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| Number | Title | Issue Date |
| 6242687 | Amorphous silicon photovoltaic devices and method of making same A process for producing a thin film semiconductor solar cell, said solar cell at least comprising: a p-type layer, and an n-type layer, which are deposited on carrier material, wherein the composition of the p-type layer, especially the optical band gap a... | 06/05/2001 |
| 6239355 | Solid-state photoelectric device A solid state photovoltaic device is formed on a substrate and includes a photoactive channel layer interposed between a pair of electrodes. The photoactive channel layer includes a first material which absorbs light and operates as a hole carrier. Within... | 05/29/2001 |
| 6239354 | Electrical isolation of component cells in monolithically interconnected modules A monolithically interconnected photovoltaic module having cells which are electrically connected which comprises a substrate, a plurality of cells formed over the substrate, each cell including a primary absorber layer having a light receiving surface an... | 05/29/2001 |
| 6232547 | Photo cell and method of manufacturing such cell by co-valent growth of a phase thereon In a method of manufacturing a solar cell, a phase A is deposited in the form of stacks on an electrically conductive substrate, wherein the stacks are covalently and electrically interconnected and also connected to the substrate, and any spaces between ... | 05/15/2001 |
| 6229084 | Space solar cell A space solar cell includes a back surface electrode formed on a back surface opposite to a light receiving surface of a semiconductor substrate, and a dielectric layer formed between the back surface electrode and the semiconductor substrate. In the spac... | 05/08/2001 |
| 6222117 | Photovoltaic device, manufacturing method of photovoltaic device, photovoltaic device integrated with building material and power-generating apparatus The present invention provides a photovoltaic device being capable of generating a large amount of current even with thin joined semiconductor layers, has a high photoelectric conversion efficiency and can be manufactured inexpensively at a low temperatur... | 04/24/2001 |
| 6211454 | Photovoltaic element A photovoltaic element is provided which comprises a support substrate, a first transparent conductive layer formed on the support substrate, a semiconductor layer stacked in the nip-type thereon, and a second transparent conductive layer formed thereon, ... | 04/03/2001 |
| 6207891 | Columnar-grained polycrystalline solar cell substrate The invention relates to a silicon sheet having columnar grains extending axially through the sheet from one free surface of the sheet to the other free surface. The sheet has an electrical resistivity in the range of 0.1 to 10 ohm-cm.... | 03/27/2001 |
| 6172297 | Solar cell and method for fabrication of a solar cell A solar cell (1) is proposed, which is having at least at one side a semiconductor surface (2), on which edges (3) are formed having flank-like regions (4) running substantially parallel to the substrate normal and on which the electrical conductive conta... | 01/09/2001 |
| 6168968 | Method of fabricating integrated thin film solar cells A method of fabricating an integrated thin film solar cell includes the steps of: forming a transparent conductive electrode layer and an amorphous semiconductor photoelectric conversion layer successively on a light-transmitting substrate; forming a rear... | 01/02/2001 |
| 6166320 | Tandem solar cell A solar cell that is capable of having a thickness optimum for the highest photoelectric conversion efficiency and achieves reduction of carrier recombination loss is provided. For this purpose, a solar cell (10) is formed by stacking a top cell (12) incl... | 12/26/2000 |
| 6162987 | Monolithic interconnected module with a tunnel junction for enhanced electrical and optical performance An improved thermophotovoltaic (TPV) n/p/n device is provided. Monolithic Interconnected Modules (MIMS), semiconductor devices converting infrared radiation to electricity, have been developed with improved electrical and optical performance. The structur... | 12/19/2000 |
| 6150604 | Quantum well thermophotovoltaic energy converter A thermophotovoltaic cell is provided containing strained or lattice-matched quantum wells that have a bandgap smaller than the bandgap of the InGaAs alloy. The alloy is lattice-matched to the substrate. These narrow bandgap quantum wells provide more eff... | 11/21/2000 |
| 6150605 | Photovoltaic cell and manufacturing method thereof A photovoltaic cell has a structure including a first electrode layer, a first photovoltaic layer, an electrically conductive layer, a second photovoltaic layer and a second electrode layer that are successively laminated, wherein the first photovoltaic l... | 11/21/2000 |
| 6147296 | Multi-quantum well tandem solar cell A two-terminal tandem solar cell is provided. The inclusion of thin (few nm-thick) narrow band-gap InGaAs quantum wells in the intrinsic (i) region of the conventional p-i-n GaAs solar cell extends the photo-absorption of the conventional GaInP/GaAs tande... | 11/14/2000 |
| 6130378 | Solar battery The object of the present invention is, in a solar battery where at least an electrolyte and a porous member of an oxide semiconductor retaining a pigment material are provided between a transparent electrode and a counter electrode, to obtain a high conv... | 10/10/2000 |
| 6130380 | Solar cell and fabrication method thereof In a solar cell, a crystal defect layer by ion implantation or an amorphous layer by ion implantation is formed between p type diffusion layers provided in an island-like manner at a side opposite to a light receiving surface of a low concentration p type... | 10/10/2000 |
| 6124545 | Thin film solar cell In a thin-film solar cell having at least a p-type layer, an intrinsic layer of amorphous silicon and an n-type layer (p-i-n structure), the intrinsic layer has on the interface with the p-type layer an intrinsic interlayer with lower hydrogen content and... | 09/26/2000 |
| 6121541 | Monolithic multi-junction solar cells with amorphous silicon and CIS and their alloys Efficient broader spectrum monolithic solar cells are produced by coupling a CIS or CIGS polycrystalline semiconductor to an amorphous silicon semiconductor. Coupling can be accomplished with a n-type conductor, such as cadmium sulfide or microcrystalline... | 09/19/2000 |
| 6096968 | Solar cell with a back-surface field For the simple production of a back surface field it is proposed that a boron-containing diffusion source layer (2) be applied to the rear (RS) of a silicon wafer (1) and boron be driven into the wafer to a depth of about 1 to 5 μm at 900 to 1200° C. Th... | 08/01/2000 |
| 6091021 | Silicon cells made by self-aligned selective-emitter plasma-etchback process Photovoltaic cells and methods for making them are disclosed wherein the metallized grids of the cells are used to mask portions of cell emitter regions to allow selective etching of phosphorus-doped emitter regions. The preferred etchant is SF6 | 07/18/2000 |
| 6084176 | Photoelectric conversion device and solar cell A photoelectric conversion device has a layer of dye-sensitized nanoparticulate semiconductor and a hole transporting layer containing an organic hole transporting agent. The dye-sensitized photoelectric conversion device is fully durable. A solar cell co... | 07/04/2000 |
| 6080928 | Photovoltaic element array and method of fabricating the same An insulating film is formed on a conductive substrate, a conductor film is deposited on the insulating film, and a plurality of first electrodes are formed by forming at least one groove in the conductor film. A transparent layer is so formed as to cover... | 06/27/2000 |
| 6071753 | Method of producing a solar cell A solar cell and a method of producing the same which realizes electrical separation of the p n junction in a simple manner, and a method of producing a semiconductor device a method of producing a semiconductor device in which an electrode is formed by u... | 06/06/2000 |
| 6061977 | Photovoltaic roofing element A photovoltaic device comprises a metal with a smooth surface; a transparent conductive layer formed on the smooth surface; and a photoelectric conversion layer formed on the transparent conductive layer. The transparent conductive layer has an irregular ... | 05/16/2000 |
| 6034321 | Dot-junction photovoltaic cells using high-absorption semiconductors A dot-junction photovoltaic cell using high absorption semi-conductors increases photovoltaic conversion performance of direct band gap semi-conductors by utilizing dot-junction cell geometry. This geometry is applied to highly absorbing materials, includ... | 03/07/2000 |
| 6023020 | Solar cell and method for manufacturing the same A solar cell utilizing a chalcopyrite semiconductor and reducing the density of defects on the junction interface of pn junctions is provided. This solar cell includes a substrate, a back electrode formed on the substrate, a p-type chalcopyrite semiconduc... | 02/08/2000 |
| 6013872 | Directionally solidified, multicrystalline silicon, a process for the production thereof and its use, and solar cells containing this silicon and a process for the production thereof The present invention relates to directionally solidified, arsenic- and/or antimony-containing, multicrystalline silicon, a process for the production thereof and its use, and to solar cells containing this silicon and a process for the production thereof... | 01/11/2000 |
| 5992771 | High voltage generator A high voltage generator is provided for use in applications where current demand is low but a high voltage is required. The generator comprises an array of photosensitive elements, such as an array of photovoltaic elements produced by laser scribing or e... | 11/30/1999 |
| 5990416 | Conductive metal oxide film and method of making The present invention is a method for reducing a dopant in a film of a metal oxide wherein the dopant is reduced and the first metal oxide is substantially not reduced. The method of the present invention relies upon exposing the film to reducing conditio... | 11/23/1999 |
| 5990415 | Multilayer solar cells with bypass diode protection A multilayer solar cell with bypass diodes includes a stack of alternating p and n type semiconductor layers 10, 11, 12, 13, 14 arranged to form a plurality of rectifying photovoltaic junctions 15, 16, 17, 18. Contact is made to underlying layers by way o... | 11/23/1999 |
| 5981868 | Thin-film solar cell comprising thin-film light absorbing layer of chalcopyrite multi-element compound semiconductor A solar cell with a heightened open-circuit voltage and improved junction quality of the interface between an interfacial layer (or buffer layer) and a thin-film light absorbing layer is disclosed. A thin-film solar cell is fabricated on a glass substrate... | 11/09/1999 |
| 5977476 | High efficiency photovoltaic device An N-I-P type photovoltaic device includes a multi-layered body of N-doped semiconductor material which has an amorphous, N doped layer in contact with the amorphous body of intrinsic semiconductor material, and a microcrystalline, N doped layer overlying... | 11/02/1999 |
| 5973260 | Converging type solar cell element The present invention discloses a converging type solar cell element able to restrain recombination of carriers and inflow of carriers into an embankment section and improve photoelectric conversion efficiency. A p+ diffusion layer 16 is forme... | 10/26/1999 |
| 5961741 | Metal semiconductor optical device The present invention provides a metal semiconductor optical device which is capable of thinly uniformly growing a metal film on a semiconductor substrate using a layer functioning as an interface active agent and decreasing the density of interface energ... | 10/05/1999 |
| 5956571 | Solar battery with thin film type of single crystal silicon A solar battery which has thin film type of single crystal silicon, and a method for manufacturing such a solar battery is disclosed. A transparent glass plate is adhered to an upper surface of a silicon substrate, having active regions to transform solar... | 09/21/1999 |
| 5955772 | Heterostructure thermionic coolers A heterostructure thermionic cooler and a method for making thermionic coolers, employing a barrier layer of varying conduction bandedge for n-type material, or varying valence bandedge for p-type material, that is placed between two layers of material. T... | 09/21/1999 |
| 5944913 | High-efficiency solar cell and method for fabrication A high-efficiency 3- or 4-junction solar cell is disclosed with a theoretical AM0 energy conversion efficiency of about 40%. The solar cell includes p-n junctions formed from indium gallium arsenide nitride (InGaAsN), gallium arsenide (GaAs) and indium ga... | 08/31/1999 |
| 5935345 | Process for the production of a photovoltaic material or device, material or device thus obtained, and photocell comprising such a material or device A process for the production of a photovoltaic material or device based on monocrystalline silicon adapted to absorb particularly infrared radiation. A wafer, a slice or a chip region of monocrystalline silicon having a diffusion length greater than the p... | 08/10/1999 |
| 5935344 | Photovoltaic element and manufacturing method thereof A photovoltaic element having improved conversion efficiency and improved light confining property as well as a method of manufacturing the photovoltaic element with superior productivity are provided. The photovoltaic element includes an n type single cr... | 08/10/1999 |
