Doping: Connectivity of Semiconductors

Reverse-biased p-n junction bands

Diagram of a p-n junction under reverse bias, showing conduction and valence bands, the depletion zone, the potential barrier, the resultant electric field, ${\displaystyle {\mathcal {E}}_{0}+{\mathcal {E}}_{ext}}$, and the types of semiconductor. The p-n junction forms between juxtaposed p- and n-type semiconductors. The free electrons from the n-type semiconductor combine with the holes in the p-type semiconductor near the junction. There is a small potential difference across the junction. The area near the junction is called the depletion band because there are few positive holes and few free electrons in this region.

Source

Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

"Reverse-Biased_pn_Junction_Bands.svg."

https://commons.wikimedia.org/wiki/File:Reverse-Biased_pn_Junction_Bands.svg Wikimedia Public domain.

Doping: Connectivity of Semiconductors

Reverse-biased p-n junction bands

Source

Related Terms