Abstract: Quantum-dot binding ligands with easy to synthesize alkyl-acids are provided. The quantum-dot binding ligands include a multiplicity of carboxy binding ligands in combination with an alkyl backbone, and optionally a solubilizing group. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures.
Type:
Application
Filed:
March 13, 2014
Publication date:
September 18, 2014
Applicant:
Nanosys, Inc.
Inventors:
William P. Freeman, Paul T. Furuta, Robert Dubrow
Abstract: Quantum-dot binding ligands with silsesquioxane moieties are provided. The quantum-dot binding ligands include a multiplicity of amine or carboxy binding ligands in combination with silsesquioxane moieties providing improved stability for the ligated quantum dots. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nanostructures.
Type:
Application
Filed:
March 13, 2014
Publication date:
September 18, 2014
Applicant:
Nanosys, Inc.
Inventors:
William P. Freeman, Paul T. Furuta, Robert Dubrow, J. Wallace Parce
Abstract: The present invention describes a solventless ligand exchange using a siloxane polymer having a binding ligand that displaces the binding ligand on a quantum dot material.
Abstract: Provided is a carbon nanotube (CNT) transparent conductive layer having a loop pattern in which a plurality of loops are at least partially connected to one another, and a fabrication method thereof. The loops in the pattern are generated by a spray-coating method and partially connected with one anther, and thus improving transparency and conductivity of the CNT transparent conductive layer. In Addition, the CNT transparent conductive layer has conductivity and sheet resistance highly suitable for a transparent electrode.
Type:
Grant
Filed:
October 9, 2008
Date of Patent:
August 26, 2014
Assignee:
Top Nanosys, Inc.
Inventors:
Sang Keun Oh, Kyoung Hwa Song, Da Jeong Jeong, Do Hyeong Park, Dong-Myeon Lee
Abstract: The present invention provides methods for hermetically sealing luminescent nanocrystals, as well as compositions and containers comprising hermetically sealed luminescent nanocrystals. By hermetically sealing the luminescent nanocrystals, enhanced lifetime and luminescence can be achieved.
Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes are optionally formed from the ligands. The matrixes of the present invention can be used as refractive index matching components, filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided. Nanostructures having high quantum efficiency, small size, and/or a narrow size distribution are also described, as are methods of producing indium phosphide nanostructures and core-shell nanostructures with Group II-VI shells.
Type:
Application
Filed:
November 18, 2013
Publication date:
June 5, 2014
Applicant:
Nanosys, Inc.
Inventors:
Mingjun Liu, Robert S. Dubrow, William P. Freeman, Adrienne D. Kucma, J. Wallace Parce
Abstract: The present invention provides methods for hermetically sealing luminescent nanocrystals, as well as compositions and containers comprising hermetically sealed luminescent nanocrystals. By hermetically sealing the luminescent nanocrystals, enhanced lifetime and luminescence can be achieved.
Abstract: The present invention provides light-emitting diode (LED) devices comprises compositions and containers of hermetically sealed luminescent nanocrystals. The present invention also provides displays comprising the LED devices. Suitably, the LED devices are white light LED devices.
Type:
Application
Filed:
September 13, 2013
Publication date:
January 9, 2014
Applicant:
Nanosys, Inc.
Inventors:
Robert S. Dubrow, Jian Chen, Veeral D. Hardev, H. Jurgen Hofler, Ernest Lee
Abstract: Methods and apparatus for high density nanowire growth are presented. Methods of making a nanowire growth cartridge assembly are also provided, as are nanowire growth cartridge assemblies.
Abstract: Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes are optionally formed from the ligands. The matrixes of the present invention can be used as refractive index matching components, filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided. Nanostructures having high quantum efficiency, small size, and/or a narrow size distribution are also described, as are methods of producing indium phosphide nanostructures and core-shell nanostructures with Group II-VI shells.
Type:
Grant
Filed:
October 2, 2012
Date of Patent:
December 31, 2013
Assignee:
Nanosys, Inc.
Inventors:
Mingjun Liu, Robert S. Dubrow, William P. Freeman, Adrienne D. Kucma, J. Wallace Parce
Abstract: Siloxane polymer ligands for binding to quantum dots are provided. The polymers include a multiplicity of amine or carboxy binding ligands in combination with long-alkyl chains providing improved stability for the ligated quantum dots. The ligands and coated nanostructures of the present invention are useful for close packed nanostructure compositions, which can have improved quantum confinement and/or reduced cross-talk between nano structures.
Type:
Application
Filed:
March 14, 2013
Publication date:
December 26, 2013
Applicant:
Nanosys, Inc.
Inventors:
William P. Freeman, Paul T. Furuta, Wendy Guo, Robert Dubrow, J. Wallace Parce
Abstract: The present invention provides polymeric compositions that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.
Type:
Grant
Filed:
July 2, 2009
Date of Patent:
October 22, 2013
Assignee:
Nanosys, Inc.
Inventors:
Jeffery A. Whiteford, Mihai A. Buretea, Linh Hong Nguyen, Erik Scher
Abstract: A dielectric material is disclosed comprising a plurality of substantially longitudinally oriented wires which are coupled together, wherein each of the wires includes a conductive core comprising a first material and one or more insulating shell layers comprising a compositionally different second material disposed about the core. In one embodiment, a dielectric layer is disclosed comprising a substrate comprising an insulating material having a plurality of nanoscale pores defined therein having a pore diameter less than about 100 nm, and a conductive material disposed within the nanoscale pores.
Type:
Grant
Filed:
June 12, 2007
Date of Patent:
October 15, 2013
Assignee:
Nanosys, Inc.
Inventors:
Robert S. Dubrow, Jeffrey Miller, David P. Stumbo
Abstract: The present invention relates to methods of generating liquidphobic surfaces, and surfaces prepared by these methods. The methods include generating sub-micron-structured surfaces and coating these surfaces with a liquidphobic coating, such as a hydrophobic coating.
Type:
Grant
Filed:
November 17, 2009
Date of Patent:
September 24, 2013
Assignee:
Nanosys, Inc.
Inventors:
Jason Hartlove, Ronald Barr, Robert S. Dubrow
Abstract: A dielectric material is disclosed comprising a plurality of substantially longitudinally oriented wires which are coupled together, wherein each of the wires includes a conductive core comprising a first material and one or more insulating shell layers comprising a compositionally different second material disposed about the core. In one embodiment, a dielectric layer is disclosed comprising a substrate comprising an insulating material having a plurality of nanoscale pores defined therein having a pore diameter less than about 100 nm, and a conductive material disposed within the nanoscale pores.
Type:
Application
Filed:
June 12, 2007
Publication date:
September 19, 2013
Applicant:
NANOSYS, INC.
Inventors:
Robert S. Dubrow, Jeffrey Miller, David P. Stumbo
Abstract: The present invention provides light-emitting diode (LED) devices comprises compositions and containers of hermetically sealed luminescent nanocrystals. The present invention also provides displays comprising the LED devices. Suitably, the LED devices are white light LED devices.
Abstract: The present invention provides light-emitting diode (LED) devices comprises compositions and containers of hermetically sealed luminescent nanocrystals. The present invention also provides displays comprising the LED devices. Suitably, the LED devices are white light LED devices.
Abstract: The present invention relates to treating of reflective surfaces to prevent fouling. The present invention also relates to reflective materials treated to prevent fouling, as well as methods of using such reflective materials.
Abstract: The present invention discloses nanowires for use in a fuel cell comprising a metal catalyst deposited on a surface of the nanowires. A membrane electrode assembly for a fuel cell is disclosed which generally comprises a proton exchange membrane, an anode electrode, and a cathode electrode, wherein at least one or more of the anode electrode and cathode electrode comprise an interconnected network of the catalyst supported nanowires. Methods are also disclosed for preparing a membrane electrode assembly and fuel cell based upon an interconnected network of nanowires.
Type:
Grant
Filed:
July 17, 2012
Date of Patent:
May 14, 2013
Assignee:
Nanosys, Inc.
Inventors:
Chunming Niu, Calvin Y. H. Chow, Stephen A. Empedocles, J. Wallace Parce
Abstract: The present invention relates to treating of reflective surfaces to prevent fouling. The present invention also relates to reflective materials treated to prevent fouling, as well as methods of using such reflective materials.