Valence Band

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈveɪləns bænd/

In the band structure, one band that is completely filled with electrons is termed valence band.
The reason is that their valence band is full of electrons, which obstructs current flow.
It is found that in a high electric field electrons can transit from the valence band to the conduction band, which is demonstrated to be Zener tunneling in organic semiconductors.
The highest-energy band containing electrons is called the valence band, and the next higher one is the conduction band.
The upshift of valence band edge and the downshift of conduction band edge under tensile strain are responsible for that.

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