Matches 101 - 150 out of 283 < 1 2 3 4 5 6 >
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4916035 Photoelectrochemical cells having functions as a solar cell and a secondary cell  
Photoelectrochemical cells comprising a positive electrode comprised of an n-type conductive semiconductor and a compound capable of reversibly intercalating or deintercalating metal atoms or ions,...
4793910 Multielectrode photoelectrochemical cell for unassisted photocatalysis and photosynthesis  
A multielectrode photoelectrochemical cell in which at least contains two bipolar electrode panels for photoelectrochemical reactions such as water photolysis to produce H 2 O 2 without external...
4790916 One-unit photo-activated electrolyzer  
A photo-activated semiconductor device is adapted to be exposed to light energy. Two physically separated electrocatalysts are placed in electrical contact with the photo-activated semiconductor...
4772940 Polymer having isothianaphthene structure and electrochromic display  
An electrochromic display device is provided in which a high molecular weight conductive membrane is formed on a conductive, transparent base, and an opposing electrode is arranged thereunder via a...
4764439 Photoelectrochemical cell  
A method for converting solar energy to electricity is provided using solid-liquid interface photoelectrochemical cells wherein the liquid phase comprises a nonaqueous solvent, an electrolyte...
4734168 Method of making n-silicon electrodes  
The photoelectrolysis of water by solar radiation to produce hydrogen and oxygen is achieved using semiconductor electrodes. The cell comprises a p-silicon wafer treated with catalyst as...
4687881 Solar cells based on CuInS.sub.2  
Solar cells with photoanodes based on CuInS 2 semiconductor material produced by specially adapted methods, permit the transformation of light into electric energy with a good efficiency. The...
4663004 Electrochemical conversion using alternating current and semiconductor electrodes  
A method for electrochemical converting reactants to products includes cycling alternating electrical current to an electrode containing a non-degenerate semiconductor material in an...
4658087 Photoelectrodes for photoelectrochemical cell devices  
This invention is concerned with producing glasses in the As-Se-Cu field exhibiting properties rendering them eminently suitable for photoelectrodes of photoelectrochemical devices. The glasses...
4656103 Liquid junction photoelectrodes using amorphous silicon-based thin film semiconductor  
An amorphous silicon semiconductor alloy having multiple layers is used to form a photoelectrode (either a photoanode or a photocathode) for use in a photoelectrochemical cell for the...
4650554 Photoelectrolysis method and means  
An integrated photoelectrolytic apparatus for catalyzing the photodecomposition of a liquid electrolyte, such as water, into its gaseous decomposition products includes a photovoltaic section...
4650558 Semiconductor electrode with improved photostability characteristics  
An electrode is disclosed for use in photoelectrochemical cells having an electrolyte which includes an aqueous constituent. The electrode includes a semiconductor and a hydrophobic film disposed...
4649227 Photoactive pyrite layer and process for making and using same  
Photoactive pyrite layers, whose preparation and use represent a commercially highly interesting alternative to materials hitherto in common use. The semiconductor material chiefly used until now,...
4647348 Method for production of film-coated silicon semiconductor electrode  
On a silicon semiconductor or a silicon semiconductor having a coating of a noble metal, a polymer film is deposited by immersing the silicon semiconductor or the silicon semiconductor with the...
4643817 Photocell device for evolving hydrogen and oxygen from water  
A photocell device for evolving hydrogen and oxygen from water using solar radiation is formed with a plurality of p-n junctions. A transparent ohmic window is disposed at the p-n junctions to...
4640744 Amorphous carbon electrodes and their use in electrochemical cells  
Amorphous carbon is an electrocatalytically active material which is useful as an electrode component in electrochemical cells.
4637969 Photoelectro-chemical cell for conversion of solar energy to electricity and method of its manufacture  
A double photoelectrochemical cell for converting solar energy directly to electricity. The device in one embodiment has two semiconductors which are separated from each other by a polymer...
4634641 Superlattice photoelectrodes for photoelectrochemical cells  
A superlattice or multiple-quantum-well semiconductor is used as a photoelectrode in a photoelectrochemical process for converting solar energy into useful fuels or chemicals. The quantum minibands...
4628013 Photoelectrochemical cell  
A photoelectrochemical cell is provided having an amorphous silicon electrode. A system employing a V +3 /V +2 redox system is described which enables the amorphous silicon electrode to function...
4620906 Means and method for reducing carbon dioxide to provide formic acid  
A process and apparatus for reducing carbon dioxide to formic acid includes two redox couple electrolyte solutions separated by a first membrane having photosensitizers. The carbon dioxide to be...
4618509 Arrays of stacked metal coordination compounds  
A process is disclosed for preparing novel arrays of metal coordination compounds characterized by arrangement of the metal ions, separated by a linking agent, in stacked order one above the other....
4609772 Photovoltaic products and processes  
A photovoltaic cell and the method of manufacturing the same. The cell includes a substrate of, e.g., of aluminum, having a layer of sulfur-stabilized cesium fluoride-like material with the outer...
4609451 Means for reducing carbon dioxide to provide a product  
A process and apparatus for reducing carbon dioxide to at least one useful product includes two redox couple electrolyte solutions separated by a first membrane having photosensitizers. The carbon...
4601960 Photoelectrochemical solar cell and method of fabricating a substrate for such a cell  
To obtain an efficiency of about 10% in photoelectrochemical solar cells, the pairing of semiconductor material for the working electrode and composition of the electrolyte liquid is of critical...
4595465 Means and method for reducing carbn dioxide to provide an oxalate product  
A process and apparatus for converting metallic elements to metallic oxalates in the presence of carbon dioxide includes two redox couple electrolyte solutions separated by a first membrane having...
4595568 Photosensitive cell for the decomposition of water  
The invention relates to a photosensitive cell for the decomposition of water of the type formed by an aqueous medium containing a photosensitizer positively charged both in the reduced state and...
4592807 Methods of making highly conductive photoelectrochemical electrodes  
A photoelectrode, containing a highly conductive coating material having a band gap greater than 0 to about 3.0 e.V. on a substrate containing a semiconductor material, is utilized in photovoltaic...
4578323 Fuel cell using quinones to oxidize hydroxylic compounds  
The present invention relates to fuel cells. More particularly, it relates to a fuel cell which produces electricity from the anaerobic oxidation of hydroxylic compounds, e.g. alcohols and sugars,...
4574039 Photocorrosion resistant semiconductor photoelectrodes  
A semiconductor photoelectrode resistant to photocorrosion and a method of preparing such a photoelectrode are disclosed. The photoelectrode includes a doped oxide layer on which illumination falls...
4571290 Process for the selective oxidation of olefins with photochemical illumination of semiconductor powder suspensions  
A process for the selective oxidation of olefins comprises the steps of forming a suspension of semiconductor powder in a solvent media, adding an olefin to the solvent media in the presence of an...
4559282 Stable N-CuInSe.sub.2 /iodide-iodine photoelectrochemical cell  
In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe 2 electrode material and an iodine/iodide redox couple used in...
4548696 3,4-Disubstituted polypyrroles and articles of manufacture coated therewith  
Electrically conducting and non-conducting 3,4-disubstituted polypyrroles of the formulae: ##STR1## wherein: n is a positive integer greater than 4; R 1 and R 2 may be the same or different,...
4544456 Method of synthesizing polymers from a solid electrolyte  
A method of synthesizing electrically conductive polymers from a solvent-free solid polymer electrolyte wherein an assembly of a substrate having an electrode thereon, a thin coating of solid...
4544470 Electrochemical photocatalytic structure  
A planar photoelectrochemical structure includes a thin, porous layer of semiconductor powder material on a catalytic film. Using incident light absorbed by the semiconductor, the structure is...
4543511 Semiconductor electrodes having regions of graded composition exhibiting photoluminescence and electroluminescence  
A photoelectrochemical cell (10) is disclosed which has a semiconductor substrate (11) formed of a solid solution of three metal and non-metal elements, with two like elements varying in...
4539431 Pulse anneal method for solar cell  
A solar cell including a pulse annealed layer of crystalline, amorphous or polycrystalline semiconductor material of one conductivity type and either a layer of opposite conductivity type or a...
4536260 Thin film cadmium selenide electrodeposited from selenosulphite solution  
A process for electrodepositing a thin layer of cadmium selenide on a suitable substrate is disclosed. The substrate is immersed in an electrolyte bath with pH ranging from 5 to 10 and having an...
4533608 Electrolytic photodissociation of chemical compounds by iron oxide photochemical diodes  
Chemical compounds can be dissociated by contacting the same with a p/n type semi-conductor photochemical diode having visible light as its sole source of energy. The photochemical diode consists...
4528252 Light energy conversion system  
A semiconductor photoelectric conversion structure having a PIN junction is assembled as a unitary structure with a redox chamber, with the P (or N) type semiconductor layer of the former being...
4524091 Method of preparing TiO.sub.2 thick film photoanodes for photoelectrochemical cells  
Semiconductive photoanodes formed of titanium dioxide (TiO 2 ) are known for use in photoelectrochemical cells. They have been made by various techniques, including chemical vapor deposition,...
4522695 Vapor phase hydrogen generator  
A hydrogen and oxygen generator having photoreceptors supported in a hydrophilic foam. The photoreceptors produce an electric current when exposed to sunlight. Water vapor present inside the...
4521499 Highly conductive photoelectrochemical electrodes and uses thereof  
A photoelectrode, containing a highly conductive coating material having a band gap greater than 0 to about 3.0 e.V. on a substrate containing a semiconductor material, is utilized in photovoltaic...
4521800 Multilayer photoelectrodes utilizing exotic materials  
A corrosion-resistant, multilayer photoelectrode for use in a photoelectrochemical cell and a process for producing said photoelectrode by preparing an effective layer of an insulator material on a...
4511838 Method for determining the point of zero zeta potential of semiconductor  
A method for determining the potential of zero charge of an unpowdered semiconductor material. The semiconductor material is used as the working electrode 12 of a standard three-electrode...
4511638 Photoresponsive amorphous semiconductor materials, methods of making the same, and photoanodes made therewith  
A photoresponsive amorphous semiconductor material is modified by incorporating at least one compensating agent selected from a group consisting of hydrogen, lithium, fluorine, beryllium, aluminum,...
4511450 Passive hydrogel fuel generator  
A passive hydrogen oxygen generator in which the long wavelength infrared portion of the sun's spectrum heats water to provide circulation of the water within the generator. The shorter wavelength...
4501804 Photo-assisted electrolysis cell with p-silicon and n-silicon electrodes  
The photoelectrolysis of water by solar radiation to produce hydrogen and oxygen is achieved using semiconductor electrodes. The cell comprises a p-silicon wafer treated with catalyst as...
4492743 Multilayer photoelectrodes and photovoltaic cells  
A corrosion-resistant, multilayer photoelectrode for use in a photoelectrochemical cell and a process for producing said photoelectrode by preparing an effective layer of an insulator material...
4485094 Method of making ABO.sub.3 of the cubic perovskite structure  
Disclosed is a method of making a continuous mixed oxide thin film. A composition is prepared of an alkoxide source of one of the metals in the mixed oxide, a chelate source of a second metal in...
4484992 Process for the production of hydrogen by means of heterogeneous photoredox catalysis  
A process is described for the selective production of hydrogen by means of heterogeneous photoredox catalysis, in which mixtures of water and alkali metal sulfites or sulfides, alkaline earth...
Matches 101 - 150 out of 283 < 1 2 3 4 5 6 >