electron work function, \(\mathit{\Phi}\)

https://doi.org/10.1351/goldbook.E02015
The minimum work needed to extract electrons from the @[email protected] of a metal M across a surface carrying no net charge. It is equal to the sum of the potential energy and the kinetic @[email protected] taken with the reverse sign: \[\mathit{\Phi} ^{M} = -(V_{\text{e}}+ɛ_{\text{e}}^{F})\] where \(V_{\text{e}}\) is the potential energy for electrons in metals and \(\varepsilon_{\text{e}}^{\text{F}}\) is the @[email protected] of electrons at the @[email protected]
Source:
PAC, 1986, 58, 437. (Interphases in systems of conducting phases (Recommendations 1985)) on page 441 [Terms] [Paper]