Patents Represented by Attorney Karen K. Chan
  • Patent number: 8338555
    Abstract: Photopolymers are provided with composites and electronic devices including such photopolymers. Specifically, organic thin film transistors comprising a semiconductor layer, a polymeric layer in contact with the semiconductor layer, a gate electrode, a source electrode and a drain electrode are disclosed, wherein the semiconductor layer comprises an organic semiconductor compound, and the polymeric layer comprises a photocrosslinked product of a photopolymer.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: December 25, 2012
    Assignee: Polyera Corporation
    Inventors: He Yan, Antonio Facchetti, Tobin J. Marks
  • 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: 8329855
    Abstract: Disclosed are new semiconductor materials prepared from thienocoronene-imide-based small molecule and/or polymeric compounds. Such compounds can exhibit high carrier mobility and/or good current modulation characteristics. In addition, the compounds of the present teachings can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: December 11, 2012
    Assignees: Polyera Corporation, BASF SE
    Inventors: Hakan Usta, Zhihua Chen, Antonio Facchetti
  • Patent number: 8274075
    Abstract: Solution-processable dielectric materials are provided, along with precursor compositions and processes for preparing the same. Composites and electronic devices including the dielectric materials also are provided.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 25, 2012
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Antonio Facchetti, Zhiming Wang, Hyuk-Jin Choi, Nae-Jeong Suh, legal representative
  • Patent number: 8093588
    Abstract: Dielectric compositions comprising siloxane and polymeric components, as can be used in a range of transistor and related device configurations.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: January 10, 2012
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Antonio Facchetti, Myung-Han Yoon, He Yan