Patents by Inventor Y. Andrew Wang

Y. Andrew Wang 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: 9850426
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: December 26, 2017
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Patent number: 9340726
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: May 17, 2016
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Publication number: 20150108405
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 23, 2015
    Inventors: Xiaogang PENG, Jianqing LI, David BATTAGLIA, Y. Andrew WANG, Yunjun WANG
  • Patent number: 8900481
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 2, 2014
    Assignee: Board of Trustees of The University of Arkansas
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Patent number: 7919012
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: April 5, 2011
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Publication number: 20100308272
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Application
    Filed: March 10, 2010
    Publication date: December 9, 2010
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Patent number: 7767260
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: August 3, 2010
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Publication number: 20100171077
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Application
    Filed: March 11, 2010
    Publication date: July 8, 2010
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Publication number: 20100163800
    Abstract: The present invention provides new compositions containing nearly monodisperse colloidal core/shell semiconductor nanocrystals with high photoluminescence quantum yields (PL QY), as well as other complex structured semiconductor nanocrystals. This invention also provides new synthetic methods for preparing these nanocrystals, and new devices comprising these compositions. In addition to core/shell semiconductor nanocrystals, this patent application also provides complex semiconductor nanostructures, quantum shells, quantum wells, doped nanocrystals, and other multiple-shelled semiconductor nanocrystals.
    Type: Application
    Filed: March 10, 2010
    Publication date: July 1, 2010
    Inventors: Xiaogang Peng, Jianqing Li, David Battaglia, Y. Andrew Wang, Yunjun Wang
  • Patent number: 7273904
    Abstract: Dendron ligands or other branched ligands with cross-linkable groups were coordinated to colloidal inorganic nanoparticles, including nanocrystals, and substantially globally cross-linked through different strategies, such as ring-closing metathesis (RCM), dendrimer-bridging methods, and the like. This global cross-linking reaction sealed each nanocrystal within a dendron box to yield box-nanocrystals which showed dramatically enhanced stability against chemical, photochemical and thermal treatments in comparison to the non-cross-linked dendron-nanocrystals. Empty dendron boxes possessing a very narrow size distribution were formed by the dissolution of the inorganic nanocrystals contained therein upon acid or other etching treatments.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: September 25, 2007
    Assignee: The Board of Trustees of the University of Arkansas
    Inventors: Xiaogang Peng, Haiyan Chen, Wenzhou Guo, Y. Andrew Wang