In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface.

Jun 18, 2023 · What is Work Function? A work function is defined as the minimum amount of thermodynamic work (i.e., energy) required to remove an electron from a solid to a point in the vacuum immediately outside the solid surface. The symbol for the work function is Φ (uppercase Phi of the Greek alphabet).

Dec 1, 2024 · The Work Function. The work function Φ, or threshold energy, of a material, is defined as: The minimum energy required to release a photoelectron from the surface of a metal. Consider the electrons in a metal as trapped inside an ‘energy well’ where the energy between the surface and the top of the well is equal to the work function Φ

Dec 20, 2020 · This chapter handles the definition of the work function, the origin of the work function and factors that determine the work function. The work function is discussed based on potential energy difference of electrons between in solids and at vacuum, which results in...

Mar 22, 2023 · We review standard experimental approaches to measure work function and the use of density functional theory (DFT) as a computational tool to predict work function. We then discuss the influence of materials chemistry and structure on work function trends.

The work function is a theory defined as the minimum energy required to remove an electron from a material at 0 K and denoted by Φ [68].

Work function is a property of a material, which is defined as the minimum quantity of energy which is required to remove an electron to infinity from the surface of a given solid.

Mar 22, 2023 · The work function, which is the energy barrier for an electron escaping from the surface of a material, is a fundamental material surface property with many applications spanning energy harvesting, heterogeneous catalysis, vacuum electronics, and solid-state electronics.

The work function corresponds to the minimum amount of energy needed to remove an electron from the metal. In metals, work function and ionization energy are the same. The work function of a surface is strongly affected by the condition of the surface.

The minimum amount of energy required to be provided to an electron to pull it out of the metal from the surface is called the work function of the metal. Wave-particle Duality of Matter. Is there an error in this question or solution? Define the work function of the metal.