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7537955 |
Low temperature nano particle preparation and deposition for phase-controlled compound film formation
The present invention is directed to different methods used in the formation of an ink, as well as being directed to the formation of layers used in the fabrication of a solar cell, particularly...
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7468146 |
Metal chalcogenide composite nano-particles and layers therewith
A metal chalcogenide composite nano-particle comprising a metal capable of forming p-type semiconducting chalcogenide nano-particles and a metal capable of forming n-type semiconducting...
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7271333 |
Apparatus and method of production of thin film photovoltaic modules
The present invention relates to light-weight thin-film photovoltaic cells, methods for making cells, modules made from cells, and methods for making modules from cells. The invention teaches a...
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7161083 |
High efficiency solar cells
The present invention relates to improvements in solar cell and solar panel photovoltaic materials which cause the solar cells/panels to operate more efficiently. In particular, the present...
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7087833 |
Nanostructure and nanocomposite based compositions and photovoltaic devices
Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that...
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6884478 |
Semiconductor liquid crystal composition and methods for making the same
Semiconductor liquid crystal compositions and methods for making such compositions are disclosed. One embodiment of the invention is directed to a liquid crystal composition including a solvent and...
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6878871 |
Nanostructure and nanocomposite based compositions and photovoltaic devices
Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that...
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6706959 |
Photovoltaic apparatus and mass-producing apparatus for mass-producing spherical semiconductor particles
A photoelectric conversion element is disposed in each of a plurality of recesses of a support. Light reflected by the inside surface of the recess shines on the photoelectric conversion element....
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6548751 |
Thin film flexible solar cell
A thin-film flexible solar cell built on a plastic substrate comprises a cadmium telluride p-type layer and a cadmium sulfide n-type layer sputter deposited onto a plastic substrate at a...
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6537845 |
Chemical surface deposition of ultra-thin semiconductors
A chemical surface deposition process for forming an ultra-thin semiconducting film of Group IIB-VIA compounds onto a substrate. This process eliminates particulates formed by homogeneous reactions...
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6534704 |
Solar cell
A solar cell includes a first semiconductor layer that is p-type, and a second semiconductor layer that is n-type formed over the first semiconductor layer. The solar cell includes a layer A made...
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6423565 |
Apparatus and processes for the massproduction of photovotaic modules
An apparatus and processes for large scale inline manufacturing of CdTe photovoltaic modules in which all steps, including rapid substrate heating, deposition of CdS, deposition of CdTe, CdCl 2 ...
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6319747 |
Process for producing a thin-film solar module and separating means for use in this process
Process and separating means for the production of a thin film solar module (10) comprising a plurality of solar cells (11) arranged side-by-side on a common substrate (12), which are produced by...
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6291762 |
Dust-proof and weather resistant photovoltaic module and fabricating method thereof
The present invention discloses a dust-proof and weather resistant photovoltaic module, including (a) a front substrate of light transmittable safety glass plate, wherein a photo-catalyst...
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6251701 |
All-vapor processing of p-type tellurium-containing II-VI semiconductor and ohmic contacts thereof
An all dry method for producing solar cells is provided comprising first heat-annealing a II-VI semiconductor; enhancing the conductivity and grain size of the annealed layer; modifying the surface...
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6137048 |
Process for fabricating polycrystalline semiconductor thin-film solar cells, and cells produced thereby
A novel, simplified method for fabricating a thin-film semiconductor heterojunction photovoltaic device includes initial steps of depositing a layer of cadmium stannate and a layer of zinc stannate...
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6107562 |
Semiconductor thin film, method for manufacturing the same, and solar cell using the same
A semiconductor thin film comprises an n-type compound semiconductor layer including at least one element from each of groups Ib, IIIb, VIb and II. A solar cell using this semiconductor thin film...
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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...
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6072116 |
Thermophotovoltaic conversion using selective infrared line emitters and large band gap photovoltaic devices
Efficient thermophotovoltaic conversion can be performed using photovoltaic devices with a band gap in the 0.75-1.4 electron volt range, and selective infrared emitters chosen from among the rare...
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6028265 |
Optical semiconductor electrode, photoelectric converting device, and photoelectric conversion method
The photo-semiconducting electrode of the present invention comprises a semiconducting substrate, a chemically adsorbed film formed thereon composed of at least one compound selected from the...
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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...
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6015951 |
Photoelectric transfer device
This invention relates to a photoelectric transfer device which comprises a photoelectric transfer element, a cholesteric liquid crystal layer and an ultraviolet cut-off layer, said cholesteric...
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5994642 |
Method for preparing CdTe film and solar cell using the same
A method for forming a CdTe film of good quality by an improved close-spaced sublimation process is disclosed. This method comprises: a step of applying a paste which contains material for CdTe...
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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,...
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5986205 |
Stainless steel sheet and a substrate for a solar cell and manufacturing method thereof
The stainless steel sheet useful as a substrate for non-single crystalline semiconductor solar cells has minute ripples with undulations along a rolling direction, and its surface roughness is...
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5922142 |
Photovoltaic devices comprising cadmium stannate transparent conducting films and method for making
A photovoltaic device having a substrate, a layer of Cd 2 SnO 4 disposed on said substrate as a front contact, a thin film comprising two or more layers of semiconductor materials disposed on...
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5868869 |
Thin film photovoltaic device and process of manufacture
Provided is a thin film photovoltaic device and a method of manufacturing the device. The thin film photovoltaic device comprises a film layer having particles which are smaller than about 30...
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5738731 |
Photovoltaic device
A solar cell comprising: a first junction part having a first conductivity type first semiconductor film and a second conductivity type second semiconductor film formed on an upper surface of...
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5731031 |
Production of films and powders for semiconductor device applications
A process for chemical bath deposition of selenide and sulfide salts as films and powders employable as precursors for the fabrication of solar cell devices. The films and powders include (1) Cu x ...
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5714391 |
Method of manufacturing a compound semiconductor thin film for a photoelectric or solar cell device
This invention relates to a manufacturing method of a compound semiconductor thin film derived from a metal sulfide produced by thermal decomposition of a sulfur-containing metal organic compound,...
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5712187 |
Variable temperature semiconductor film deposition
A method of depositing a semiconductor material on a substrate. The method sequentially comprises (a) providing the semiconductor material in a depositable state such as a vapor for deposition on...
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5557146 |
Ohmic contact using binder paste with semiconductor material dispersed therein
An ohmically conductive contact for a thin film p-type semiconductor compound formed of at least one of the metal elements of Class IIB of the Periodic Table of Elements and at least one of the...
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5541118 |
Process for producing cadmium sulfide on a cadmium telluride surface
A process for producing a layer of cadmium sulfide on a cadmium telluride surface to be employed in a photovoltaic device. The process comprises providing a cadmium telluride surface which is...
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5538903 |
Method of manufacturing solar cell
A method of manufacturing a solar cell, comprising the steps of forming a layer of n-type compound semiconductor, a layer of p-type compound semiconductor, and an electrode layer on a glass...
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5536333 |
Process for making photovoltaic devices and resultant product
A process and apparatus (70) for making a large area photovoltaic device (22) that is capable of generating low cost electrical power. The apparatus (70) for performing the process includes an...
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5501744 |
Photovoltaic cell having a p-type polycrystalline layer with large crystals
A photovoltaic cell has an n-type polycrystalline layer and a p-type polycrystalline layer adjoining the n-type polycrystalline layer to form a photovoltaic junction. The p-type polycrystalline...
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5500056 |
Solar cell containing low melting point glass layer
A solar cell includes a compound semiconductor, which is a laminated film having compound semiconductor layers, and low melting point glass. When the solar cell is heated by fire, the low melting...
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5484736 |
Process for producing large grain cadmium telluride
A process for producing a cadmium telluride polycrystalline film having grain sizes greater than about 20 μm. The process comprises providing a substrate upon which cadmium telluride can be...
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5472910 |
Process for making OHMIC contacts and photovoltaic cell with ohmic contact
Ohmic contacts to p-type IIB/VIB semiconductor are obtained by a process which includes the step of depositing a viscous liquid containing a Group IB metal salt on a surface of a semiconductor,...
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5436204 |
Recrystallization method to selenization of thin-film Cu(In,Ga)Se.sub.2 for semiconductor device applications
A process for fabricating slightly Cu-poor thin-films of Cu(In,Ga)Se 2 on a substrate for semiconductor device applications includes the steps of forming initially a slightly Cu-rich, phase...
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5411601 |
Substrate for solar cell and solar cell employing the substrate
A solar cell is constructed using a heterojunction formed by layering an n-type compound semiconductor followed by a p-type compound semiconductor on an insulator layer containing titanium oxide...
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5393675 |
Process for RF sputtering of cadmium telluride photovoltaic cell
A thin film photovoltaic cell having a semiconductor layer of cadmium sulfide and a semiconductor layer of cadmium telluride is manufactured in a process in which the cadmium sulfide and the...
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5356839 |
Enhanced quality thin film Cu(In,Ga)Se.sub.2 for semiconductor device applications by vapor-phase recrystallization
Enhanced quality thin films of Cu w (In,Ga y )Se z for semiconductor device applications are fabricated by initially forming a Cu-rich, phase-separated compound mixture comprising Cu(In,Ga):Cu x ...
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5320736 |
Method to electrochemically deposit compound semiconductors
A method to electrochemically deposit semiconductors and for the electrochemical formation of epitaxial thin-film, single-crystalline compound semiconductors comprising alternating...
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5304499 |
Methods of making pn CdTe/CdS thin film solar cells
A method of making pn CdTe/CdS thin film solar cells, in which a transparent TCO layer is deposited as a front contact on a transparent substrate in the form of inexpensive soda-lime glass, and is...
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5279678 |
Photovoltaic cell with thin CS layer
An improved photovoltaic panel and method of forming a photovoltaic panel are disclosed for producing a high efficiency CdS/CdTe photovoltaic cell. The photovoltaic panel of the present invention...
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5261968 |
Photovoltaic cell and method
An improved photovoltaic panel and method of forming a photovoltaic panel are disclosed for producing a high efficiency CdS/CdTe photovoltaic cell. The photovoltaic panel of the present invention...
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5141564 |
Mixed ternary heterojunction solar cell
A thin film heterojunction solar cell and a method of making it has a p-type layer of mixed ternary I-III-VI 2 semiconductor material in contact with an n-type layer of mixed binary II-VI...
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5112410 |
Cadmium zinc sulfide by solution growth
A process for depositing thin layers of a II-VI compound cadmium zinc sulfide (CdZnS) by an aqueous solution growth technique with quality suitable for high efficiency photovoltaic or other devices...
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5078804 |
I-III-VI.sub.2 based solar cell utilizing the structure CuInGaSe.sub.2 CdZnS/ZnO
A thin film I-III-VI 2 based solar cell having a first layer of copper indium gallium selenide, a second layer of cadmium zinc sulfide, a double layer of zinc oxide, and a metallization structure...
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