Patents by Inventor Jared Schwede

Jared Schwede 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 For Tuning Work Function Using Surface Photo Voltage and Producing Ultra-Low-Work-Function Surfaces, and Devices Operational Therewith
    Publication number: 20220093357
    Abstract: The embodiments provide a thermionic emission device and a method for tuning a work function in a thermionic emission device is provided. The method includes illuminating an N type semiconductor material of a first member of a thermionic emission device, wherein a work function of the N type semiconductor material is lowered by the illuminating. The method includes collecting, on one of the first member or a second member of the thermionic emission device, electrons emitted from one of the first member or the second member.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Inventors: Daniel Riley, Kunal Sahasrabuddhe, Igor Bargatin, Jared Schwede, Zhixun Shen, Nicholas A. Melosh
  • Photon enhanced thermionic emission
    Patent number: 8853531
    Abstract: Photon Enhanced Thermionic Emission (PETE) is exploited to provide improved efficiency for radiant energy conversion. A hot (greater than 200° C.) semiconductor cathode is illuminated such that it emits electrons. Because the cathode is hot, significantly more electrons are emitted than would be emitted from a room temperature (or colder) cathode under the same illumination conditions. As a result of this increased electron emission, the energy conversion efficiency can be significantly increased relative to a conventional photovoltaic device. In PETE, the cathode electrons can be (and typically are) thermalized with respect to the cathode. As a result, PETE does not rely on emission of non-thermalized electrons, and is significantly easier to implement than hot-carrier emission approaches.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: October 7, 2014
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Jared Schwede, Nicholas Melosh, Zhixun Shen
  • Photon enhanced thermionic emission
    Publication number: 20100139771
    Abstract: Photon Enhanced Thermionic Emission (PETE) is exploited to provide improved efficiency for radiant energy conversion. A hot (greater than 200° C.) semiconductor cathode is illuminated such that it emits electrons. Because the cathode is hot, significantly more electrons are emitted than would be emitted from a room temperature (or colder) cathode under the same illumination conditions. As a result of this increased electron emission, the energy conversion efficiency can be significantly increased relative to a conventional photovoltaic device. In PETE, the cathode electrons can be (and typically are) thermalized with respect to the cathode. As a result, PETE does not rely on emission of non-thermalized electrons, and is significantly easier to implement than hot-carrier emission approaches.
    Type: Application
    Filed: October 16, 2009
    Publication date: June 10, 2010
    Inventors: Jared Schwede, Nicholas Melosh, Zhixun Shen