Research Projects

  • Direct Conversion from Ionizing Radiation
    As demand increases for mobile electronics there is a need to innovate on the power sources. A promising power source is betavoltaics, which generates electricity from the conversion of ionizing radiation from an embedded beta source. Applications include national security benefits for soldiers in the field for extended periods of time to power vital wireless Continue Reading...
  • Sodium Thermo-Electro-Chemical Converter
    The Sodium Thermo-Electro-Chemical Converter (Na-TECC) is an electrochemical, solid state converter that has high efficiency, high power density, and is easily scalable. The Na-TECC extracts power from the isothermal expansion of high pressure sodium through an ion conducting membrane [1]. The β”-alumina solid electrolyte (BASE) allows the passage of sodium cations while impeding the transfer Continue Reading...
  • Thermal Conductivity in Amorphous Materials
    Amorphous materials are used in thermoelectrics, photovoltaics, integrated circuits and LEDs. Understanding their thermal properties in detail can help to improve the performance of these devices. Thermal conductivity is one particular property that is critical to the performance. The thermal conductivity of amorphous materials is widely different from crystalline materials.  Furthermore, the present theories that Continue Reading...
  • Radial Thermoelectrics
    Thermoelectric generators are solid-state devices that generate power when subjected to a temperature gradient. Conventional TEGs consist of p- and n-type semiconductor legs sandwiched between two ceramic plates. Upon applying a temperature gradient across the device, majority carriers diffuse through the semiconductor legs, thereby generating a voltage. TEGs have numerous applications ranging from powering wearable Continue Reading...
  • Polymer Thermoelectrics
    Thermoelectrics have the potential to convert heat directly into electricity and could be ideal for distributed power generation.  However, due to cost, manufacturability, abundance, and material performance, the full potential of thermoelectrics has yet to be realized.  While great advances attributed primarily to a reduction in thermal conductivity have been made in the last decade, Continue Reading...
  • Frequency Domain Thermal Reflectance
    Although TE generation has been a mainstay of space missions since the 1950’s, the high cost of traditional semi-conducting TEs has severely limited their presence in the private sector.  The cost of a state-of-the-art TE system exceeds $10/W and must be reduced nearly two orders of magnitude to be commercially viable.1  Polymer thermoelectrics are a Continue Reading...

Collaborators

  • Boudouris Group
    We are collaborating with Prof. Bryan Boudouris’ POWER Lab on developing thermo-electro-chromic devices....
  • Graham Group
    We are collaborating with the Graham Group to create the Heat Lab...
  • Cola Group
    We are collaborating with the Cola Group to create the Heat Lab....
  • Ceramatec
    We are working with the Ceramatec to develop a new type of sodium ion expansion engine...
  • Lee Group
    We are working with the Lee Group to develop a new type of sodium ion expansion engine....
  • Sulchek Group
    We are collaborating with the Sulchek Group to aid in the development of a liquid piston waste heat recovery device....
  • Federov Group
    We are working with the Fedorov Group to develop a new type of sodium ion expansion engine....
  • Oak Ridge National Labs
    We are working with the Center for Nanophase Materials Sciences at ORNL to synthesize novel conjugated polymers....
  • Chu Group
    We are working with the Chu Group at Stanford to develop betavoltaic devices...
  • Majumdar Group
    We are working with the Majumdar Group at Stanford to develop betavoltaic devices....
  • Hesketh Group
    We are working with the Hesketh Group to develop low power gas sensors....
  • Marder Group
    We are working with the Marder Group on developing organic thermoelectric materials....
  • Reynolds Group
    We are working with the Reynolds Group to develop the next generation of organic thermoelectric materials....
  • Ase Group
    We are working hand in hand with the Ase group in changing the world....