Band diagram

From Wikipedia, the free encyclopedia

Band diagram of a p⁺n junction. The band bending is a result of the positioning of the Fermi levels in the p⁺ and n sides.

In solid-state physics of semiconductors, a band diagram is a diagram showing the variation in the valence band and conduction band edges vs. some spatial dimension, often denoted x. The Fermi energy is also usually indicated in the diagram. Sometimes the intrinsic Fermi energy, E_i, which the Fermi level in the absence of doping, may be shown also. These diagrams are useful in explaining the operation of many kinds of semiconductor devices.

This condensed matter physics-related article is a stub. You can help Wikipedia by expanding it.