Patents Assigned to The United States of America as reprresented by the United States Department of Energy
  • Bulk single crystal ternary substrates for a thermophotovoltaic energy conversion system
    Patent number: 5769964
    Abstract: A thermophotovoltaic energy conversion device and a method for making the device. The device includes a substrate formed from a bulk single crystal material having a bandgap (E.sub.g) of 0.4 eV<E.sub.g <0.7 eV and an emitter fabricated on the substrate formed from one of a p-type or an n-type material. Another thermophotovoltaic energy conversion device includes a host substrate formed from a bulk single crystal material and lattice-matched ternary or quaternary III-V semiconductor active layers.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: June 23, 1998
    Assignee: The United States of America as reprresented by the United States Department of Energy
    Inventors: Greg W. Charache, Paul F. Baldasaro, Greg J. Nichols