Patents by Inventor Ahmed A. Maarouf

Ahmed A. Maarouf 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).

  • Carbon Nanotube-Graphene Hybrid Transparent Conductor and Field Effect Transistor
    Publication number: 20130130037
    Abstract: A nanotube-graphene hybrid film and method for forming a cleaned nanotube-graphene hybrid film. The method includes depositing nanotube film over a substrate to produce a layer of nanotube film, removing impurities from a surface of the layer of nanotube film not contacting the substrate to produce a cleaned layer of nanotube film, depositing a layer of graphene over the cleaned layer of nanotube film to produce a nanotube-graphene hybrid film, and removing impurities from a surface of the nanotube-graphene hybrid film to produce a cleaned nanotube-graphene hybrid film, wherein the hybrid film has improved electrical performance. Another method includes depositing nanotube film over a metal foil to produce a layer of nanotube film, placing the metal foil with as-deposited nanotube film in a chemical vapor deposition furnace to grow graphene on the nanotube film to form a nanotube-graphene hybrid film, and transferring the nanotube-graphene hybrid film over a substrate.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ageeth A. Bol, Bhupesh Chandra, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, George S. Tulevski
  • DOPED, PASSIVATED GRAPHENE NANOMESH, METHOD OF MAKING THE DOPED, PASSIVATED GRAPHENE NANOMESH, AND SEMICONDUCTOR DEVICE INCLUDING THE DOPED, PASSIVATED GRAPHENE NANOMESH
    Publication number: 20130028823
    Abstract: A method of making a semiconductor device, includes providing a graphene sheet, creating a plurality of nanoholes in the graphene sheet to form a graphene nanomesh, the graphene nanomesh including a plurality of carbon atoms which are formed adjacent to the plurality of nanoholes, passivating a dangling bond on the plurality of carbon atoms by bonding a passivating element to the plurality of carbon atoms, and doping the passivated graphene nanomesh by bonding a dopant to the passivating element.
    Type: Application
    Filed: July 31, 2011
    Publication date: January 31, 2013
    Applicants: Egypt Nanotechnology Center, International Business Machines Corporation
    Inventors: Ahmed Abou-Kandil, Ahmed Maarouf, Glenn J. Martyna, Hisham Mohamed, Dennis M. Newns
  • Graphene Solar Cell
    Publication number: 20120000516
    Abstract: A solar cell includes a semiconductor portion, a graphene layer disposed on a first surface of the semiconductor portion, and a first conductive layer patterned on the graphene layer, the first conductive layer including at least one bus bar portion and a plurality of fingers extending from the at least one bus bar portion.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 5, 2012
    Applicants: EGYPT NANOTECHNOLOGY CENTER, INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ageeth A. Bol, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Dennis M. Newns, Razvan A. Nistor, George S. Tulevski
  • Graphene Solar Cell And Waveguide
    Publication number: 20120000521
    Abstract: A solar cell includes a semiconductor portion, a graphene layer disposed on a first surface of the semiconductor portion, and a first conductive layer patterned on the graphene layer, the first conductive layer including at least one bus bar portion, a plurality of fingers extending from the at least one bus bar portion, and a refractive layer disposed on the first conductive layer.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 5, 2012
    Applicants: EGYPT NANOTECHNOLOGY CENTER, INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ageeth A. Bol, Amal Kasry, Marcelo Kuroda, Ahmed Maarouf, Glenn J. Martyna, Dennis M. Newns, Razvan A. Nistor, George S. Tulevski