Title: flat band potential
Long Title: IUPAC Gold Book - flat band potential
DOI: 10.1351/goldbook.F02421
Status: current

Definition
If effects of surface states are negligible, \(\Delta \varphi ^{\rm{sc}}\), the potential drop associated with the space charge in the semiconductor, vanishes as the charge on the semiconductor becomes zero. The potential of the semiconductor corresponding to this condition is the flat band potential, which plays the same role as the potential of zero charge for metals.

Related Terms
- semiconductor: https://goldbook.iupac.org//terms/view/S05591
- surface states: https://goldbook.iupac.org//terms/view/S06190

Source
- PAC, 1986, 58, 437. 'Interphases in systems of conducting phases (Recommendations 1985)' on page 444 (https://doi.org/10.1351/pac198658030437)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/F02421/html
- json: https://goldbook.iupac.org/terms/view/F02421/json
- xml: https://goldbook.iupac.org/terms/view/F02421/xml

Citation: Citation: 'flat band potential' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.F02421
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Accessed: 2026-07-24T02:43:07+00:00