Patents by Inventor Eric K. Yu

Eric K. Yu 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).

  • Photoactive devices including porphyrinoids with coordinating additives
    Patent number: 9029837
    Abstract: Coordinating additives are included in porphyrinoid-based materials to promote intermolecular organization and improve one or more photoelectric characteristics of the materials. The coordinating additives are selected from fullerene compounds and organic compounds having free electron pairs. Combinations of different coordinating additives can be used to tailor the characteristic properties of such porphyrinoid-based materials, including porphyrin oligomers. Bidentate ligands are one type of coordinating additive that can form coordination bonds with a central metal ion of two different porphyrinoid compounds to promote porphyrinoid alignment and/or pi-stacking. The coordinating additives can shift the absorption spectrum of a photoactive material toward higher wavelengths, increase the external quantum efficiency of the material, or both.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 12, 2015
    Assignee: The Regents of The University of Michigan
    Inventors: Stephen R. Forrest, Jeramy Zimmerman, Eric K. Yu, Mark E. Thompson, Cong Trinh, Matthew Whited, Vlacheslav Diev
  • PHOTOACTIVE DEVICES INCLUDING PORPHYRINOIDS WITH COORDINATING ADDITIVES
    Publication number: 20150048314
    Abstract: Coordinating additives are included in porphyrinoid-based materials to promote intermolecular organization and improve one or more photoelectric characteristics of the materials. The coordinating additives are selected from fullerene compounds and organic compounds having free electron pairs. Combinations of different coordinating additives can be used to tailor the characteristic properties of such porphyrinoid-based materials, including porphyrin oligomers. Bidentate ligands are one type of coordinating additive that can form coordination bonds with a central metal ion of two different porphyrinoid compounds to promote porphyrinoid alignment and/or pi-stacking. The coordinating additives can shift the absorption spectrum of a photoactive material toward higher wavelengths, increase the external quantum efficiency of the material, or both.
    Type: Application
    Filed: October 12, 2011
    Publication date: February 19, 2015
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Stephen R. Forrest, Jeramy Zimmerman, Eric K. Yu, Mark E. Thompson, Cong Trinh, Matthew Whited, Viacheslav Diev