Carrier Mobility

01 Fundamentals & Device Physics

Notation μ

Definition

A measure of how readily a charge carrier moves through a material in response to an electric field, commonly expressed as drift velocity divided by electric-field strength.

Application

Used to compare semiconductor materials and process quality and to model conductivity, transistor drive current and transport; mobility depends on carrier type, temperature, doping, scattering and material structure.

Related search terms

Charge-carrier mobility

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Related concepts

Evidence and further reading

  • Evidence from nist.govhttps://www.nist.gov/news-events/news/2020/02/how-low-can-you-go-lower-ever
  • Evidence from nist.govhttps://www.nist.gov/publications/carrier-mobility-silicon-sub-bandgap-time-resolved-terahertz-spectroscopy

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