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单词 conduction band
释义

conduction band

noun Physics
A delocalized band of energy levels in a crystalline solid which is partly filled with electrons. These electrons have great mobility and are responsible for electrical conductivity.The laser light lifts electrons from the valence band into the conduction band, where they travel freely when a voltage is applied to the semiconductor....
  • The electrons in the conduction band of this metal have no restrictions in their movement.
  • In semiconductors there is a band gap - an energy barrier that electrons must overcome to reach the conduction band.
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更新时间:2024/11/12 8:50:08