Patents by Inventor Brian Korgel
Brian Korgel 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: 11222989Abstract: Methods of making a semiconductor layer from nanocrystals are disclosed. A film of nanocrystals capped with a ligand can be deposited onto a substrate; and the nanocrystals can be irradiated with one or more pulses of light. The pulsed light can be used to substantially remove the ligands from the nanocrystals and leave the nanocrystals unsintered or sintered, thereby providing a semiconductor layer. Layered structures comprising these semiconductor layers with an electrode are also disclosed. Devices comprising such layered structures are also disclosed.Type: GrantFiled: February 13, 2020Date of Patent: January 11, 2022Assignee: Board of Regents, The University of Texas SystemInventors: Brian A. Korgel, Taylor B. Harvey, Carl Jackson Stolle, Vahid Akhavan
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Publication number: 20210028324Abstract: Described are flexible electronics incorporating a bacterial cellulose paper substrate and methods of making and using the flexible electronics. Example devices disclosed include photovoltaic cells constructed over bacterial cellulose paper substrates.Type: ApplicationFiled: October 1, 2020Publication date: January 28, 2021Applicant: Board of Regents, The University of Texas SystemInventors: Brian A. Korgel, Vikas Reddy Voggu, James Sham, R. Malcolm Brown, Taylor B. Harvey
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Publication number: 20200259028Abstract: Methods of making a semiconductor layer from nanocrystals are disclosed. A film of nanocrystals capped with a ligand can be deposited onto a substrate; and the nanocrystals can be irradiated with one or more pulses of light. The pulsed light can be used to substantially remove the ligands from the nanocrystals and leave the nanocrystals unsintered or sintered, thereby providing a semiconductor layer. Layered structures comprising these semiconductor layers with an electrode are also disclosed. Devices comprising such layered structures are also disclosed.Type: ApplicationFiled: February 13, 2020Publication date: August 13, 2020Inventors: Brian A. Korgel, Taylor B. Harvey, Carl Jackson Stolle, Vahid Akhavan
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Patent number: 10593821Abstract: Methods of making a semiconductor layer from nanocrystals are disclosed. A film of nanocrystals capped with a ligand can be deposited onto a substrate; and the nanocrystals can be irradiated with one or more pulses of light. The pulsed light can be used to substantially remove the ligands from the nanocrystals and leave the nanocrystals unsintered or sintered, thereby providing a semiconductor layer. Layered structures comprising these semiconductor layers with an electrode are also disclosed. Devices comprising such layered structures are also disclosed.Type: GrantFiled: September 12, 2015Date of Patent: March 17, 2020Assignee: Board of Regents, The University of Texas SystemInventors: Brian A. Korgel, Taylor B. Harvey, Carl Jackson Stolle, Vahid Akhavan
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Patent number: 10557855Abstract: Systems comprising a nanocrystal and a luminescent chromophore are disclosed herein. The luminescent chromophore can emit energy having a first wavelength. The luminescent chromophore is configured to transfer the emitted energy having a first wavelength to the nanocrystal. The luminescent chromophore can be linked to the nanocrystal via a covalent bond. Absorption of the energy having first wavelength by the nanocrystal can activate the nanocrystal and result in an increase in quantum yield. In some embodiments, the nanocrystal can include silicon, germanium, carbon, or combinations thereof. In some examples, the luminescent chromophore can be pyrene. The luminescent chromophore and the silicon containing nanocrystal can be in a ratio of about 1:1 to 100:1 in the nanocrystal system. Methods of making and using the system are also disclosed.Type: GrantFiled: August 19, 2015Date of Patent: February 11, 2020Assignees: Board of Regents, The University of Texas System, Alma Mater Studiorum—Universita di BolognaInventors: Brian A. Korgel, Yixuan Yu, Paola Ceroni, Giacomo Bergamini, Mirko Locritani
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Publication number: 20190305158Abstract: Described are flexible electronics incorporating a bacterial cellulose paper substrate and methods of making and using the flexible electronics. Example devices disclosed include photovoltaic cells constructed over bacterial cellulose paper substrates.Type: ApplicationFiled: September 27, 2017Publication date: October 3, 2019Applicant: Board of Regents, The University of Texas SystemInventors: Brian A. Korgel, Vikas Reddy Voggu, James Sham, R. Malcolm Brown, Taylor B. Harvey
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Publication number: 20190181436Abstract: The subject matter disclosed herein relates generally to the field of the energy storage in Li-ion type batteries. More specifically, the subject matter disclosed herein relates to materials for the anode of a Li-ion battery, to their method of preparation and to their use in the anode of a Li-ion battery. Another subject matter disclosed herein are Li-ion batteries manufactured by incorporating the disclosed materials. Devices comprising the disclosed Li-ion batteries are also disclosed.Type: ApplicationFiled: December 3, 2018Publication date: June 13, 2019Inventors: Brian A. Korgel, Aaron Chockla, Timothy Bogart
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Patent number: 10038213Abstract: A method is provided for making a fabric. The method comprises (a) providing a composition comprising a plurality of nanocrystals disposed in a liquid medium, the nanocrystals comprising a material elected from the group consisting of a Group IV element; (b) applying the composition to a porous substrate, thereby removing at least a portion of the liquid medium from the nanocrystals; and (c) removing the nanocrystals from the porous substrate as a self-supporting mass.Type: GrantFiled: February 24, 2011Date of Patent: July 31, 2018Assignee: Pinion Technologies, Inc.Inventors: Brian A. Korgel, Damon A. Smith, Vincent C. Holmberg, Reken Patel, Paul Thurk
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Publication number: 20170269097Abstract: Systems comprising a nanocrystal and a luminescent chromophore are disclosed herein. The luminescent chromophore can emit energy having a first wavelength. The luminescent chromophore is configured to transfer the emitted energy having a first wavelength to the nanocrystal. The luminescent chromophore can be linked to the nanocrystal via a covalent bond. Absorption of the energy having first wavelength by the nanocrystal can activate the nanocrystal and result in an increase in quantum yield. In some embodiments, the nanocrystal can include silicon, germanium, carbon, or combinations thereof. In some examples, the luminescent chromophore can be pyrene. The luminescent chromophore and the silicon containing nanocrystal can be in a ratio of about 1:1 to 100:1 in the nanocrystal system. Methods of making and using the system are also disclosed.Type: ApplicationFiled: August 19, 2015Publication date: September 21, 2017Inventors: Brian A. Korgel, Yixuan Yu, Paola Ceroni, Giacomo Bergamini, Mirko Locritani
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Publication number: 20170250298Abstract: Methods of making a semiconductor layer from nanocrystals are disclosed. A film of nanocrystals capped with a ligand can be deposited onto a substrate; and the nanocrystals can be irradiated with one or more pulses of light. The pulsed light can be used to substantially remove the ligands from the nanocrystals and leave the nanocrystals unsintered or sintered, thereby providing a semiconductor layer. Layered structures comprising these semiconductor layers with an electrode are also disclosed. Devices comprising such layered structures are also disclosed.Type: ApplicationFiled: September 12, 2015Publication date: August 31, 2017Inventors: Brian A. Korgel, Taylor B. Harvey, Carl Jackson Stolle, Vahid Akhavan
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Patent number: 9291586Abstract: A sensor for detecting one or more materials includes a substrate, a passivation layer formed on the substrate, a self-resonant structure and a high surface area material disposed on the passivation layer. The self-resonant structure includes a planar spiral inductor and a plurality of planar interdigitated capacitor electrodes disposed within the passivation layer. The planar spiral inductor includes an electrically conductive trace formed on the substrate in a planar spiral pattern having at least two turns and an inter-winding space between parallel segments of the electrically conductive trace. The plurality of planar interdigitated capacitor electrodes are electrically connected to the electrically conductive trace of the planar spiral inductor and formed on the substrate within the inter-winding space of at least one outermost turn of the planar spiral inductor. The high surface area material includes a conformal polymer coating to increase a sensitivity to the one or more materials.Type: GrantFiled: May 5, 2013Date of Patent: March 22, 2016Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Dean P. Neikirk, Praveenkumar Pasupathy, Sheng Zhang, Brad Leonhardt, John G. Ekerdt, Brian A. Korgel, Vincent C. Holmberg, Catherine D. Shipman, Timothy D. Bogart, Aaron Chockla
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Patent number: 9249017Abstract: Nanorod and nanowire compositions are disclosed comprising copper indium selenide, copper indium gallium selenide, copper indium sulfide, or a combination thereof. Also disclosed are photovoltaic devices comprising the nanorod and/or nanowire compositions. Also disclosed are methods for producing the nanorod and nanowire compositions, and photovoltaic devices described herein.Type: GrantFiled: July 8, 2011Date of Patent: February 2, 2016Assignee: Board of Regents, The University of Texas SystemInventors: Brian A. Korgel, Chet Steinhagen
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Publication number: 20150188125Abstract: The subject matter disclosed herein relates generally to the field of the energy storage in Li-ion type batteries. More specifically, the subject matter disclosed herein relates to materials for the anode of a Li-ion battery, to their method of preparation and to their use in the anode of a Li-ion battery. Another subject matter disclosed herein are Li-ion batteries manufactured by incorporating the disclosed materials. Devices comprising the disclosed Li-ion batteries are also disclosed.Type: ApplicationFiled: July 22, 2013Publication date: July 2, 2015Inventors: Brian A. Korgel, Aaron Chockla, Timothy Bogart
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Patent number: 9064701Abstract: Methods synthesizing nanowires in solution at low temperatures (e.g., about 400° C. or lower) are provided. In the present methods, the nanowires are synthesized by exposing nanowire precursors to metal nanocrystals in a nanowire growth solution comprising a solvent. The metal nanocrystals serve as seed particles that catalyze the growth of the semiconductor nanowires. The metal nanocrystals may be formed in situ in the growth solution from metal nanocrystal precursors. Alternatively, the nanowires may be pre-formed and added to the growth solution.Type: GrantFiled: December 23, 2011Date of Patent: June 23, 2015Assignee: Merck Patent GmbHInventors: Dayne D. Fanfair, Brian A. Korgel
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Publication number: 20150123678Abstract: A sensor for detecting one or more materials includes a substrate, a passivation layer formed on the substrate, a self-resonant structure and a high surface area material disposed on the passivation layer. The self-resonant structure includes a planar spiral inductor and a plurality of planar interdigitated capacitor electrodes disposed within the passivation layer. The planar spiral inductor includes an electrically conductive trace formed on the substrate in a planar spiral pattern having at least two turns and an inter-winding space between parallel segments of the electrically conductive trace. The plurality of planar interdigitated capacitor electrodes are electrically connected to the electrically conductive trace of the planar spiral inductor and formed on the substrate within the inter-winding space of at least one outermost turn of the planar spiral inductor. The high surface area material includes a conformal polymer coating to increase a sensitivity to the one or more materials.Type: ApplicationFiled: May 5, 2013Publication date: May 7, 2015Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Dean P. Neikirk, Praveen K. Pasupathy, Sheng Zhang, Brad Leonhardt, John G. Ekerdt, Brian A. Korgel, Vincent C. Holmberg, Catherine D. Shipman, Timothy D. Bogart, Aaron Chockla
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Patent number: 8858707Abstract: A method for making silicon nanorods is provided. In accordance with the method, Au nanocrystals are reacted with a silane in a liquid medium to form nanorods, wherein each of said nanorods has an average diameter within the range of about 1.2 nm to about 10 nm and has a length within the range of about 1 nm to about 100 nm.Type: GrantFiled: April 14, 2010Date of Patent: October 14, 2014Assignee: Merck Patent GmbHInventors: Andrew T. Heitsch, Colin M. Hessel, Brian A. Korgel
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Patent number: 8618595Abstract: A method for the production of a robust, chemically stable, crystalline, passivated nanoparticle and composition containing the same, that emit light with high efficiencies and size-tunable and excitation energy tunable color. The methods include the thermal degradation of a precursor molecule in the presence of a capping agent at high temperature and elevated pressure. A particular composition prepared by the methods is a passivated silicon nanoparticle composition displaying discrete optical transitions.Type: GrantFiled: May 5, 2005Date of Patent: December 31, 2013Assignee: Merck Patent GmbHInventors: Brian A. Korgel, Keith P. Johnston, Katherine Brosh, Paul Thurk
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Publication number: 20130206232Abstract: Nanorod and nanowire compositions are disclosed comprising copper indium selenide, copper indium gallium selenide, copper indium sulfide, or a combination thereof. Also disclosed are photovoltaic devices comprising the nanorod and/or nanowire compositions. Also disclosed are methods for producing the nanorod and nanowire compositions, and photovoltaic devices described herein.Type: ApplicationFiled: July 8, 2011Publication date: August 15, 2013Applicant: Board of Regents of the University of Texas SystemInventors: Brian A. Korgel, Chet Steinhagen
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Patent number: 8163633Abstract: A method for the production of a robust, chemically stable, crystalline, passivated nanoparticle and composition containing the same, that emit light with high efficiencies and size-tunable and excitation energy tunable color. The methods include the thermal degradation of a precursor molecule in the presence of a capping agent at high temperature and elevated pressure. A particular composition prepared by the methods is a passivated silicon nanoparticle composition displaying discrete optical transitions.Type: GrantFiled: January 12, 2010Date of Patent: April 24, 2012Assignee: Merck Patent GmbHInventors: Brian A. Korgel, Keith P. Johnston
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Publication number: 20120091431Abstract: Methods synthesizing nanowires in solution at low temperatures (e.g., about 400° C. or lower) are provided. In the present methods, the nanowires are synthesized by exposing nanowire precursors to metal nanocrystals in a nanowire growth solution comprising a solvent. The metal nanocrystals serve as seed particles that catalyze the growth of the semiconductor nanowires. The metal nanocrystals may be formed in situ in the growth solution from metal nanocrystal precursors. Alternatively, the nanowires may be pre-formed and added to the growth solution.Type: ApplicationFiled: December 23, 2011Publication date: April 19, 2012Inventors: Dayne D. Fanfair, Brian A. Korgel