This minimal energy, called the work function, is characteristic of the emitting material and the state of contamination of its surface. |
In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron ... Measurement · Physical factors that determine... |
Thermal electron emission specifically refers to emission of electrons and occurs when thermal energy overcomes the material's work function. Richardson's law · Photon-enhanced thermionic... |
The work function is the minimum energy required to take a Fermi-level electron out of a solid, per unit charge. $\begin{picture}(15,5.5)(0,-3: An additional ... |
Measurements of the Thermionic Work Function of Pure Tungsten have been made by two methods for the same segment of a uniformly heated filament ... |
The work function (Φ) values extracted from the thermionic emission data range from 4.1 to 4.7 eV. The range of Φ values is attributed to the morphological ... |
That has generally been found that the thermionic currents from solids follow formula AT1/2 e-b/T, where A and b are two constants, over a wide range ... |
In order to determine the thermionic work function of a metal measurements must be made of the current emitted from Page 15 14 a metal at a known temperature. ... |
The photoelectric work function should equal the thermionic work function but should not in general be equal to -2.3 times the slope of the Richardson line. |
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