Coding With Fun
Home Docker Django Node.js Articles Python pip guide FAQ Policy

Why is an electron acceptor called an electron donor semiconductor?


Asked by Banks Moreno on Dec 03, 2021 Electron



For both types of donor or acceptor atoms, increasing dopant density increases conductivity. An extrinsic semiconductor which has been doped with electron donor atoms is called an n-type semiconductor, because the majority of charge carriers in the crystal are negative electrons.
Indeed,
In physics of semiconductors, an electron donor is a dopant atom (impurity) that, when added to a semiconductor, can form a n-type semiconductor. An electron acceptor is a dopant atom (impurity) that, when added to a semiconductor, can form a p-type semiconductor.
Furthermore, About semiconductor physics, a donor is a dopant atom that, when added to a semiconductor, can form a n-type region. Phosphorus atom acting as a donor in the simplified 2D silicon lattice.
Likewise,
The process of adding controlled impurities to a semiconductor is known as semiconductor doping. This process changes an intrinsic semiconductor to an extrinsic semiconductor. For both types of donor or acceptor atoms, increasing dopant density increases conductivity.
Accordingly,
As mentioned, a semiconductor is a material with a filled valence band, an unfilled conduction band, and a relatively small energy gap between the bands. Excess electrons or holes can be introduced into the material by the substitution into the crystal lattice of an impurity atom, which is an atom of a slightly different valence number.