- It is a bound state of an electron & hole which are attracted to each other by the electrostatic coulomb force.
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| Exciton Energy Levels |
- An Exciton forms when a photon is absorbed by a Semiconductor (Semiconductor is a material that has a small band gap between the VB & CB).
- Exciton exists in insulators, semiconductors & some liquids.
- An Exciton pair is defined as an electron & hole that it leaves behind when it is excited up to the CB.
- An Exciton Bohr Radius is the distance in an electron - hole pair.
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