Patents by Inventor Guang Xi Ni

Guang Xi Ni 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).

  • Publication number: 20150075602
    Abstract: A photovoltaic cell (10) is disclosed that includes an active layer (20) sandwiched by top and bottom graphene-ferroelectric electrodes (30T, 30B) each having a graphene layer (32) and a polarized ferroelectric layer (34). The polarized ferroelectric layer defines an internal electric field (EI). Light (50) irradiates the active layer through the top graphene-ferroelectric electrode, causing the generation in the active layer of electrons (e) and holes (h) as charge carriers. The internal electric field causes the electrons and holes to move towards opposite electrodes, giving rise to a photocurrent (ipc), while also mitigating undesirable charge-carrier recombination.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 19, 2015
    Inventors: Barbaros Ozyilmaz, Surajit Saha, Chee Tat Toh, Orhan Kahya, Guang Xi Ni