Field electron emission, also known as field emission (FE) and electron field emission, is emission of electrons induced by an electrostatic field. The...
125 KB (16,087 words) - 09:14, 8 February 2024
A field-emission display (FED) is a flat panel display technology that uses large-area field electron emission sources to provide electrons that strike...
20 KB (2,560 words) - 22:20, 3 November 2024
A field emission gun (FEG) is a type of electron gun in which a sharply pointed Müller-type[clarification needed] emitter: 87–128 is held at several kilovolts...
3 KB (250 words) - 20:28, 17 March 2024
literature, are now known to be ions or electrons. Thermal electron emission specifically refers to emission of electrons and occurs when thermal energy overcomes...
32 KB (3,564 words) - 16:29, 25 October 2024
as electron microscopes and particle accelerators. Electron guns may be classified by the type of electric field generation (DC or RF), by emission mechanism...
6 KB (705 words) - 13:28, 31 August 2024
the surface). Field-emission microscopy (FEM) was invented by Erwin Müller in 1936. In FEM, the phenomenon of field electron emission was used to obtain...
6 KB (741 words) - 23:18, 12 August 2023
temperature Schottky emission, due to the: Schottky effect or field enhanced thermionic emission Field electron emission, emission of electrons induced by an...
2 KB (191 words) - 04:17, 13 March 2024
erases. EEPROM can be programmed and erased electrically using field electron emission (more commonly known in the industry as "Fowler–Nordheim tunneling")...
29 KB (2,951 words) - 14:37, 4 October 2024
Electric current (redirect from Electron current)
conductive by injecting free electrons or ions through either field electron emission or thermionic emission. Thermionic emission occurs when the thermal energy...
36 KB (4,338 words) - 08:06, 2 October 2024
Hot cathode (redirect from Emissive layer)
significantly more electrons from the same surface area. Cold cathodes rely on field electron emission or secondary electron emission from positive ion...
21 KB (2,569 words) - 02:12, 1 March 2024
the thermoelectric effect; thermal electron emission and field electron emission from bulk metals. The free electron model solved many of the inconsistencies...
24 KB (3,412 words) - 22:51, 3 November 2024
Stimulated emission is the process by which an incoming photon of a specific frequency can interact with an excited atomic electron (or other excited molecular...
21 KB (3,250 words) - 00:53, 4 November 2024
mechanics to solid-state problems, such as thermionic emission, work function of metals, field electron emission, rectification in metal-semiconductor contacts...
10 KB (968 words) - 11:23, 22 March 2024
Schottky effect (redirect from Field enhanced thermionic emission)
effect or field enhanced thermionic emission is a phenomenon in condensed matter physics named after Walter H. Schottky. In electron emission devices,...
5 KB (586 words) - 10:08, 20 July 2024
field emission gun. The gun is connected to a high voltage source (typically ~100–300 kV) and emits electrons either by thermionic or field electron emission...
118 KB (15,058 words) - 13:31, 17 October 2024
heated by a filament. They may emit electrons by field electron emission, and in gas-filled tubes by secondary emission. Some examples are electrodes in...
24 KB (2,878 words) - 12:11, 20 September 2024
electron emission from the sample induced by photon absorption (photoemission), by high temperature (thermionic emission), due to an electric field (field...
31 KB (3,657 words) - 12:42, 24 May 2024
begin to emit electrons either through heating (thermionic emission) or in an electric field that is sufficient to cause field electron emission. Once initiated...
3 KB (328 words) - 09:52, 3 January 2024
electron emission can be heat (thermionic emission), light (photoelectron emission), ions, or neutral particles, but normally excludes field emission...
20 KB (2,699 words) - 21:36, 26 September 2024
need to use field electron emission sources, such as heated W/ZrO2 for lower energy spread and enhanced brightness. Thermal field emission sources are...
38 KB (4,736 words) - 09:02, 10 July 2024
limited cases. In field electron emission, electrons tunnel through a potential barrier, rather than escaping over it as in thermionic emission or photoemission...
69 KB (9,669 words) - 17:00, 9 June 2024
cathode may be considered "cold" if it emits more electrons than can be supplied by thermionic emission alone. It is used in gas-discharge lamps, such as...
12 KB (1,507 words) - 13:03, 14 November 2023
also used for sintering of carbon nanotubes for development of field electron emission electrodes. Functioning of SPS systems is schematically explained...
9 KB (994 words) - 17:06, 26 November 2023
Vol. 9033. SPIE. p. S-1. doi:10.1117/12.2043187. Field emission display Field electron emission Vacuum tubes using field electron emitters Cold cathode...
6 KB (689 words) - 07:37, 22 August 2024
physicist who played a major early role in developing the theory of electron and ion emission phenomena, invented the screen-grid vacuum tube in 1915 while...
15 KB (1,573 words) - 07:38, 27 October 2024
of field electron emission as a separate physical effect. (He called it "auto-electronic emission", and was interested in it as a possible electron source...
11 KB (1,125 words) - 04:14, 17 June 2024
Tunnel injection is a field electron emission effect; specifically a quantum process called Fowler–Nordheim tunneling, whereby charge carriers are injected...
1 KB (147 words) - 17:30, 17 October 2024
amplification of the secondary electron signal.[citation needed] Low-voltage SEM is typically conducted in an instrument with a field emission guns (FEG) which is...
67 KB (8,141 words) - 21:07, 20 October 2024
release secondary electrons at the impact. (For very large applied voltages also field electron emission can occur.) Without field emission, we can write...
22 KB (2,788 words) - 12:37, 18 October 2024
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to electrons making...
23 KB (2,638 words) - 14:00, 23 September 2024