Resultant Coating Is Solely Inorganic Patents (Class 204/490)
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Patent number: 11499248Abstract: An electric field drives nanocrystals dispersed in solvents to assemble into ordered three-dimensional superlattices. A first electrode and a second electrode 214 are in the vessel. The electrodes face each other. A fluid containing charged nanocrystals fills the vessel between the electrodes. The electrodes are connected to a voltage supply which produces an electrical field between the electrodes. The nanocrystals will migrate toward one of the electrodes and accumulate on the electrode producing ordered nanocrystal accumulation that will provide a superlattice thin film, isolated superlattice islands, or coalesced superlattice islands.Type: GrantFiled: February 9, 2018Date of Patent: November 15, 2022Assignee: Lawrence Livermore National Security, LLCInventors: Yixuan Yu, Joshua D. Kuntz, Christine A. Orme, Andrew J. Pascall
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Patent number: 11362319Abstract: A method for deposition of solid electrolyte material on electrode active material, comprising the steps of a feed of electrode active material from a first storage unit to a first dosing means with a simultaneous feed of solid electrolyte material from a second storage unit to a second dosing means, a feed of inert gas to the first dosing means and to the second dosing means via an inert gas feed means, a feed of the electrode active material via the first dosing means into a reaction space with simultaneous feed of the solid electrolyte material via the second dosing means into the reaction space, wherein the electronic structure of the electrode active material and of the solid electrolyte material is influenced during the feed to the reaction space via the first and second dosing means, such that the electrode active material and the solid electrolyte material bond to one another at least in part while retaining the crystal structure of the solid electrolyte material.Type: GrantFiled: August 28, 2019Date of Patent: June 14, 2022Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Enrica Jochler, Dominik Alexander Weber, Patrick Schichtel
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Patent number: 11256380Abstract: The present application provides a touch panel, a method for manufacturing the same and a display device. The touch panel includes a substrate and a metal nanowire conductive layer and an adhesion enhancement layer stacked on the substrate, the adhesion enhancement layer increases the adhesiveness between the substrate and the metal nanowire conductive layer; the adhesion enhancement layer has a stereo three-dimensional network structure capable of preventing agglomeration of the adhesion enhancement layer and formation of dead volume that leads to reduction in the conductivity of the metal nanowire conductive layer.Type: GrantFiled: December 18, 2019Date of Patent: February 22, 2022Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.Inventors: Jiamei Du, Dongkun Liu, Jinqiang Liu, Yawei Liu, Yaoyan Wu
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Patent number: 11136612Abstract: A reagent used for a glucose sensor for electrochemical, quantitative determination of glucose, includes a flavin adenine dinucleotide glucose dehydrogenase, single-walled carbon nanotubes, and a dispersant.Type: GrantFiled: August 7, 2017Date of Patent: October 5, 2021Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hitoshi Muguruma, Atsunori Hiratsuka, Hisanori Iwasa, Jun Takagi, Hiroyasu Kadoya
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Patent number: 11081252Abstract: An electrophoretic deposition (EPD) process forms a radioluminescent phosphor and radioisotope composite layer on a conductive surface of a substrate. In the composite layer formed, the particles of radioisotope are homogeneously dispersed with the radioluminescent phosphor. The radioisotope may be a beta-emitter, such as Ni-63, H-3, Pm-147, or Sr-90/Y-90. By applying the composite layer using the EPD process, the electrode can be configured for betavoltaic, beta-photovoltaic and photovoltaic cells according to further embodiments. A direct bandgap semiconductor device can convert betas and/or photons emitted from composite layer. Methods and choice of materials and components produces a hybrid radioisotope battery, conversion of photons and nuclear decay products, or radioluminescent surfaces.Type: GrantFiled: March 27, 2019Date of Patent: August 3, 2021Assignee: The United States of America as represented by the Secretary of the ArmyInventors: John A. Russo, Marc S. Litz, William B. Ray, II
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Patent number: 10527577Abstract: Improved electrochemical impedance spectroscopy assays are provided by electrodepositing metallic nanoparticles onto the working electrode for electrochemical impedance spectroscopy. The metallic nanoparticles provide improved assay sensitivity. Electrodeposition of the metallic nanoparticles firmly affixes them to the working electrode, thereby making it easier to clean the working electrode from one assay to the next assay without undesirably removing the metallic nanoparticles.Type: GrantFiled: July 18, 2017Date of Patent: January 7, 2020Assignees: The Board of Trustees of the Leland Stanford Junior University, The United States of America as represented by the Department of Veteran Affairs (Washington DC)Inventors: Preetha Jothimuthu, Mohammed Inayathullah Nazir Ahmed, Wen A. Tian, Jayakumar Rajadas, Mark Nicolls, JooChuan Ang
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Patent number: 10340094Abstract: An apparatus including a first charge collector and an ionic layer, the ionic layer configured to absorb water from the surrounding environment to deliver said water to the apparatus, the apparatus including graphene oxide provided on the first charge collector, the graphene oxide configured to generate protons in the presence of water; a second conductive material spaced apart from the first charge collector, the second material having a lower work function than the first charge collector, the graphene oxide extending from the first charge collector to be in contact with the second material at an interface; wherein the ionic layer is in contact with the graphene oxide and the second material; and wherein the ionic layer includes a room temperature ionic fluid and a solidifying material which provides for the ionic layer to be a solid at room temperature.Type: GrantFiled: April 27, 2016Date of Patent: July 2, 2019Assignee: Nokia Technologies OyInventors: Di Wei, Salvatore Zarra
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Patent number: 10167193Abstract: Disclosed herein are ferroelectric agglomerates and methods related thereto. In certain aspects, the ferroelectric agglomerates can be made from particles that have been treated with SbX3 or SbX5, wherein X is a halogen. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.Type: GrantFiled: September 23, 2015Date of Patent: January 1, 2019Assignee: Vanderbilt UniversityInventors: Sandra J. Rosenthal, Toshia Wrenn
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Patent number: 9920447Abstract: A graphene composite coating on a metal surface with excellent corrosion resistance by electrophoretic or electrolytic deposition has been obtained. The composite coating was shown to significantly increase the resistance of the metal surface to electrochemical degradation. The graphene coating significantly reduces cathodic current, which is an indicator of the rate of corrosion at the interface between the cathodic material and the anodic material.Type: GrantFiled: August 20, 2015Date of Patent: March 20, 2018Assignee: LUMINIT LLCInventors: Russell Kurtz, Mark Bennahmias
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Patent number: 9348132Abstract: A method for fabricating an electrowetting display may include forming pixel electrodes on a support plate; depositing a first layer on the pixel electrodes; etching portions of the first layer to form pixel walls that partition pixel regions; depositing a second layer on the pixel electrodes and the pixel walls; etching portions of the second layer to form spacers on tops of the pixel walls; and depositing a hydrophobic layer to at least partially cover the pixel electrodes.Type: GrantFiled: December 3, 2014Date of Patent: May 24, 2016Assignee: Amazon Technologies, Inc.Inventors: Pavel Novoselov, Gor Manukyan, Tulasi Sridhar Reddy Guntaka
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Patent number: 9150736Abstract: Methods are disclosed in which an electrically conductive substrate is immersed into an electrodepositable composition, the substrate serving as an electrode in an electrical circuit comprising the electrode and a counter-electrode immersed in the composition, a coating being applied onto or over at least a portion of the substrate as electric current is passed between the electrodes. The electrodepositable composition comprises: (a) an aqueous medium; (b) an ionic resin; and (c) solid particles.Type: GrantFiled: November 27, 2012Date of Patent: October 6, 2015Assignee: PPG Industries Ohio, Inc.Inventors: Randy E. Daughenbaugh, Stuart D. Hellring, Robin M. Peffer
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Patent number: 9134528Abstract: A method for manufacturing an electrowetting device provides a first fluid on a surface of a substrate. The method includes the steps of immersing part of the substrate in a second fluid, the second fluid being immiscible with the first fluid, and a surface of the second fluid forming a gutter along the surface of the substrate; providing a quantity of the first fluid in the gutter; and moving the gutter along the surface of the substrate, the surface of the substrate and a horizontal plane forming an angle between 100 degrees and 170 degrees. Also disclosed is an apparatus for performing the method.Type: GrantFiled: November 17, 2011Date of Patent: September 15, 2015Assignee: Amazon Technologies, Inc.Inventors: Ivar Schram, Romaric Massard, Christophe Miremont
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Working electrode, method for fabricating the same and dye-sensitized solar cell containing the same
Patent number: 9039881Abstract: The present invention provides a method for fabricating a working electrode. The method comprises the following steps: providing a photoelectrode, which comprises a conductive substrate with a semiconductor material; providing a dye solution, which comprises a dye dissolved in a solvent; and applying a voltage for conducting an electrophoresis to adsorb said dye onto a surface of said semiconductor material. The method of present invention makes the dye adsorbed fast to a surface of a semiconductor material by electrophoresis, and therefore, significantly reduces the time for fabricating a dye-sensitized solar cell.Type: GrantFiled: December 13, 2010Date of Patent: May 26, 2015Assignee: Jinex Corporation Ltd.Inventors: Jian-Ging Chen, Nien-Tzu Liu, Kun-Long Hsieh, Hsin-Wei Chen -
Publication number: 20150138692Abstract: Disclosed is a method of coating a structured surface comprising the steps of providing nanoparticles of a first coating material, and depositing the nanoparticles onto a structured surface using electrophoretic deposition. The structured surface may comprise one or more carbon nanotubes which maybe an array. The coating material may be a dielectric material such as barium titanate which may have a particle size of approximately 20 nm diameter. Following the deposition step a second coating may be provided. The second coating may be hafnium oxide. Also disclosed is a capacitor comprising a first electrode of a structured material, a second electrode of conducting material, and a dielectric layer formed between the first and second electrode.Type: ApplicationFiled: April 25, 2013Publication date: May 21, 2015Applicant: Dyson Technology LimitedInventors: Gehan Anjil Joseph Amaratunga, Youngjin Choi, Sai Giridhar Shivareddy, Nathan Charles Brown, Charles Anthony Neild Collis
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Publication number: 20150112180Abstract: A mesoporous neuronal electrode using a surfactant and a method of making the same are disclosed. A mesoporous neuronal electrode according to an exemplary embodiment includes a first metal nanoparticle, a second metal nanoparticle or both of the first and second metal nanoparticles on a surface of the electrode.Type: ApplicationFiled: May 27, 2014Publication date: April 23, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Yong Hee KIM, Nam Seob BAEK, Sang Don JUNG
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Patent number: 8995046Abstract: A suspended particle device includes a first substrate; a second substrate; a first electrode that can be controlled for a potential; a second electrode that can be controlled for a potential different from that of the first electrode; an electrified body; and a liquid suspension containing charged light control particles and a dispersion medium, in which the first electrode, the second electrode and the electrified body are disposed between the first substrate and the second substrate, and the liquid suspension is sealed between the first substrate and the second substrate, and the light control particles are capable of being accumulated to a periphery of the electrified body. Thus, it is possible to ensure uniformity of transmission light as well as to hold a light transmittance state in a state where the power supply is stopped.Type: GrantFiled: February 7, 2013Date of Patent: March 31, 2015Assignee: Hitachi Chemical Company, Ltd.Inventors: Shunsuke Mori, Hiroki Kaneko, Haruo Akahoshi
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Patent number: 8961767Abstract: An apparatus and method for measuring the isoelectric pH for materials deposited on or otherwise affixed onto and in contact with an electrode surface, and a method for utilizing the isoelectric pH to form nanometer thickness, self-assembled layers on the material, are described. Forming such layers utilizing information obtained about the isoelectric pH values of the substrate and the coating is advantageous since the growth of the coating is self-limiting because once the surface charge has been neutralized there is no longer a driving force for the solid electrolyte coating thickness to increase, and uniform coatings without pinhole defects will be produced because a local driving force for assembly will exist if any bare electrode material is exposed to the solution. The present self-assembly procedure, when combined with electrodeposition, may be used to increase the coating thickness.Type: GrantFiled: March 28, 2011Date of Patent: February 24, 2015Assignee: Colorado State University Research FoundationInventors: Amy L. Prieto, Derek C. Johnson, James M. Mosby
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Publication number: 20150047981Abstract: The invention makes it possible to produce very thin ceramic blanks as a precursor for ceramic discs, for example for use as faces in wrist watches. On the other hand, the production of metal blanks for use in CAD/CAM machines is possible with the invention. Both methods are based on depositing the material from a slurry or slip by electrophoresis. The essence of the invention is the isolation of the peripheral region of the precipitation electrodes that is produced by a non-conducting frame. This allows the precipitated mass to be easily lifted off from the precipitation electrode. The subsequent sintering with a possibly proceeding machining operation allows precision articles to be produced.Type: ApplicationFiled: October 1, 2012Publication date: February 19, 2015Inventor: Stefan Wolz
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Patent number: 8940145Abstract: A supercapacitor electrode mechanism comprising an electrically conductive, porous substrate, having one or more metallic oxides deposited on a first surface and a chemically reduced graphene oxide deposited on a second surface, to thereby provide an electrical double layer associated with the substrate. The substrate may be carbon paper or a similar substance. The layers of the supercapacitor are optionally rolled into an approximately cylindrical structure.Type: GrantFiled: March 1, 2013Date of Patent: January 27, 2015Assignee: The United States of America as Represented by the Administrator of the National Aeronautics & Space Administration (NASA)Inventors: Bin Chen, Meyya Meyyappan
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Publication number: 20140295153Abstract: The phosphor of the invention is based on a lanthunum cerium terbium phosphate, and it is characterized in that the phosphate consists of particles having a mean size of at most 4 ?m, in that it has a lithium content of at most 30 ppm, a boton content of at most 30 ppm and in that it has a variation of brightness between the brightness measured on the phosphor at 25° C. and that measured on the same phosphor at 200° C. of at most 4%.Type: ApplicationFiled: August 21, 2012Publication date: October 2, 2014Applicant: RHODIA OPERATIONSInventors: Valérie Buissette, Thierry Le-Mercier
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Patent number: 8795496Abstract: A method for manufacturing a one-dimensional nano-structure-based device comprises the steps of: preparing a solution (14) containing one-dimensional nano-structures (18); providing a pair of electrical conductors (10, 12) each having a tip (101, 121), the tips thereof being spaced apart from and opposite to each other; applying the solution to the tips of the electrical conductors thereby the tips being interconnected by the solution; applying a voltage (16) between the two conductors thereby at least one one-dimensional nano-structure being interconnected between the tips of the electrical conductors; and applying an external energy to at least one of the conductors and the one-dimensional nano-structure so as to disconnect the conductors from each other thereby obtaining at least one conductor having the tip with the one-dimensional nano-structure connected therewith.Type: GrantFiled: March 8, 2006Date of Patent: August 5, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Yang Wei, Shou-Shan Fan
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Patent number: 8795495Abstract: A method for manufacturing a one-dimensional nano-structure-based device includes the steps of preparing a solution (14) containing one-dimensional nano-structures (18); providing a plurality of electrical conductors (42), each of the electrical conductors having a first tip (421) to be treated; providing a fixing device (44) having a second tip (441); connecting at least one of the one-dimensional nano-structures with one of the electrical conductors; and repeating the connecting step to another one of the first tips to be treated. Therein, the connecting step further includes the steps of, in part: applying at least a drop of the solution to the first and second tips thereby the first and second tips being interconnected by the solution; applying a voltage between the first and second tips thereby at least one one-dimensional nano-structures being interconnected therewith; and separating the second tip from the first tip.Type: GrantFiled: March 8, 2006Date of Patent: August 5, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Yang Wei, Shou-Shan Fan
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Publication number: 20140186701Abstract: The present invention provides a composite anode for a battery comprising a copper current collector working electrode, at least one anode material comprising at least one of a carbon, a silicon, a conductive agent, and combinations thereof, wherein at least one anode material is deposited on a surface of the copper current collector working electrode to form the composite anode for a battery. An electrophoretic method for making this anode is provided. A lithium-ion battery having the composite anode is disclosed.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: WEST VIRGINIA UNIVERSITYInventors: Hui Zhang, Meng Yao, Xingbo Liu
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Patent number: 8758588Abstract: A method for manufacturing a one-dimensional nano-structure-based device comprises the steps of: Step (1), preparing a solution (14) containing one-dimensional nano-structures (15); Step (2), providing a pair of electrical conductors (10, 12), the electrical conductors having respective tips (101, 121) arranged to be spaced apart from and opposite to each other; Step (3), applying at least a drop of the solution to the tips of the electrical conductors thereby the tips being interconnected by the solution; Step (4), applying a voltage (16) between the tips thereby at least one one-dimensional nano-structure being connected with at least one of the tips of the electrical conductors; and Step (5), removing the liquid solvent of the solution.Type: GrantFiled: March 8, 2006Date of Patent: June 24, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Yang Wei, Shou-Shan Fan
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Patent number: 8697595Abstract: A precipitated film and the fabricating method thereof are disclosed. The precipitated film includes a supporting layer having columnar crystals, and a functional layer formed on the supporting layer and having granular crystals. The precipitated film is fabricated by phase-changing one of two aqueous solutions, which are able to react with each other to form a solid precipitate inherently, into solid-state and then reacting with the other aqueous solution to form the precipitated film by a precipitation reaction.Type: GrantFiled: September 6, 2011Date of Patent: April 15, 2014Assignee: Tamkang UniversityInventors: Ching-Bin Lin, Chang-Ching You, Hui-Chung Hsueh
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Patent number: 8663730Abstract: Methods to manufacture a three-dimensional battery are disclosed and claimed. A structural layer may be provided. A plurality of electrodes may be fabricated, each electrode protruding from the structural layer. A porous dielectric material may be deposited on the plurality of electrodes.Type: GrantFiled: January 11, 2008Date of Patent: March 4, 2014Assignee: Enovix CorporationInventors: Ashok Lahiri, Murali Ramasubramanian, Robert Spotnitz
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Patent number: 8597483Abstract: In a method for making a wave-absorbing sheet, first emulsified mixture is provided by mixing wave-absorbing particles with graphene solution so that the graphene solution absorbs the wave-absorbing particles. Secondly, second emulsified mixture is provided by adding and blending resin solution in the first emulsified mixture. Thirdly, third emulsified mixture is provided by adding and blending interface modifier in the second emulsified mixture. Then, two conductive substrates are submerged in the third emulsified mixture, and voltage is provided to the third emulsified mixture so that the wave-absorbing particles, the resin solution and the graphene solution are evenly coated on the conductive substrates. Then, a wave-absorbing sheet is provided by eroding and removing the conductive substrates. Finally, the wave-absorbing sheet is washed and dried. The wave-absorbing sheet is thin, light and flexible, and exhibits a wide absorption frequency band and a high absorption rate.Type: GrantFiled: April 24, 2012Date of Patent: December 3, 2013Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Yen-Chung Chen, Ker-Jer Huang, Chien-Chih Kung, Shang-Wanq Yeh
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Patent number: 8574415Abstract: A method of forming a single-layer photonic crystal structure. The method includes depositing electrophoretic suspension, working electrode and lower electrode in a container, wherein the working electrode and the lower electrode are formed at upper and lower parts of the container, respectively, and spaced apart at an distance; and applying an electric voltage to the working electrode and the lower electrode to form an electric field, such that particles in the electrophoretic suspension form a single-layer photonic crystal structure on the working electrode under interactive actions of the electric field and a gravity field by an electrophoresis self-assembly technique. Therefore, the single-layer photonic crystal structure has a low cost, and good quality and recurring property.Type: GrantFiled: March 18, 2011Date of Patent: November 5, 2013Assignee: National Chiao Tung UniversityInventors: Pu-Wei Wu, Yi-Jui Huang
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Publication number: 20130257572Abstract: A method of making a bulk exchange spring magnet by providing a magnetically soft material, providing a hard magnetic material, and producing a composite of said magnetically soft material and said hard magnetic material to make the bulk exchange spring magnet. The step of producing a composite of magnetically soft material and hard magnetic material is accomplished by electrophoretic deposition of the magnetically soft material and the hard magnetic material to make the bulk exchange spring magnet.Type: ApplicationFiled: February 26, 2013Publication date: October 3, 2013Applicant: Lawrence Livermore National Security, LLCInventors: Scott K. Mccall, Joshua D. Kuntz
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Publication number: 20130244102Abstract: Methods for forming three-layer thin-film battery (TFB) structures by sequential electrophoretic deposition (EPD) on a single conductive substrate. The TFBs may be two-dimensional or three-dimensional. The sequential EPD includes EPD of a first battery electrode followed by EPD of a porous separator on the first electrode and by EPD of a second battery electrode on the porous separator. In some embodiments of a Li or Li-ion TFB, the separator includes a Li ion conducting solid. In some embodiments of a Li or Li-ion TFB, the separator includes an inorganic porous solid rendered ionically conductive by impregnation with a liquid or polymer. In some embodiments, the TFBs are coated and sealed with an EPDd PEEK layer.Type: ApplicationFiled: December 5, 2011Publication date: September 19, 2013Applicant: RAMOT AT TEL-AVIV UNIVERSITY LTD.Inventors: Diana Golodnitsky, Emanuel Peled, Menachem Nathan, Gilat Ardel, Hadar Mazor-Shafir, Roni Hadar, Svetlana Menkin-Bachbut, Tania Ripenbein, Kathrin Freedman
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Publication number: 20130228462Abstract: A method of forming a film of lanthanide oxide nanoparticles. In one embodiment, the method includes the steps of: (a) providing a first substrate with a conducting surface and a second substrate that is positioned apart from the first substrate, (b) applying a voltage between the first substrate and the second substrate, (c) immersing the first and the second substrates in a solution that comprises a plurality of lanthanide oxide nanoparticles suspended in a non-polar solvent or apolar solvent for a first duration of time effective to form a film of lanthanide oxide nanoparticles on the conducting surface of the first substrate, and (d) after the immersing step, removing the first substrate from the solution and exposing the first substrate to air while maintaining the applied voltage for a second duration of time to dry the film of lanthanide oxide nanoparticles formed on the conducting surface of the first substrate.Type: ApplicationFiled: February 26, 2013Publication date: September 5, 2013Applicant: VANDERBILT UNIVERSITYInventors: James Dickerson, Sameer V. Mahajan
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Patent number: 8506782Abstract: A method of electrophoretic deposition of adsorbent media onto an electrically conducting substrate. The adsorbent media may include one or more porous coordination polymers and/or one or more secondary adsorbing particles. The adsorbent media may be continuously applied from a liquid composition at a selected thickness and at a controlled rate and as a function of voltage profiles.Type: GrantFiled: August 13, 2010Date of Patent: August 13, 2013Assignee: Southwest Research InstituteInventors: Charles K. Baker, Benjamin R. Furman, Joel J. Kampa, Christopher N. Tiftickjian
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Patent number: 8496796Abstract: A process for forming a composite film on a substrate comprises providing a suspension comprising an ionised polymer and functionalised carbon nanotubes in a solvent, at least partially immersing the substrate and a counterelectrode in the suspension, and applying a voltage between the substrate and the counterelectrode so as to form the composite film on the substrate. Electrical charges on the polymer and on the nanotubes have the same sign and the voltage is applied such that the charge on the substrate has the opposite sign to the charge on the polymer and the nanotubes.Type: GrantFiled: October 17, 2007Date of Patent: July 30, 2013Assignee: Agency for Science, Technology and ResearchInventors: Xu Li, Chaobin He, Decheng Wu, Ye Liu
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Patent number: 8470150Abstract: Methods for fabricating electrode structures on a substrate are presented. The fabrication method includes providing a substrate with a patterned metal layer thereon, defining an electrode area. A passivation glue is formed on the patterned metal layer. An electrode layer is formed in the electrode area. A filling process is performed to deposit nano metal oxides on the electrode layer to extensively fill the entire electrode area.Type: GrantFiled: April 12, 2011Date of Patent: June 25, 2013Assignee: Industrial Technology Research InstituteInventors: Kun-Mu Lee, Sz-Ping Fu, Wei-Hao Chiu, Chuan-Ya Hung
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Publication number: 20130101830Abstract: Disclosed is a process for electrophoretic deposition of colloidal suspensions of nanoparticles, especially from aprotic solvents, onto a variety of substrates. The process provides chemical additives that can be used to improve thin films deposited from colloidal suspensions by increasing the rate of deposition and the smoothness of the deposited film. In this process, a chemical additive is used to improve the properties of the deposited thin films. The chemical additive comprises a redox couple, an organometallic complex, a metallocene, a ferrocene, or a nickelocene. The colloidal suspension can be composed of semiconductor, metal or ceramic nanoparticles suspended in an aprotic polar solvent such as acetone, acetonitrile, or pyridine. The process also improves the properties of thin films deposited from protic solvents. The particles have at least one dimension ranging from 0.1 nanometers (nm) to 500 nm.Type: ApplicationFiled: October 25, 2012Publication date: April 25, 2013Inventors: Kevin V. Hagedorn, Bing Liu
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Patent number: 8425746Abstract: The present disclosure generally relates to systems, arrangements, and techniques for electrophoretic deposition of a plating material on a surface of a substrate. Example systems may include one or more of a substrate for receiving the plating material, a gel, a source element, and a conductive layer.Type: GrantFiled: September 27, 2011Date of Patent: April 23, 2013Assignee: Empire Technology Development LLCInventor: Ezekiel Kruglick
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Publication number: 20120314339Abstract: A method of manufacturing a composite assembly includes providing a fluid bath and adding a ceramic material to the fluid bath. The ceramic material comprises a plurality of ceramic particles, wherein the plurality of ceramic particles is devoid of a conductive coating. The method further includes immersing at least part of a conductive substrate in the fluid bath. The method also includes applying a voltage potential between the fluid bath and the conductive substrate, whereby the ceramic material is electrodeposited onto the conductive substrate as at least a portion of a dielectric layer.Type: ApplicationFiled: June 18, 2012Publication date: December 13, 2012Applicant: Tyco Electronics CorporationInventors: Mary Elizabeth Sullivan, Robert Daniel Hilty
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Patent number: 8277626Abstract: The present invention is directed to a method for coating a substrate wherein the substrate is electrically conductive, the method comprising simultaneously applying a plurality of electrically conductive liquid materials to different portions of the substrate wherein at least one of the electrically conductive liquid materials comprises an ionic compound; and applying an electrical current to at least one of the liquid materials thereby depositing the ionic compound onto the substrate.Type: GrantFiled: June 11, 2010Date of Patent: October 2, 2012Assignee: PPG Industries Ohio, Inc.Inventors: Gary Orosz, Donald W. Boyd, Benjamin Kabagambe, James W. McCamy, Douglas A. McPheron
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Patent number: 8192602Abstract: The invention relates to a method for the preparation of stable solutions of charged inorganic-organic polymers, in which the hydrolysis-condensation reactions of metal alkoxides in alcoholic solutions are controlled using a condensation inhibitor that forms protons. The invention further relates to substrates coated by sol-gel electrophoretic deposition (EPD) with these solutions, and to metal oxide coated substrates obtained therefrom.Type: GrantFiled: August 3, 2006Date of Patent: June 5, 2012Assignee: 3GSolar Photovoltaics Ltd.Inventors: Arie Zaban, Larissa Grinis, Asher Ofir
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Publication number: 20120086943Abstract: There is provided a method that can curtail the time for forming a particle layer and that can permit the production of a nanoparticle monolayer having stable optical characteristics at a high coating ratio and homogeneity in a reproducible and an efficient manner. In the formation of the nanoparticle monolayer on a substrate, said substrate is immersed as the anode or cathode together with an opposite electrode of the cathode or anode in a solution in which nanoparticles are suspended in a dispersion medium, and then a direct-current voltage is applied to electrophoretically deposit the nanoparticle monolayer on said substrate.Type: ApplicationFiled: March 17, 2010Publication date: April 12, 2012Applicant: TOKYO INSTITUTE OF TECHNOLOGYInventors: Tatsuro Endo, Daisuki Ikeda, Hikaru Takizawa, Yoshiyuki Ryuuno
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Publication number: 20120073971Abstract: An apparatus and method for measuring the isoelectric pH for materials deposited on or otherwise affixed onto and in contact with an electrode surface, and a method for utilizing the isoelectric pH to form nanometer thickness, self-assembled layers on the material, are described. Forming such layers utilizing information obtained about the isoelectric pH values of the substrate and the coating is advantageous since the growth of the coating is self-limiting because once the surface charge has been neutralized there is no longer a driving force for the solid electrolyte coating thickness to increase, and uniform coatings without pinhole defects will be produced because a local driving force for assembly will exist if any bare electrode material is exposed to the solution. The present self-assembly procedure, when combined with electrodeposition, may be used to increase the coating thickness.Type: ApplicationFiled: March 28, 2011Publication date: March 29, 2012Applicant: Colorado State University Research FoundationInventors: Amy L. Prieto, Derek C. Johnson, James M. Mosby
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Publication number: 20110266158Abstract: The present invention relates to a process for obtaining a metal, ceramic or composite coating on the surface of a non-conductive material such as plastic, ceramic or wood which comprises: A) preparing a polypyrrole dispersion in aqueous base paint or in an acid type water-soluble pure resin; B) diluting the dispersion resulting from the previous stage with an alcohol in a factor of 1.5; C) applying the dispersion of the conductive polymer resulting from stage B) on the surface to be coated and drying same; and D) obtaining the metal, ceramic or composite coating by means of an electrolytic process or an electrophoretic deposition.Type: ApplicationFiled: June 19, 2008Publication date: November 3, 2011Applicant: FUNDACION CIDETECInventors: Esther Chávez Amado, Jose Antonio Diez Silanes, Sarah Montes Pérez, Estíbaliz Ochoteco Vaquero, José Adolfo Pomposo Alonso
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Publication number: 20110227000Abstract: Disclosed are methods for preparing electrophoretically deposited graphene based films.Type: ApplicationFiled: March 21, 2011Publication date: September 22, 2011Inventors: Rodney S. Ruoff, Sung Jin An, Meryl Stoller, Tryggvi Emilsson, Dileep Agnihotri
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Patent number: 7887688Abstract: Disclosed is a production process of an electronic circuit that can efficiently form a highly accurate electrically conductive pattern. The production process comprises the steps of: adhering insulating particles onto an electrically conductive base material to form an insulating pattern comprising a pattern region and a nonpattern region on the electrically conductive base material; adhering electrically conductive particles to the nonpattern region by first electrophoretic treatment; removing the pattern region by second electrophoretic treatment; and transferring the electrically conductive particles onto a recording medium to form an electrically conductive pattern of the electrically conductive particles onto the recording medium.Type: GrantFiled: August 1, 2006Date of Patent: February 15, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Isao Takasu
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Patent number: 7799196Abstract: Methods and apparatus for forming devices using nanotubes. In one embodiment, an apparatus for depositing nanotubes onto a workpiece comprises a vessel configured to contain a deposition fluid having a plurality of nanotubes including first nanotubes having a first characteristic and second nanotubes having a second characteristic. The apparatus further includes a sorting unit in the vessel configured to selectively isolate or otherwise sort the first nanotubes from the second nanotubes, and a field unit in the vessel configured to attach the first nanotubes to the workpiece. For example, the field unit can attach the first nanotubes to the workpiece such that the first nanotubes are at least generally parallel to each other and in a desired orientation relative to the workpiece.Type: GrantFiled: September 1, 2005Date of Patent: September 21, 2010Assignee: Micron Technology, Inc.Inventor: Gurtej S. Sandhu
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Patent number: 7780832Abstract: A method for protecting a thermal barrier coating (TBC) which comprises voids is described. The method involves the step of electrophoretically depositing a mitigation coating material such as alumina to fill at least a portion of the voids. The TBC is often applied over a metal substrate, such as a turbine engine component. The voids can be in the form of vertical cracks within the TBC. A thermal barrier coating is also described, containing voids which extend into the coating from a top surface, wherein at least a portion of the voids is filled with a mitigation coating material.Type: GrantFiled: November 30, 2005Date of Patent: August 24, 2010Assignee: General Electric CompanyInventor: Wayne Charles Hasz
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Patent number: 7678255Abstract: A mask for application to a substrate to facilitate electrokinetic deposition of charged particles onto the substrate, the mask comprising a conducting layer, a dielectric layer, and mask openings. A method for applying a pattern of charged particles to a substrate comprising applying the foregoing the substrate to yield a masked substrate; immersing the masked substrate in a bath containing the charged particles; and establishing an electrical potential between the conducting layer of the mask and a counter-electrode thereby electrokinetically depositing the particles through the mask openings onto areas of the substrate exposed in the mask openings. Products made by this method.Type: GrantFiled: May 18, 2006Date of Patent: March 16, 2010Assignee: Fry's Metals, Inc.Inventors: Oscar Khaselev, Brian G. Lewis, Michael Marczi, Bawa Singh
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Patent number: 7611615Abstract: The present invention provides a process for manufacturing a porous metal electrode, wherein the porosity degree is in the range of 30 to 50% and the metal is capable of forming a stable, uniform, oxide layer having a dielectric constant greater than 25 (k?25), preferably selected from the group consisting of tantalum and niobium, comprising a substantially uniform porous layer of deposited said metal particles thereon. The present invention further relates to a stable suspension for electrophoretically homogeneously deposition of said metal.Type: GrantFiled: June 13, 2002Date of Patent: November 3, 2009Assignee: Cerel (Ceramics Technologies) Ltd.Inventors: Nissim Cohen, Israel Schuster, Ludmila Cherniak, Tali Peled
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Patent number: 7510638Abstract: The present invention is directed to a method for depositing unpatterned or selectively patterned nanoparticle films of controlled thickness on the respective film deposition surface of each of a pair of electrodes. In the present method, a pair of electrodes, each having a conducting film deposition surface, are immersed in a non-conducting nonpolar solvent in which nanoparticles, each having ligands attached thereto, are suspended. A voltage is applied to the pair of electrodes thereby causing films of the nanoparticles to deposit on the respective film deposition surface of each of the pair of electrodes. The nanoparticle films formed by the present method may be unpatterned or they may be patterned by patterning the conducting film deposition surface of at least one electrode of the pair of electrodes. The nanoparticle films formed according to the method of the present invention are useful as layers in electronic devices.Type: GrantFiled: October 27, 2004Date of Patent: March 31, 2009Assignee: The Trustees of Columbia University in the city of New YorkInventors: Irving P. Herman, Mohammad A. Islam
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Publication number: 20090082201Abstract: A mesoporous silica thick-film comprising a layer of mesoporous silica formed in a thickness of 10 ?m to 1 mm, and a process for producing a mesoporous silica thick-film, which comprises disposing a substrate in a solution containing mesoporous silica suspended therein and subsequently applying a voltage thereby to form a film having a thickness of 10 ?m to 1 mm by the electrophoretic deposition of the mesoporous silica on a surface of the substrate is provided.Type: ApplicationFiled: April 20, 2006Publication date: March 26, 2009Inventors: Hideyuki Negishi, Akira Endo, Masaru Nakaiwa, Hiroshi Yanagishita