V2EX contact potential

Contact Potential

Definition / 释义

contact potential接触电势(差)。指两种不同材料(常见为金属或半导体)接触时,由于功函数/电子能级不同而在界面处产生的电势差。常用于物理、材料学与电子学语境。
(在商业语境中也偶见指“可联络的潜在对象/潜在联系人”,但较不常作为固定术语使用。)

Pronunciation / 发音

/kn.tkt ptn.l/

Examples / 例句

The contact potential depends on the materials you choose.
接触电势取决于你选择的材料。

In semiconductor devices, engineers must account for contact potential to predict how charge carriers move across an interface.
在半导体器件中,工程师必须考虑接触电势,才能预测电荷载流子如何跨越界面运动。

Etymology / 词源

contact 来自拉丁语 contactus(“接触”),由 *con-*(“一起”)+ tangere(“触碰”)演变而来;potential 来自拉丁语 potentialis(“有能力的/潜在的”),与 potens(“有力的”)相关。组合起来表示“由接触所产生的电势(差)”。

Related Words / 相关词

Literary Works / 文学与作品

  • Introduction to Solid State Physics(Charles Kittel)在讲解金属/半导体能带与功函数时涉及接触电势差概念。
  • Physics of Semiconductor Devices(S. M. Sze, Kwok K. Ng)讨论金属-半导体接触、势垒与内建电势时常与该概念相关联。
  • The Feynman Lectures on Physics(Richard P. Feynman 等)在电学与材料相关章节中可见与“接触电势差/接触电压”相关的讨论。
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