Demonstration of Low Work Function Perovskite SrVO ₃ Using Thermionic Electron Emission

The Relation between Temperature and Work Function in Thermionic Emission.

Vibrationally promoted electron emission from low work-function metal surfaces.

We observe electron emission when vibrationally excited NO molecules with vibrational state v, in the range of 9 < or = v < or =18, are scattered from a Cs-dosed Au surface. The quantum efficiency increases strongly with v, increasing up to 10(-2) electrons per NO (v) collision, a value several orders of magnitude larger than that observed in experiments with similar molecules in the ground vib...

Low Emittance Thermionic Electron Guns*

Thermionic emission properties and the work function determination of arrays of conical carbon nanotubes

a Department of Physics and Astronomy, University of Louisville, Louisville, KY, United States b Department of Chemical Engineering, University of Louisville, Louisville, KY, United States c Electro-Optics Research Institute & Nanotechnology Center, University of Louisville, Louisville, KY, United States d Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY, Unit...

Thermionic electron emission microscopy of metal-oxide multilayers on tungsten

Introduction Thermionic cathodes are used in many industrial vacuum electronic applications. Vacuum tubes for high-frequency or high-power applications are one example (e.g., see [1]). The emission properties of thermionic electron sources in vacuum devices are often Bimproved[ by the addition of oxide coatings on the metal cathode surface [2, 3]. The explanation of the improvement is usually b...