V2EX photoconductivity

Photoconductivity

定义 (Definition)

光电导性:指某些材料在光照下电导率增加(电阻降低)的现象。其原因通常是光子激发产生更多可移动的电荷载流子(如电子与空穴)。该词在物理、材料科学与半导体器件(如光敏电阻、光探测器)中常见。

发音 (Pronunciation)

/fotokndktvti/

例句 (Examples)

Photoconductivity increases when the sample is exposed to bright light.
当样品暴露在强光下时,光电导性会增强。

The photoconductivity of semiconductors depends on wavelength, temperature, and the density of defects in the crystal.
半导体的光电导性取决于波长、温度以及晶体中缺陷的密度。

词源 (Etymology)

photoconductivity 由 **photo-**(“光”,源自希腊语 *phōs/phōt-*)+ conductivity(“导电性/传导性”,来自拉丁语 conducere “引导、传送”并在现代科学语境中发展为“导电能力”)组合而成,字面意思就是“由光引起的导电性(变化)”。

相关词 (Related Words)

文学与著作示例 (Literary Works)

  • Principles of Semiconductor Devices(Sima Dimitrijev)
  • Physics of Semiconductor Devices(S. M. Sze, Kwok K. Ng)
  • Introduction to Solid State Physics(Charles Kittel)
  • Semiconductor Optoelectronic Devices(Pallab Bhattacharya)
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