Patents by Inventor Zhengguo Zhu

Zhengguo Zhu 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).

  • Patent number: 8598449
    Abstract: Disclosed are certain oligomeric and polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide high power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: December 3, 2013
    Assignee: Polyera Corporation
    Inventors: Hualong Pan, He Yan, Yan Yao, Shaofeng Lu, Zhengguo Zhu, Antonio Facchetti
  • Patent number: 8598450
    Abstract: Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, field effect transistors, and photodetectors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: December 3, 2013
    Assignee: Polyera Corporation
    Inventors: Hualong Pan, Martin Drees, Zhengguo Zhu, Yan Yao, Shaofeng Lu, Antonio Facchetti
  • Patent number: 8563678
    Abstract: Photovoltaic cells with thiazole-containing polymers, as well as related components, systems, and methods, are disclosed.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: October 22, 2013
    Assignee: Merck Patent GmbH
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Publication number: 20130271090
    Abstract: Embodiments described herein relate to compositions, devices, and methods for storage of energy (e.g., electrical energy). In some cases, devices including polyacetylene-containing polymers are provided.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 17, 2013
    Inventors: Ian W. Hunter, Timothy M. Swager, Zhengguo Zhu
  • Publication number: 20130273247
    Abstract: A method for preparing semiconductor nanocrystals is disclosed. The method comprises adding a precursor mixture comprising one or more cation precursors, one or more anion precursors, and one or more amines to a ligand mixture including one or more acids, one or more phenol compounds, and a solvent to form a reaction mixture, wherein the molar ratio of (the one or more phenol compounds plus the one or more acids plus the one or more amine compounds) to the one or more cations initially included in the reaction mixture is greater than or equal to about 6, and heating the reaction mixture at a temperature and for a period of time sufficient to produce semiconductor nanocrystals having a predetermined composition. Methods for forming a buffer layer and/or an overcoating layer thereover are also disclosed. Semiconductor nanocrystals and compositions including semiconductor nanocrystals of the invention are also disclosed.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Inventors: Justin W. KAMPLAIN, Zhengguo ZHU
  • Patent number: 8455606
    Abstract: Novel photoactive polymers, as well as related components, articles, systems, and methods are disclosed.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: June 4, 2013
    Assignee: Merck Patent GmbH
    Inventors: Zhengguo Zhu, David Waller
  • Publication number: 20130098448
    Abstract: Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 25, 2013
    Inventors: Zhengguo Zhu, Martin Drees, Hualong Pan, Yan Yao, He Yan, Shaofeng Lu, Antonio Facchetti
  • Publication number: 20130069018
    Abstract: A method for preparing semiconductor nanocrystals comprises reacting cation precursors and anion precursors in a reaction mixture including one or more acids, one or more phenol compounds, and a solvent to produce semiconductor nanocrystals having a predetermined composition. A method for forming a coating on at least a portion of a population of semiconductor nanocrystals is also disclosed. The method comprises forming a first mixture including a population of semiconductor nanocrystals, one or more amine compounds, and a first solvent; adding cation precursors and anion precursors to the first mixture at a temperature sufficient for growing a semiconductor material on at least a portion of an outer surface of at least a portion of the population of semiconductor nanocrystals; and initiating addition of one or more acids to the first mixture after addition of the cation and anion precursors is initiated. Semiconductor nanocrystals and populations thereof are also disclosed.
    Type: Application
    Filed: August 10, 2012
    Publication date: March 21, 2013
    Inventors: ZHENGGUO ZHU, Jonathan S. Steckel, Craig Breen, Justin W. Kamplain, Inia Song, Chunming Wang
  • Patent number: 8334456
    Abstract: Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: December 18, 2012
    Assignee: Polyera Corporation
    Inventors: Zhengguo Zhu, Martin Drees, Hualong Pan, Yan Yao, He Yan, Shaofeng Lu, Antonio Facchetti
  • Patent number: 8298830
    Abstract: The present invention generally relates to polymers with lasing characteristics that allow the polymers to be useful in detecting analytes. In one aspect, the polymer, upon an interaction with an analyte, may exhibit a change in a lasing characteristic that can be determined in some fashion. For example, interaction of an analyte with the polymer may affect the ability of the polymer to reach an excited state that allows stimulated emission of photons to occur, which may be determined, thereby determining the analyte. In another aspect, the polymer, upon interaction with an analyte, may exhibit a change in stimulated emission that is at least 10 times greater with respect to a change in the spontaneous emission of the polymer upon interaction with the analyte. The polymer may be a conjugated polymer in some cases. In one set of embodiments, the polymer includes one or more hydrocarbon side chains, which may be parallel to the polymer backbone in some instances.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: October 30, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Aimee Rose, Timothy M. Swager, Zhengguo Zhu, Vladimir Bulovic, Conor Francis Madigan
  • Publication number: 20120186652
    Abstract: Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, field effect transistors, and photodetectors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Application
    Filed: November 24, 2011
    Publication date: July 26, 2012
    Inventors: Hualong Pan, Martin Drees, Zhengguo Zhu, Yan Yao, Shaofeng Lu, Antonio Facchetti
  • Publication number: 20120187385
    Abstract: Disclosed are certain oligomeric and polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide high power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Application
    Filed: November 21, 2011
    Publication date: July 26, 2012
    Inventors: Hualong Pan, He Yan, Yan Yao, Shaofeng Lu, Zhengguo Zhu, Antonio Facchetti
  • Publication number: 20110290324
    Abstract: Photovoltaic cells with thiazole-containing polymers, as well as related components, systems, and methods, are disclosed.
    Type: Application
    Filed: July 26, 2011
    Publication date: December 1, 2011
    Applicant: Konarka Technologies, Inc.
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Publication number: 20110284080
    Abstract: Photovoltaic cells with silole-containing polymers, as well as related systems, methods and components are disclosed.
    Type: Application
    Filed: July 26, 2011
    Publication date: November 24, 2011
    Applicant: Konarka Technologies, Inc.
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Patent number: 8058550
    Abstract: This disclosure relates to a polymer that includes a first comonomer repeat unit containing a benzothiadiazole moiety, a thiophene oxide moiety, a cyclopentadithiophene oxide moiety, a thiadiazoloquinoxaline moiety, a benzoisothiazole moiety, a benzothiazole moiety, a thienothiophene moiety, a thienothiophene oxide moiety, a dithienothiophene moiety, a dithienothiophene oxide moiety, or a tetrahydroisoindole moiety. The polymer can be used as a photoactive material in a photovoltaic cell. This disclosure also relates to such photovoltaic cells, as well as modules containing such photovoltaic cells.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 15, 2011
    Assignee: Konarka Technologies, Inc.
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Patent number: 8008424
    Abstract: Photovoltaic cells with thiazole-containing polymers, as well as related components, systems, and methods, are disclosed.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: August 30, 2011
    Assignee: Konarka Technologies, Inc.
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Patent number: 8008421
    Abstract: Photovoltaic cells with silole-containing polymers, as well as related systems, methods and components are disclosed.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: August 30, 2011
    Assignee: Konarka Technologies, Inc.
    Inventors: Russell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
  • Patent number: 7875205
    Abstract: A photovoltaic cell has two electrodes and a hole injection layer. A liquid crystal material and a plurality of particles can be disposed between the electrodes.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: January 25, 2011
    Assignees: Konarka Technologies, Inc., University of Delaware
    Inventors: Mary E. Galvin, Russell Gaudiana, David Waller, Zhengguo Zhu
  • Publication number: 20100307594
    Abstract: Disclosed are certain polymeric compounds and their use as organic semiconductors in organic and hybrid optical, optoelectronic, and/or electronic devices such as photovoltaic cells, light emitting diodes, light emitting transistors, and field effect transistors. The disclosed compounds can provide improved device performance, for example, as measured by power conversion efficiency, fill factor, open circuit voltage, field-effect mobility, on/off current ratios, and/or air stability when used in photovoltaic cells or transistors. The disclosed compounds can have good solubility in common solvents enabling device fabrication via solution processes.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 9, 2010
    Inventors: Zhengguo Zhu, Martin Drees, Hualong Pan, Yan Yao, He Yan, Shaofeng Lu, Antonio Facchetti
  • Publication number: 20100310424
    Abstract: The present invention generally relates to polymers with lasing characteristics that allow the polymers to be useful in detecting analytes. In one aspect, the polymer, upon an interaction with an analyte, may exhibit a change in a lasing characteristic that can be determined in some fashion. For example, interaction of an analyte with the polymer may affect the ability of the polymer to reach an excited state that allows stimulated emission of photons to occur, which may be determined, thereby determining the analyte. In another aspect, the polymer, upon interaction with an analyte, may exhibit a change in stimulated emission that is at least 10 times greater with respect to a change in the spontaneous emission of the polymer upon interaction with the analyte. The polymer may be a conjugated polymer in some cases. In one set of embodiments, the polymer includes one or more hydrocarbon side chains, which may be parallel to the polymer backbone in some instances.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 9, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Aimee Rose, Timothy M. Swager, Zhengguo Zhu, Vladimir Bulovic, Conor F. Madigan