electrically couple the amorphous semiconductor layer to one of the plurality of front contacts. Back contacts are disposed such that they are interdigitated with the front contacts. Related methods are also described.
Abstract:
A composition for forming polymer electrolyte and a lithium secondary battery employing the polymer electrolyte prepared using the composition are provided. The composition for forming polymer solid electrolyte having a polymer resin, a plasticizer, a filler and a solvent, wherein the filler is synthetic zeolite having an affinity for an organic solvent or moisture. Therefore, the mechanical strength and ionic conductivity can be improved by adding synthetic zeolite as a filler when forming polymer electrolyte. Also, use of such polymer electrolyte makes it possible to prepare lithium secondary batteries having good high-current discharge characteristics and excellent discharge capacity characteristics even under repeated charge/discharge conditions.
Abstract:
A photovoltaic device comprising a photovoltaic cell is provided. The photovoltaic cell includes an emitter layer comprising a crystalline semiconductor material and a lightly doped crystalline substrate disposed adjacent the emitter layer. The lightly doped crystalline substrate and the emitter layer are oppositely doped. Further, the photovoltaic device includes a back surface passivated structure coupled to the photovoltaic cell. The structure includes a highly doped back surface field layer disposed adjacent the lightly doped crystalline substrate. The highly doped back surface field layer includes an amorphous or a microcrystalline semiconductor material, wherein the highly doped back surface field layer and the lightly doped crystalline substrate are similarly doped, and wherein a doping level of the highly doped back surface field layer is higher than a doping level of the lightly doped crystalline substrate. Additionally, the structure may also include an intrinsic back surface passivated layer disposed adjacent the lightly doped crystalline substrate, where the intrinsic back surface passivated layer includes an amorphous or a microcrystalline semiconductor material.
Abstract:
A conformable air purification system and methods generally includes optically coupling an active coating comprising a photocatalyst material with a flexible organic light emitting device (OLED) and configuring the flexible media into a desired shape that defines the fluid passageways of then system. The organic light emitting device can be selected to emit light in the visible range when low band gap photocatalyst materials are employed.
Abstract:
A scintillator composition of a halide perovskite material of at least one ABX3 type halide perovskite, at least one activator for the matrix material and optionally at least one charge compensator to assist the incorporation of the activator in the perovskite lattice and any reaction products thereof. Radiation detectors that use the scintillators are also described, as are related methods for detecting high-energy radiation and method of producing an activated halide-perovskite based scintillator crystal.
Abstract:
In one embodiment the present invention discloses a method for making a first layer in an electroactive device comprising the steps of (i) preparing a composition by mixing at least one adhesion promoter material and at least one electroactive material; and (ii) depositing said composition onto a second electroactive layer of said electroactive device; and (iii) optionally further depositing a third electroactive layer onto the surface of said first layer opposite the second layer, wherein said composition enables adhesion between said first layer and said second layer or between said first layer and said third layer, or between said first layer and both said second layer and said third layer. In another embodiment the present invention discloses a method for improving adhesion between layers in an electroactive device comprising the steps of (i) depositing a surface treatment composition comprising at least one adhesion promoter material on at least one surface of a first electroactive layer, and (ii) depositing a second electroactive layer onto the surface of said first layer comprising said adhesion promoter; wherein said composition enables adhesion between said first layer and said second layer of said electroactive device. Electroactive layers and electroactive devices comprising said layers are also disclosed, as well as methods to make said electroactive devices. In another embodiment adhesion promoters comprising 9,9-disubstituted fluorenyl compounds are disclosed, as well as methods for making the same.
Abstract:
A boron-containing phosphor comprises a material having a formula of AD1−xEuxB9O16, wherein A is an element selected from the group consisting of Ba, Sr, Ca, Mg, and combinations thereof; D is at least an element selected from the group consisting of rare-earth metals other than europium; and x is in the range from about 0.005 to about 0.5. The phosphor is used in a blend with other phosphors in a light source for generating visible light with a high color rendering index.
Abstract translation:含硼磷光体包括具有下列化学式的材料:AD 1-x Eu x x 9 O>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 其中A是选自Ba,Sr,Ca,Mg及其组合的元素; D是选自铕以外的稀土类金属中的至少一种元素; x在约0.005至约0.5的范围内。 荧光体用于与光源中的其它磷光体的混合物,用于产生具有高显色指数的可见光。