work function
The term "work function" is used across various fields such as physics, materials science, and electronics, as well as in a social context.
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Definition
C1Physics
(technical, academic)The minimum energy required to remove an electron from the surface of a solid material into a vacuum.
Example
- The work function of gold is higher than that of aluminum.
C1Materials Science
(technical, academic)The energy difference between the Fermi level of a material and the vacuum level, indicating the ease with which electrons can escape the material.
Example
- Materials with a lower work function are often used in electron emitters.
C1Electronics
(technical, academic)The energy needed to extract an electron from a material, relevant for describing electron emission in devices.
Example
- The work function is a critical parameter in designing vacuum tubes.
B2Social
(informal)A social event organized by an employer for their employees.
Example
- The annual holiday work function is always a highlight of the year.
Similar
Terms that have similar or relatively close meanings to "work function":