Patents by Inventor Che-Hsiung Hsu

Che-Hsiung Hsu 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).

  • Electrically conductive polymer compositions
    Patent number: 7638072
    Abstract: Electrically conducting polymer compositions are provided. The compositions comprise homopolymers and copolymers of polythiophene, polypyrrole, polyaniline, and polycyclic heteroaromatics, and combinations of those, in admixture with an organic solvent wettable fluorinated acid polymer. The acid polymers are fluorinated or highly fluorinated and have acidic groups including carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions may be used in organic electronic devices (OLEDs).
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: December 29, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Ian Storms Moody, Sunghan Kim
  • ORGANIC CONDUCTIVE COMPOSITIONS AND STRUCTURES
    Publication number: 20090250665
    Abstract: Compositions comprising at least one conductive polymer and an organic cation are provided, and methods for making the same.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 8, 2009
    Inventors: Che-Hsiung Hsu, Ed Sundaram Ramakrishnan, Dmitry Kolosov
  • Organic conductive compositions and structures
    Patent number: 7563392
    Abstract: Compositions comprising at least one conductive polymer and an organic cation are provided, and methods for making the same.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: July 21, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Ed Sundaram Ramakrishnan, Dmitry Kolosov
  • FIBERS AND RIBBONS FOR USE IN THE MANUFACTURE OF SOLAR CELLS
    Publication number: 20090146110
    Abstract: This invention is directed to a process for the fabrication of features on a silicon wafer utilizing ribbons comprising organic polymer and inorganic material.
    Type: Application
    Filed: February 11, 2009
    Publication date: June 11, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: ALAN FREDERICK CARROLL, Christopher John Roach, Che-Hsiung Hsu
  • AQUEOUS DISPERSIONS OF ELECTRICALLY CONDUCTING POLYMERS CONTAINING HIGH BOILING SOLVENT AND ADDITIVES
    Publication number: 20090114884
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion of at least one electrically conductive polymer doped with a non-fluorinated polymeric acid, at least one high-boiling polar organic solvent, and an additive selected from the group consisting of fullerenes, carbon nanotubes, and combinations thereof.
    Type: Application
    Filed: May 15, 2008
    Publication date: May 7, 2009
    Inventor: Che-Hsiung Hsu
  • WATER DISPERSIBLE POLYANILINES MADE WITH POLYMERIC ACID COLLOIDS FOR ELECTRONICS APPLICATIONS
    Publication number: 20090072201
    Abstract: Methods are provided to producing stable, aqueous dispersions of polyaniline and colloid-forming polymeric acids. Films from the disclosed compositions are useful as buffer layers, in organic electronic devices including electroluminescent devices, such as organic light emitting diodes (OLED) displays. Films cast from the compositions are also useful in combination with nanometal wires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.
    Type: Application
    Filed: November 21, 2008
    Publication date: March 19, 2009
    Inventors: Che-Hsiung Hsu, Frank P. Uckert
  • Fibers and ribbons for use in the manufacture of solar cells
    Patent number: 7491442
    Abstract: This invention is directed to a process for the fabrication of features on a silicon wafer utilizing ribbons comprising organic polymer and inorganic material.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: February 17, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Alan Frederick Carroll, Christopher John Roach, Che-Hsiung Hsu
  • Derivatized 3,4-Alkylenedioxythiophene Monomers, Methods of Making Them, and Use Thereof
    Publication number: 20090008609
    Abstract: The present invention relates to methods of making derivatized 3,4-alkylenedioxythiophene monomers and methods of using the 3,4-alkylenedioxythiophene monomers.
    Type: Application
    Filed: December 23, 2005
    Publication date: January 8, 2009
    Applicant: E.I. du Pont de Nemours and Company
    Inventors: Shawn Yeisley, Charles J. Dubois, JR., Che-Hsiung Hsu, Steven W. Shuey, Yulong Shen, Hjalti Skulason
  • Water dispersible polyanilines made with polymeric acid colloids for electronics applications
    Patent number: 7462298
    Abstract: Compositions are provided comprising aqueous dispersions of polyaniline and colloid-forming polymeric acids. Films from invention compositions are useful as buffer layers, in organic electronic devices including electroluminescent devices, such as organic light emitting diodes (OLED) displays. Films cast from invention compositions are also useful in combination with metal metalwires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: December 9, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Frank P. Uckert
  • WATER DISPERSIBLE POLYTHIOPHENES MADE WITH POLYMERIC ACID COLLOIDS
    Publication number: 20080296536
    Abstract: Compositions are provided comprising a continuous liquid aqueous medium having dispersed therein a polydioxythiophene and at least one colloid-forming fluorinated polymeric acid. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays.
    Type: Application
    Filed: July 29, 2008
    Publication date: December 4, 2008
    Inventors: CHE-HSIUNG HSU, YONG CAO, SUNGHAN KIM, DANIEL DAVID LECLOUX, CHI ZHANG
  • Non-aqueous dispersions comprising electrically doped conductive polymers and colloid-forming polymeric acids
    Patent number: 7455793
    Abstract: Compositions, and methods of making, are provided comprising non-aqueous dispersions of at least one doped conductive polymer and at least one colloid-forming polymeric acid, wherein the conductive polymer is selected from a polythiophene, a polypyrrole, a polyaniline, and combinations thereof. Electronic devices and other applications having at least one layer made from at least one such compositions are further provided.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: November 25, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Ralph Birchard Lloyd
  • ELECTRICALLY CONDUCTIVE POLYMER COMPOSITIONS AND FILMS MADE THEREFROM
    Publication number: 20080283800
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions are an aqueous dispersion including: (1) at least one electrically conductive polymer doped with a non-fluorinated polymeric acid; (2) at least one highly-fluorinated acid polymer; (3) at least one high-boiling polar organic solvent, and (4) an additive which can be one or more of fullerenes, carbon nanotubes, or combinations thereof.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Inventor: CHE HSIUNG HSU
  • ELECTRICALLY CONDUCTIVE POLYMER COMPOSITIONS
    Publication number: 20080251768
    Abstract: The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include (i) an intrinsically conductive polymer having at least one monomer unit which is a pyridine-fused heteroaromatic and (ii) a fluorinated acid polymer.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Inventors: CHE-HSIUNG HSU, Hjalti Skulason
  • WATER DISPERSIBLE POLYTHIOPHENES MADE WITH POLYMERIC ACID COLLOIDS
    Publication number: 20080248314
    Abstract: Devices are provided comprising conductive or semiconductive layers comprising compositions comprising aqueous dispersions of polythiophenes having homopolymers or co-polymers of Formula I(a) or Formula I(b) and at least one colloid-forming polymeric acid. Methods of making such compositions and using them in organic electronic devices are further provided.
    Type: Application
    Filed: May 13, 2008
    Publication date: October 9, 2008
    Inventors: Che-Hsiung Hsu, Yong Cao, SungHan Kim, Daniel David Lecloux, Huawen Li, Charles Douglas Macpherson, Chi Zhang, Hjalti Skulason
  • Water dispersible polythiophenes made with polymeric acid colloids
    Patent number: 7431866
    Abstract: Compositions are provided comprising aqueous dispersions of polythiophenes and colloid-forming polymeric acids. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays in combination with metal nanowires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: October 7, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Yong Cao, Sunghan Kim, Daniel David Lecloux, Chi Zhang
  • COMPOSITIONS OF POLYANILINE MADE WITH PERFUOROPOLYMERIC ACID WHICH ARE HEAT-ENHANCED AND ELECTRONIC DEVICES MADE THEREWITH
    Publication number: 20080210909
    Abstract: Electrically conductive dispersions of high pH polyaniline/perfluorosulfonic acid or perfluoroalkylene sulfonamide polymers are provided. Also provided are films made with such dispersions having enhanced electrical conductivity. Devices are provided with at least one layer comprised of a film that is baked at a temperature above 100° C. Further provided are processes for making films and layers for devices comprising such films.
    Type: Application
    Filed: December 20, 2007
    Publication date: September 4, 2008
    Inventors: CHE-HSIUNG HSU, Hjalti Skulason
  • LASER (230NM) ABLATABLE COMPOSITIONS OF ELECTRICALLY CONDUCTING POLYMERS MADE WITH A PERFLUOROPOLYMERIC ACID APPLICATIONS THEREOF
    Publication number: 20080213594
    Abstract: An aqueous composition including (a) a dispersion of at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer and (b) a second material which can be a second polymeric acid, an acid salt of the second polymeric acid, or a combination thereof.
    Type: Application
    Filed: December 20, 2007
    Publication date: September 4, 2008
    Inventor: CHE-HSIUNG HSU
  • WATER DISPERSIBLE POLYANILINES MADE WITH POLYMERIC ACID COLLOIDS FOR ELECTRONICS APPLICATIONS
    Publication number: 20080210910
    Abstract: An electronic device is provided which is a thin field effect transistor, a field effect resistance device, photosensor, photoswitch, light-emitting diode, light-emitting diode display, phototransistor, phototube, IR detector, diode laser, electrochemic displays, electromagnetic shielding device, solid electrolyte capacitors, energy storage device, memory storage device, biosensor, photoconductive cell, photovoltaic device, solar cell or diode, and comprises at least one layer comprising a composition comprising at least one polyaniline and at least one colloid-forming polymeric acid. Methods for making such devices are also provided.
    Type: Application
    Filed: April 4, 2008
    Publication date: September 4, 2008
    Inventors: Che-Hsiung Hsu, Frank P. Uckert
  • HIGH WORK-FUNCTION AND HIGH CONDUCTIVITY COMPOSITIONS OF ELECTRICALLY CONDUCTING POLYMERS
    Publication number: 20080191172
    Abstract: Provided are compositions having high conductivity and high work-function. The compositions comprise an aqueous dispersion or solution of an electrically conducting polymer and a perfluorinated polymeric acid. The conductive polymers may be made from conjugated monomers or comonomers and a non-fluorinated polymeric acid, and the perfluorinated polymeric acids may be derived from perfluoroolefins having perfluoro-ether-sulfonic acid side chains. Devices embodying such compositions are also provided.
    Type: Application
    Filed: December 19, 2007
    Publication date: August 14, 2008
    Inventor: CHE-HSIUNG HSU
  • COMPOSITIONS OF ELECTRICALLY CONDUCTING POLYMERS MADE WITH ULTRA-PURE FULLY -FLUORINATED ACID POLYMERS
    Publication number: 20080193773
    Abstract: There is provided an electrically conductive polymer composition. The composition contains an electrically conductive polymer made with an ultra-pure fully-fluorinated acid polymer.
    Type: Application
    Filed: December 19, 2007
    Publication date: August 14, 2008
    Inventors: CHE-HSIUNG HSU, Mark T. Martello, Hjalti Skulason