V2EX conduction band

Conduction Band

Definition / 定义

Conduction band(导带):固体能带结构中较高能量的一条能带;当电子处于导带时,通常可以在晶体中较自由地移动,从而参与导电。常见于半导体与绝缘体的讨论中(与 valence band 价带band gap 带隙 等概念相关)。

Pronunciation / 发音

/ kndkn bnd /

Examples / 例句

Electrons in the conduction band can move through the material and carry current.
处在导带中的电子可以在材料中移动并传导电流。

When the temperature rises, more electrons gain enough energy to jump from the valence band into the conduction band, increasing conductivity.
当温度升高时,更多电子获得足够能量从价带跃迁到导带,从而提高导电性。

Etymology / 词源

conduction 来自拉丁语 conducere(“带领、引导”),在物理语境中引申为“传导”;band 在物理学里指“带状的能量范围/能带”。合起来 conduction band 字面意思是“负责传导的能带”,即电子进入后更容易形成电流的能量带。

Related Words / 相关词

Literary Works / 文学作品

  • Introduction to Solid State Physics(Charles Kittel)
  • Physics of Semiconductor Devices(S. M. Sze, Kwok K. Ng)
  • Semiconductor Device Fundamentals(Robert F. Pierret)
  • Solid State Electronic Devices(Ben G. Streetman, Sanjay Banerjee)
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