Valence & conduction band

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SUMMARY

The discussion clarifies the positioning of holes and electrons within semiconductor bands. Holes are located at the top of the valence band due to the rearrangement of valence band electrons, which occupy the lowest energy states, leaving the highest energy levels vacant. Conversely, electrons in the conduction band also rearrange to occupy the lowest energy states, which explains their presence at the bottom of the conduction band. Claude metaphorically describes holes as "bubbles in a sea of electrons," illustrating their nature in the semiconductor context.

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  • Knowledge of electron behavior in materials
  • Basic concepts of valence and conduction bands
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kidia
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Can anybody explain to me why holes are found at the top of the valence band, whereas electrons are found at the bottom of the conduction band.
 
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Holes are found at the top of the valence band because the valence band electrons will rearrange themselves so that they occupy the lowest energy states, leaving only the highest energy level vacant. Electrons in the conduction band will similarly rearrange themselves so they occupy the lowest energy states.

Claude.
 
holes are like bubbles in sea of electrons
 

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