Question

Why work function is measured from fermi level to veccum level?

Answer 1

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⭐⭐⬅️ Answer ➡️➡️➡️➡️

The energy difference between Fermi energy and vacuum level corresponds to the work function (Φ). The work function corresponds to the minimum amount of energy needed to remove an electron from the metal. ... The work function of a surface is strongly affected by the condition of the surface.

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Answer 2

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1. The valence bands are filled with electrons up to the Fermi energy (EF).
2. The energy difference between Fermi energy and vacuum level corresponds to the work function (Φ).
3. The work function corresponds to the minimum amount of energy needed to remove an electron from the metal.

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