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7468146 |
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 chalcogenide nano-particles, wherein at least one o...
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7271333 |
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 manner in which individual cells may be bon...
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7161083 |
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 invention focuses primarily on matching or modi...
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7087833 |
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 comprise core-shell nanostructures and/or...
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6884478 |
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 semiconductor particles in the solvent....
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6878871 |
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 comprise core-shell nanostructures and/or...
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6706959 |
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. The photoelectric conversion element has ...
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6548751 |
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 temperature sufficiently low to avoid damaging or ...
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6537845 |
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 in bath, dramatically increases the uti...
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6534704 |
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 of a semiconductor different from the fir...
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6423565 |
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 treatment, and ohmic contact formation, ar...
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6319747 |
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 employing a plurality of layer deposition...
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6291762 |
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 composition is applied to the safety glass plate;...
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6251701 |
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 and depositing a tellurium layer onto t...
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6137048 |
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 on a transparent substrate, both by rad...
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6107562 |
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 comprises a substrate and a rear electrod...
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6084176 |
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 durabl...
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6072116 |
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 earth oxides which are thermally stimulat...
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6028265 |
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 compounds represented by the formulas: formul...
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6025252 |
In order to easily and accurately manufacture a micromachine comprising a member which is made of a single-crystalline material and having a complicated structure, an uppermost layer (1104) of a single-crystalline Si substrate (1102) who...
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6023020 |
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 chalc...
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6015951 |
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 liquid crystal layer being arranged between...
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5994642 |
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 semiconductor on a supporting member, there...
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5990415 |
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 underlyi...
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5986205 |
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 controlled in the range of R z 0.3-1.4 μm ...
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5955772 |
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 lay...
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5922142 |
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 said layer of Cd 2 SnO 4 , and an electric...
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5868869 |
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 microns in size held in an electrically insul...
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5738731 |
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 said first semiconductor film; and a se...
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5731031 |
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 Se n , wherein x=1-2 and n=1-3; (2) Cu ...
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5714391 |
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, the compound containing at least one fun...
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5712187 |
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 the substrate; (b) depositing the semicon...
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5674325 |
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 microns in size held in an electrically insul...
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5557146 |
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 non-metal elements of Class VIA of the Peri...
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5541118 |
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 exposed to a hydrogen sulfide plasma at an ex...
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5538903 |
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 substrate, wherein at least one of said steps o...
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5536333 |
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 enclosure (126) providing a controlled envir...
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5501744 |
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 layer comprises a substantially planar laye...
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5500056 |
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 point glass melts to seal the compound se...
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5484736 |
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 deposited and placing that substrate within a ...
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5472910 |
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, substantially free of oxide groups, heating...
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5470397 |
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 enclosure (126) providing a controlled envir...
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5436204 |
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 separated, mixture of Cu(In,Ga)Se 2 :Cu x Se...
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5411601 |
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 which has been formed on one side of a gla...
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5393675 |
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 cadmium telluride are deposited onto a conduct...
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5356839 |
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 Se on a substrate to form a large-grain...
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5320736 |
A method to electrochemically deposit semiconductors and for the electrochemical formation of epitaxial thin-film, single-crystalline compound semiconductors comprising alternating electrodeposition of atomic layers of selected pairs of ...
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5304499 |
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 preferably provided with an ultra-thin i...
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5279678 |
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 is initially formed with a substantially ...
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5261968 |
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 is initially formed with a substantially ...
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