Patents by Inventor Delia J. Milliron
Delia J. Milliron has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10585322Abstract: Described are electrochromic films produced by low temperature condensation of polyoxometalates and applications thereof. A method of producing an electrochromic film includes depositing a polyoxometalate (POM) solution on a substrate to form a POM film. The POM solution includes anionic POM clusters and counter ions, and may be doped with near-infrared plasmonic nanocrystals. The film is chemically cured using an acid to condense the POM clusters within the POM film. Another method of producing an electrochromic film includes electrochemical deposition and condensation of POM clusters.Type: GrantFiled: April 14, 2015Date of Patent: March 10, 2020Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Anna Llordés Gil, Delia J. Milliron, Gabriel LeBlanc, Yang Wang
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Patent number: 9785031Abstract: An electrochromic device includes a nanostructured transition metal oxide bronze layer that includes one or more transition metal oxide and one or more dopant, a solid state electrolyte, and a counter electrode. The nanostructured transition metal oxide bronze selectively modulates transmittance of near-infrared (NIR) spectrum and visible spectrum radiation as a function of an applied voltage to the device.Type: GrantFiled: March 27, 2015Date of Patent: October 10, 2017Assignees: HELIOTROPE TECHNOLOGIES, INC., THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Tracy M. Mattox, Bonil Koo, Guillermo Garcia, Delia J. Milliron, Luca De Trizio, Clayton Dahlman
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Publication number: 20170031224Abstract: Described are electrochromic films produced by low temperature condensation of polyoxometalates and applications thereof. A method of producing an electrochromic film includes depositing a polyoxometalate (POM) solution on a substrate to form a POM film. The POM solution includes anionic POM clusters and counter ions, and may be doped with near-infrared plasmonic nanocrystals. The film is chemically cured using an acid to condense the POM clusters within the POM film. Another method of producing an electrochromic film includes electrochemical deposition and condensation of POM clusters.Type: ApplicationFiled: April 14, 2015Publication date: February 2, 2017Inventors: Anna Llordés Gil, Delia J. Milliron, Gabriel LeBlanc, Yang Wang
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Patent number: 9556379Abstract: Certain nanocrystals possess exceptional optical properties that may make them valuable probes for biological imaging, but rendering these nanoparticles biocompatible requires that they be small enough not to perturb cellular systems. This invention describes a phosphorescent upconverting sub-10 nm nanoparticle comprising a lanthanide-doped hexagonal ?-phase NaYF4 nanocrystal and methods for making the same.Type: GrantFiled: September 14, 2012Date of Patent: January 31, 2017Assignee: The Regents of the University of CaliforniaInventors: Bruce E. Cohen, Alexis D. Ostrowski, Emory M. Chan, Daniel J. Gargas, Elan M. Katz, P. James Schuck, Delia J. Milliron
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Publication number: 20160168459Abstract: Certain nanocrystals possess exceptional optical properties that may make them valuable probes for biological imaging, but rendering these nanoparticles biocompatible requires that they be small enough not to perturb cellular systems. This invention describes a phosphorescent upconverting sub-10 nm nanoparticle comprising a lanthanide-doped hexagonal ?-phase NaYF4 nanocrystal and methods for making the same.Type: ApplicationFiled: September 14, 2012Publication date: June 16, 2016Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Bruce E. Cohen, Alexis D. Ostrowski, Emory M. Chan, Daniel J. Gargas, Elan M. Katz, P. James Schuck, Delia J. Milliron
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Patent number: 9287119Abstract: An embodiment of an inorganic nanocomposite includes a nanoparticle phase and a matrix phase. The nanoparticle phase includes nanoparticles that are arranged in a repeating structure. In an embodiment, the nanoparticles have a spherical or pseudo-spherical shape and are incompatible with hydrazine. In another embodiment, the nanoparticles have neither a spherical nor pseudo-spherical shape. The matrix phase lies between the nanoparticles of the nanoparticle phase. An embodiment of a method of making an inorganic nanocomposite of the present invention includes forming a nanoparticle superlattice on a substrate. The nanoparticle superlattice includes nanoparticles. Each nanoparticle has organic ligands attached to a surface of the nanoparticle. The organic ligands separate adjacent nanoparticles within the nanoparticle superlattice. The method also includes forming a solution that includes an inorganic precursor.Type: GrantFiled: April 13, 2012Date of Patent: March 15, 2016Assignee: The Regents of the University of CaliforniaInventors: Ravisubhash Tangirala, Delia J. Milliron, Anna Llordes
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Publication number: 20150277202Abstract: An electrochromic device includes a nanostructured transition metal oxide bronze layer that includes one or more transition metal oxide and one or more dopant, a solid state electrolyte, and a counter electrode. The nanostructured transition metal oxide bronze selectively modulates transmittance of near-infrared (NIR) spectrum and visible spectrum radiation as a function of an applied voltage to the device.Type: ApplicationFiled: March 27, 2015Publication date: October 1, 2015Inventors: Tracy M. MATTOX, Bonil KOO, Guillermo GARCIA, Delia J. MILLIRON, Luca De TRIZIO, Clayton DAHLMAN
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Publication number: 20150241349Abstract: Various embodiments of the invention describe the synthesis of upconverting nanoparticles (UCNPs), lanthanide-doped hexagonal ?-phase sodium yttrium fluoride NaYF4:Er3+/Yb3 nanocrystals, less than 10 nanometers in diameter that are over an order of magnitude brighter under single-particle imaging conditions than existing compositions, allowing visualization of single UCNPs as small (d=4.8 nm) as fluorescent proteins. We use Advanced single-particle characterization and theoretical modeling is demonstrated to find that surface effects become critical at diameters under 20 nm, and that the fluences used in single-molecule imaging change the dominant determinants of nanocrystal brightness. These results demonstrate that factors known to increase brightness in bulk experiments lose importance at higher excitation powers, and that, paradoxically, the brightest probes under single-molecule excitation are barely luminescent at the ensemble level.Type: ApplicationFiled: February 12, 2015Publication date: August 27, 2015Applicant: The Regents of the University of CaliforniaInventors: Bruce E. Cohen, James P. Schuck, Daniel J. Gargas, Emory M. Chan, Alexis D. Ostrowski, Jeffrey J. Urban, Delia J. Milliron
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Patent number: 8961828Abstract: The present invention provides a method of preparing aluminum-doped zinc oxide (AZO) nanocrystals. In an exemplary embodiment, the method includes (1) injecting a precursor mixture of a zinc precursor, an aluminum precursor, an amine, and a fatty acid in a solution of a vicinal diol in a non-coordinating solvent, thereby resulting in a reaction mixture, (2) precipitating the nanocrystals from the reaction mixture, thereby resulting in a final precipitate, and (3) dissolving the final precipitate in an apolar solvent. The present invention also provides a dispersion. In an exemplary embodiment, the dispersion includes (1) nanocrystals that are well separated from each other, where the nanocrystals are coated with surfactants and (2) an apolar solvent where the nanocrystals are suspended in the apolar solvent. The present invention also provides a film. In an exemplary embodiment, the film includes (1) a substrate and (2) nanocrystals that are evenly distributed on the substrate.Type: GrantFiled: November 23, 2011Date of Patent: February 24, 2015Assignee: The Regents of the University of CaliforniaInventors: Raffaella Buonsanti, Delia J. Milliron
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Publication number: 20140322898Abstract: An embodiment of an inorganic nanocomposite includes a nanoparticle phase and a matrix phase. The nanoparticle phase includes nanoparticles that are arranged in a repeating structure. In an embodiment, the nanoparticles have a spherical or pseudo-spherical shape and are incompatible with hydrazine. In another embodiment, the nanoparticles have neither a spherical nor pseudo-spherical shape. The matrix phase lies between the nanoparticles of the nanoparticle phase. An embodiment of a method of making an inorganic nanocomposite of the present invention includes forming a nanoparticle superlattice on a substrate. The nanoparticle superlattice includes nanoparticles. Each nanoparticle has organic ligands attached to a surface of the nanoparticle. The organic ligands separate adjacent nanoparticles within the nanoparticle superlattice. The method also includes forming a solution that includes an inorganic precursor.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Inventors: Ravisubhash Tangirala, Delia J. Milliron, Anna Llordes
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Publication number: 20130266800Abstract: The present invention provides a method of preparing aluminum-doped zinc oxide (AZO) nanocrystals. In an exemplary embodiment, the method includes (1) injecting a precursor mixture of a zinc precursor, an aluminum precursor, an amine, and a fatty acid in a solution of a vicinal diol in a non-coordinating solvent, thereby resulting in a reaction mixture, (2) precipitating the nanocrystals from the reaction mixture, thereby resulting in a final precipitate, and (3) dissolving the final precipitate in an apolar solvent. The present invention also provides a dispersion. In an exemplary embodiment, the dispersion includes (1) nanocrystals that are well separated from each other, where the nanocrystals are coated with surfactants and (2) an apolar solvent where the nanocrystals are suspended in the apolar solvent. The present invention also provides a film. In an exemplary embodiment, the film includes (1) a substrate and (2) nanocrystals that are evenly distributed on the substrate.Type: ApplicationFiled: November 23, 2011Publication date: October 10, 2013Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Raffaella Buonsanti, Delia J. Milliron
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Publication number: 20120273719Abstract: An embodiment of an inorganic nanocomposite includes a nanoparticle phase and a matrix phase. The nanoparticle phase includes nanoparticles that are arranged in a repeating structure. In an embodiment, the nanoparticles have a spherical or pseudo-spherical shape and are incompatible with hydrazine. In another embodiment, the nanoparticles have neither a spherical nor pseudo-spherical shape. The matrix phase lies between the nanoparticles of the nanoparticle phase. An embodiment of a method of making an inorganic nanocomposite of the present invention includes forming a nanoparticle superlattice on a substrate. The nanoparticle superlattice includes nanoparticles. Each nanoparticle has organic ligands attached to a surface of the nanoparticle. The organic ligands separate adjacent nanoparticles within the nanoparticle superlattice. The method also includes forming a solution that includes an inorganic precursor.Type: ApplicationFiled: April 13, 2012Publication date: November 1, 2012Applicant: The Regents of the University of CaliforniaInventors: Ravisubhash Tangirala, Delia J. Milliron, Anna Llordes
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Patent number: 7670584Abstract: Methods for forming colloidal metal chalcogenide nanoparticles generally include forming soluble inorganic metal chalcogen cluster precursors, which are then mixed with a surfactant and heated to form the colloidal metal chalcogenide nanoparticles. The soluble inorganic metal chalcogen cluster precursors are generally formed using a hydrazine-based solvent. The methods can be used with main group and transition metals.Type: GrantFiled: June 1, 2007Date of Patent: March 2, 2010Assignees: International Business Machines Corporation, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Marissa A. Caldwell, Delia J. Milliron
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Patent number: 7563430Abstract: Methods for forming colloidal metal chalcogenide nanoparticles generally include forming soluble inorganic metal chalcogen cluster precursors, which are then mixed with a surfactant and heated to form the colloidal metal chalcogenide nanoparticles. The soluble inorganic metal chalcogen cluster precursors are generally formed using a hydrazine-based solvent. The methods can be used with main group and transition metals.Type: GrantFiled: March 28, 2008Date of Patent: July 21, 2009Assignees: International Business Machines Corporation, The Board of Trustees of the Leland Stanford Junior UniversityInventors: Marissa A. Caldwell, Delia J. Milliron
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Publication number: 20080299033Abstract: Methods for forming colloidal metal chalcogenide nanoparticles generally include terming soluble inorganic metal chalcogen cluster precursors, which are then mixed with a surfactant and heated to form the colloidal metal chalcogenide nanoparticles. The soluble inorganic metal chalcogen cluster precursors are generally formed using a hydrazine-based solvent. The methods can be used with main group and transition metals.Type: ApplicationFiled: June 1, 2007Publication date: December 4, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Marissa A. Caldwell, Delia J. Milliron
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Publication number: 20080300323Abstract: Methods for forming colloidal metal chalcogenide nanoparticles generally include forming soluble inorganic metal chalcogen cluster precursors, which are then mixed with a surfactant and heated to form the colloidal metal chalcogenide nanoparticles. The soluble inorganic metal chalcogen cluster precursors are generally formed using a hydrazine-based solvent. The methods can be used with main group and transition metals.Type: ApplicationFiled: March 28, 2008Publication date: December 4, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Marissa A. Caldwell, Delia J. Milliron
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Publication number: 20080124833Abstract: A metal chalcogenide material is deposited into holes within a substrate surface. The method comprises obtaining a hydrophilic substrate surface; obtaining a solution of a hydrazine-based precursor of a metal chalcogenide; applying the solution onto the substrate to fill the holes with said precursor; and thereafter annealing the precursor to convert said precursor to said metal chalcogenide thereby producing holes in the substrate surface filled with a metal chalcogenide material.Type: ApplicationFiled: November 3, 2006Publication date: May 29, 2008Applicant: International Business Machines CorporationInventors: Ricardo Ruiz, Delia J. Milliron, Simone Raoux, David B. Mitzi, Alejandro G. Schrott
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Patent number: 7341917Abstract: Metal chalcogenide films comprising at least one transition metal chalcogenide are prepared by dissolving a metal chalcogenide containing at least one transition metal chalcogenide in a hydrazine compound and, optionally, an excess of chalcogen to provide a precursor of the metal chalcogenide; applying a solution of said precursor onto a substrate to produce a film of said precursor; and annealing the film of the precursor to produce the metal chalcogenide film comprising at least one transition metal chalcogenide. The process can be used to prepare field-effect transistors and photovoltaic devices.Type: GrantFiled: February 14, 2005Date of Patent: March 11, 2008Assignee: International Business Machines CorporationInventors: Delia J. Milliron, David B. Mitzi