Patents by Inventor Zhenan Bao

Zhenan Bao 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).

  • Polar elastomers for high performance electronic and optoelectronic devices
    Patent number: 9954191
    Abstract: An electronic or optoelectronic device includes: (1) a semiconductor layer; (2) a pair of electrodes electrically coupled to the semiconductor layer; and (3) a dielectric layer in contact with the semiconductor layer and including a polar elastomer, where the elastomer has a glass transition temperature Tg that is no greater than 25° C.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 24, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zhenan Bao, Chao Wang, Wen Ya Lee, Guillaume Schweicher, Desheng Kong
  • Coated substrate apparatus and method
    Patent number: 9863057
    Abstract: A coated substrate is formed with aligned objects such as small molecules, macromolecules and nanoscale particulates, such as inorganic, organic or inorganic/organic hybrid materials. In accordance with one or more embodiments, an apparatus or method involves an applicator having at least one surface patterned with protruded or indented features, and a coated substrate including a solution-based layer of objects having features and morphology attributes arranged as a function of the protruded or indented features.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: January 9, 2018
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zhenan Bao, Ying Diao, Stefan Christian Bernhardt Mannsfeld, Chee-Keong Tee, Hector A. Becerril-Garcia, Yan Zhou
  • Passive and wireless pressure sensor
    Patent number: 9848775
    Abstract: Aspects of the present disclosure are directed to pressure sensing. As may be implemented in accordance with one or more embodiments, an external energy field is applied to a resonant circuit having inductive conductors separated by a compressible dielectric, for wirelessly detecting pressure. Specifically, the resonant circuit is responsive to the energy field and applied pressures by operating in respective states exhibiting different resonant frequencies that are based upon pressure-related compression of the compressible dielectric. These resonant frequencies, or a change in the resonant frequencies, can be used as an indication of the pressure.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: December 26, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Chee-Keong Tee, Lisa Yun Chen, Zhenan Bao, Darren Lipomi, Michael V. McConnell, H. S. Philip Wong
  • POLYMER AND ELECTRONIC DEVICE AND ORGANIC THIN FILM TRANSISTOR INCLUDING THE SAME
    Publication number: 20170346013
    Abstract: A polymer includes a first repeating unit and a second repeating unit forming a main chain, the first repeating unit including at least one first conjugated system, and the second repeating unit including at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1.
    Type: Application
    Filed: May 27, 2016
    Publication date: November 30, 2017
    Applicants: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jong Won CHUNG, Sangyoon LEE, Zhenan BAO, Simon RONDEAU-GAGNE, Bob C. SCHROEDER, Jinyoung OH, Yu-cheng CHIU, Franziska LISSEL
  • POLYMERIC DIELECTRICS, METHODS OF MANUFACTURING THE SAME, AND ELECTRONIC DEVICES AND THIN FILM TRANSISTORS INCLUDING THE SAME
    Publication number: 20170331057
    Abstract: A polymeric dielectric may include a coordination complex of a modified elastic polymer and a metal cation. The modified elastic polymer may include an organic ligand moiety that coordinates the metal cation in a main chain of the elastic polymer. Provided are a method of manufacturing the same, and an electronic device and a thin film transistor including the same.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 16, 2017
    Applicants: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Jr. University
    Inventors: Jong Won CHUNG, Sangyoon LEE, Ying-Li RAO, Zhenan BAO
  • ORGANIC SEMICONDUCTOR THIN FILM AND METHOD OF MANUFACTURING THE SAME AND THIN FILM TRANSISTOR AND ELECTRONIC DEVICE
    Publication number: 20170331045
    Abstract: Disclosed are an organic semiconductor thin film, a manufacturing method thereof, and a thin film transistor and an electronic device including the organic semiconductor thin film. The organic semiconductor thin film includes a matrix. The matrix includes an elastomer and nanoconfined polymer structures embedded in the matrix. The nanoconfined polymer structures form a polymer network. The nanoconfined polymer structures include a conjugation semiconductor polymer. The conjugation semiconductor polymer includes a repeating unit having at least one conjugation system in its main chain. The nanoconfined polymer structures are present in an upper surface layer and a lower surface layer of the organic semiconductor thin film respectively.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 16, 2017
    Applicants: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Jr. University
    Inventors: Jong Won CHUNG, Sangyoon Lee, Zhenan Bao, Jie Xu
  • SORTING OF CARBON NANOTUBES
    Publication number: 20170229657
    Abstract: Provided is a process for preparing a composition comprising semiconducting single-walled carbon nanotubes, a semiconducting polymer and solvent A (composition A), which process comprises the step of separating composition A from a composition comprising semiconducting and metallic single-walled carbon nanotubes, the semiconducting polymer and solvent B (composition B), wherein the semiconducting polymer has a band gap in the range of 0.5 to 1.8 eV and solvent A and B comprise an aromatic or a heteroaromatic solvent, composition A itself, a process for forming an electronic device, which process comprises the step of forming a layer by applying composition A to a precursor of the electronic device, as well as the electronic device obtainable by this process.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 10, 2017
    Inventors: Zhenan BAO, Lei TING, Lai YING-CHIH, Huiliang WANG, Pascal HAYOZ, Thomas WEITZ
  • Conjugated polymer-based apparatuses, articles and compounds
    Patent number: 9725557
    Abstract: Various aspects of the present disclosure are directed to conjugated polymers, their manufacture and their implementations. As may be implemented in connection with one or more embodiments, an apparatus includes a conjugated polymer and a side chain or end chain material connected to the conjugated polymer. The amount and makeup of the side chain or end chain enhance solubility of the resulting modified conjugated polymer, relative to the conjugated polymer itself.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 8, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zhenan Bao, Lei Fang, Jianguo Mei, Yan Zhou
  • SELF-HEALING POLYMERS AND APPLICATIONS THEREOF
    Publication number: 20170174842
    Abstract: A self-healing polymer includes metal ions and a polymer network including polymer chains cross-linked through coordination bonds with the metal ions. Each polymer chain includes ligands within a backbone of the polymer chain, and the ligands include metal ion coordination sites.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Applicants: The Board of Trustees of the Leland Stanford Junior University, Nanjing University
    Inventors: Chao Wang, Cheng-Hui Li, Zhenan Bao
  • Interface apparatus and methods
    Patent number: 9677952
    Abstract: Input devices are provided. In accordance with an example embodiment, an input device includes an interface layer that flexes in response to pressure, a plurality of sense electrodes, a dielectric between the sense electrodes and the interface layer, and interconnecting circuitry. The dielectric compresses or expands in response to movement of the interface layer, and exhibits dielectric characteristics that vary based upon a state of compression of the dielectric. The interconnecting circuitry is to the sense electrodes and provides an output indicative of both the position of each sense electrode and an electric characteristic at each sense electrode that provides an indication of pressure applied to the dielectric adjacent the respective sense electrodes.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: June 13, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zhenan Bao, Chee-Keong Tee, Stefan Christian Bernhardt Mannsfeld, Justin P. Opatkiewicz
  • METHODS AND APPARATUS CONCERNING SOLUTION SHEARING A TRANSPARENT AND CONDUCTIVE POLYMER FILM
    Publication number: 20170114240
    Abstract: Various embodiments include apparatus and methods of forming an apparatus using a solution shearing process. An example method includes providing a shearing blade on a portion of a substrate coated with a polymeric conductor material and controlling generation of a transparent and conductive polymer film on the substrate by moving the shearing blade in a direction, to generate shear stress to the polymeric conductor material, and according to shearing deposition parameters.
    Type: Application
    Filed: October 27, 2016
    Publication date: April 27, 2017
    Inventors: Zhenan Bao, Sean C. Andrews, Brian J. Worfolk, Stefan C. B. Mannsfeld
  • Methods and apparatus concerning multi-tactile sensitive (E-skin) pressure sensors
    Patent number: 9625330
    Abstract: Various aspects as described herein are directed to electronic skin pressure sensors and methods of using the same. As consistent with one or more embodiments, an apparatus includes an electronic skin pressure sensor and sensor circuitry. The electronic skin device is configured and arranged for differentiating between different mechanical stimuli including lateral stress and at least one additional mechanical stimuli. The sensor circuitry is configured and arranged to respond to the electronic skin pressure sensor by sensing a change in impedance due to the lateral stress.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 18, 2017
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Steve J. Park, Zhenan Bao
  • POLAR ELASTOMERS FOR HIGH PERFORMANCE ELECTRONIC AND OPTOELECTRONIC DEVICES
    Publication number: 20170098791
    Abstract: An electronic or optoelectronic device includes: (1) a semiconductor layer; (2) a pair of electrodes electrically coupled to the semiconductor layer; and (3) a dielectric layer in contact with the semiconductor layer and including a polar elastomer, where the elastomer has a glass transition temperature Tg that is no greater than 25° C.
    Type: Application
    Filed: April 16, 2015
    Publication date: April 6, 2017
    Inventors: Zhenan Bao, Chao Wang, Wen Ya Lee, Guillaume Schweicher, Desheng Kong
  • Solar cell having organic nanowires
    Patent number: 9608221
    Abstract: Example embodiments relate to a solar cell including organic nanowires. The solar cell may include a photoelectric conversion layer formed of a p-type material including an organic material and an n-type material including organic nanowires.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: March 28, 2017
    Assignees: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Young-jun Park, Zhenan Bao, Joon-hak Oh
  • HIGH PERFORMANCE BATTERY ANODES WITH POLYMERIC COATINGS
    Publication number: 20170062830
    Abstract: A battery includes an anode, a cathode, and an electrolyte disposed between the anode and the cathode. The anode includes a current collector and an interfacial layer disposed over the current collector, and the interfacial layer includes a polymer including dynamic bonds.
    Type: Application
    Filed: August 30, 2016
    Publication date: March 2, 2017
    Inventors: Zhenan Bao, Yi Cui, Guangyuan Zheng, Chao Wang, Jeffrey Lopez, Allen Pei
  • METHODS AND APPARATUS CONCERNING SENSITIVE FORCE SENSORS
    Publication number: 20170031491
    Abstract: Embodiments in accordance with the present disclosure include apparatuses, devices, and methods. For example, an apparatus includes an electronic force sensor having a first opposing electrode and a second opposing electrode. The first and second opposing electrodes are configured to generate an output indicative of a force applied to the electronic force sensor. The electronic force sensor further includes a plurality of recoverably-deformable structures arranged between the first and the second opposing electrodes and having a plurality of conductive-resistive elements. Each of the recoverably-deformable structures including at least one of a variable conductor and a variable resistor and configured and arranged with attributes that set a force sensitivity of the electronic force sensor.
    Type: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: Zhenan Bao, Alex L. Chortos, Ho-Hsiu Chou
  • METHOD OF SELECTIVE SEPARATION OF SEMICONDUCTING CARBON NANOTUBES, DISPERSION OF SEMICONDUCTING CARBON NANOTUBES, AND ELECTRONIC DEVICE INCLUDING CARBON NANOTUBES SEPARATED BY USING THE METHOD
    Publication number: 20170033292
    Abstract: According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain includes an alkyl group containing a carbon number of 7 or greater. The hydrocarbon sidechain may be regioregularly arranged, and the semiconducting carbon nanotubes are selectively separated from the mixed solution. An electronic device includes semiconducting carbon nanotubes and the foregoing described polythiophene derivative.
    Type: Application
    Filed: October 11, 2016
    Publication date: February 2, 2017
    Applicants: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Jr. University
    Inventors: Young-jun PARK, Jong-min KIM, Hang-woo LEE, Zhenan BAO
  • Patterning of organic semiconductor materials
    Patent number: 9520563
    Abstract: Organic semiconductor material can be patterned from a solution onto a substrate by selectively wetting the substrate with the solution while applying a mechanical disturbance (such as stirring the solution while the substrate is immersed, or wiping the solution on the substrate). The organic semiconductor material can then be precipitated out of the solution, for example to bridge gaps between source and drain electrodes to form transistor devices. In some embodiments, the solution containing the organic semiconductor material can be mixed in an immiscible host liquid. This can allow the use of higher concentration solutions while also using less of the organic semiconductor material.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: December 13, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Stefan Christian Bernhardt Mannsfeld, Armon Sharei, Zhenan Bao
  • Method of selective separation of semiconducting carbon nanotubes, dispersion of semiconducting carbon nanotubes, and electronic device including carbon nanotubes separated by using the method
    Patent number: 9502152
    Abstract: According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain includes an alkyl group containing a carbon number of 7 or greater. The hydrocarbon sidechain may be regioregularly arranged, and the semiconducting carbon nanotubes are selectively separated from the mixed solution. An electronic device includes semiconducting carbon nanotubes and the foregoing described polythiophene derivative.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: November 22, 2016
    Assignees: Samsung Electronics Co., Ltd., The Board of Trustees of the Leland Stanford Jr. University
    Inventors: Young-jun Park, Jong-min Kim, Hang-Woo Lee, Zhenan Bao
  • Self-healing composites and applications thereof
    Patent number: 9490045
    Abstract: A battery electrode includes an electrochemically active material and a binder covering the electrochemically active material. The binder includes a self-healing polymer and conductive additives dispersed in the self-healing polymer to provide an electrical pathway across at least a portion of the binder.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 8, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Chee Keong Tee, Chao Wang, Hui Wu, Yi Cui, Zhenan Bao