surface work function

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• Work function — In solid state physics, the work function is the minimum energy (usually measured in electron volts) needed to remove an electron from a solid to a point immediately outside the solid surface (or energy needed to move an electron from the Fermi… …   Wikipedia

• electronic work function — ▪ physics       energy (or work) required to withdraw an electron completely from a metal surface. This energy is a measure of how tightly a particular metal holds its electrons that is, of how much lower the electron s energy is when present… …   Universalium

• work function — 1. Physics. the least energy necessary to free an electron from a metal surface. 2. Thermodynam. See Helmholtz function. * * * …   Universalium

• work function — noun The minimum energy needed to remove an electron from the surface of a material …   Wiktionary

• work function — /ˈwɜk fʌŋkʃən/ (say werk fungkshuhn) noun the energy required to free an electron from the surface of a metal …  

• work function — noun : the energy that is needed for a particle to come from the interior of a medium and break through the surface used especially of the photoelectric and thermionic emission of electrons from metals …   Useful english dictionary

• surface analysis — ▪ chemistry Introduction       in analytical chemistry (chemistry), the study of that part of a solid that is in contact with a gas or a vacuum. When two phases of matter are in contact, they form an interface. The term surface is usually… …   Universalium

• work — {{Roman}}I.{{/Roman}} noun 1 effort/product of effort ADJECTIVE ▪ hard ▪ It s hard work trying to get him to do a few things for himself. ▪ It doesn t require skill it s a matter of sheer hard work. ▪ arduous, back breakin …   Collocations dictionary

• function — function, functionalism Although the use of the concepts of function and functionalism is usually associated with the work of Talcott Parsons in modern sociology, there is a long tradition of functional explanation in studying societies, and a… …   Dictionary of sociology

• surface — [sʉr′fis] n. [Fr < sur (see SUR 1) + face,FACE, based on L superficies] 1. a) the outer face, or exterior, of an object b) any of the faces of a solid c) the area or extent of such a face …   English World dictionary

• surface coating — ▪ chemistry Introduction       any mixture of film forming materials plus pigments, solvents, and other additives, which, when applied to a surface and cured or dried, yields a thin film that is functional and often decorative. Surface coatings… …   Universalium