Patents by Inventor Dragomir Davidovic

Dragomir Davidovic 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).

  • Method to modify the conductivity of graphene
    Patent number: 8497499
    Abstract: A gated electrical device includes a non-conductive substrate and a graphene structure disposed on the non-conductive substrate. A metal gate is disposed directly on a portion of the graphene structure. The metal gate includes a first metal that has a high contact resistance with graphene. Two electrical contacts are each placed on the graphene structure so that the metal gate is disposed between the two electrical contacts. In a method of making a gated electrical device, a graphene structure is placed onto a non-conductive substrate. A metal gate is deposited directly on a portion of the graphene structure. Two electrical contacts are deposited on the graphene structure so that the metal gate is disposed between the two electrical contacts.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: July 30, 2013
    Assignee: Georgia Tech Research Corporation
    Inventors: Dragomir Davidovic, Walter A. de Heer, Christopher E. Malec
  • Method to Modify the Conductivity of Graphene
    Publication number: 20110108806
    Abstract: A gated electrical device includes a non-conductive substrate and a graphene structure disposed on the non-conductive substrate. A metal gate is disposed directly on a portion of the graphene structure. The metal gate includes a first metal that has a high contact resistance with graphene. Two electrical contacts are each placed on the graphene structure so that the metal gate is disposed between the two electrical contacts. In a method of making a gated electrical device, a graphene structure is placed onto a non-conductive substrate. A metal gate is deposited directly on a portion of the graphene structure. Two electrical contacts are deposited on the graphene structure so that the metal gate is disposed between the two electrical contacts.
    Type: Application
    Filed: October 12, 2010
    Publication date: May 12, 2011
    Applicant: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Dragomir Davidovic, Walter A. de Heer, Christopher E. Malec