thermionic emission

Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.

thermionic emission

(Electronics) the emission of electrons from very hot solids or liquids: used for producing electrons in valves, electron microscopes, X-ray tubes, etc

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ThesaurusAntonymsRelated WordsSynonymsLegend:

Switch to new thesaurus

Noun 1. thermionic emission - the emission of electrons from very hot substances

thermal emission

emission - the release of electrons from parent atoms

Translations

emissione termoelettronica

Mentioned in ?

References in periodicals archive ?

Since the relation [W.sub.s] < [W.sub.Me] is satisfied when the metal is in contact with semiconductor, current of thermionic emission from semiconductor surface is greater than from metal surface.

Peculiarities of Charge Transfer in Si[O.sub.2](Ni)/Si Nanosystems

Seidl, "Thermionic emission of alkali ions from zeolites," Journal of Applied Physics, vol.

Thermal Emission of Alkali Metal Ions from [Al.sub.30]-Pillared Montmorillonite Studied by Mass Spectrometric Method

In the literature, most studies consider the thermionic emission as dominant current conduction mechanism and obtain structures' electrical parameters on this basis [15].

Investigation of current-voltage characteristics and current conduction mechanisms in composites of polyvinyl alcohol and bismuth oxide

At an atomic level, the heated filament (cathode) is heated to a high enough temperature such that electrons are "boiled off" the surface through a process called thermionic emission. The negatively charged electrons are collected and guided by a high voltage electric field pointed towards the anode (Charles Sturt University, 2002).

Screening for breast cancer feared a risk factor

When a metal/semiconductor contact with a thin interfacial layer is considered, it is assumed that the forward bias current of the device is due to thermionic emission current, and it may be expressed as [21]

Growth and characterization of CuO nanostructures on Si for the fabrication of CuO/p-Si Schottky diodes