. . . . . . . . . . . . . . . . . . . . . "http://www.iso.org/iso/catalogue_detail?csnumber=31897"^^ . . "\"Work Function\" is the energy difference between an electron at rest at infinity and an electron at a certain energy level. The minimum energy (usually measured in electronvolts) 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 level into vacuum)." . . . . . . . "Work Function"@en . . . . . . "http://en.wikipedia.org/wiki/Work_function"^^ . . . . . . . . . . . . . . . . "\\(\\Phi\\)"^^ . .