摘要:
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.
摘要:
A semiconductor structure is described, including a semiconductor substrate of one conductivity type; and an amorphous semiconductor layer disposed on at least one of its surfaces. 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. Photovoltaic devices which include such a structure are also disclosed, as are solar modules made from one or more of the devices. Related methods are also described.
摘要:
A method for fabricating a solar cell is provided. The method includes positioning a silicon substrate having a front surface and an opposing back surface in a plasma reaction chamber. A high-efficiency emitter structure is formed on the first surface of the silicon substrate. A back surface passivated structure is formed on the second surface of the silicon substrate.
摘要:
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.
摘要:
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.
摘要:
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.
摘要翻译: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。
摘要:
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.
摘要:
A solar cell having at least one hole blocking layer and at least one electron blocking layer, and methods of fabricating such devices. Specifically, a hole blocking layer is disposed between a first electrode of the solar cell and the active layer. Further, an electron blocking layer is disposed between a second electrode and the active layer. The solar cell may be formed by fabricating an anode component and a cathode component and laminating the anode component and the cathode component together.
摘要:
A phosphor comprises a borate of terbium, at least an alkaline-earth metal, and at least a Group-3 metal. In one embodiment, the phosphor has a formula of A3(D1-xTbx)3(BO3)5; wherein A is at least an alkaline-earth metal selected from the group consisting of calcium, barium, strontium, and magnesium; D is at least a Group-3 metal selected from the group consisting of lanthanum, scandium, and yttrium; and 0
摘要:
An adaptable imaging assembly is provided. The adaptable imaging assembly includes a free-standing phosphor film configured to receive incident radiation and to emit corresponding optical signals. An electronic device is coupled to the free-standing phosphor film. The electronic device is configured to receive the optical signals from the free-standing phosphor film and to generate an imaging signal. A free-standing phosphor film is also provided and includes x-ray phosphor particles dispersed in a silicone binder. A method for inspecting a component is also provided and includes exposing the component and a free-standing phosphor film to radiation, generating corresponding optical signals with the free standing phosphor film, receiving the optical signals with an electronic device coupled to the free-standing phosphor film and generating an imaging signal using the electronic device.