Definition For Diffusion Length
The action of diffusing.
Definition for diffusion length. For the resolution of every electrical measurement the diffusion length is the limitation. Diffusion length is the average length a carrier moves between generation and recombination. It is interesting to try to interpret the physical meaning of the diffusion length. Semiconductor materials that are heavily doped have greater recombination rates and consequently have shorter diffusion lengths.
Diffusion factor d is not a constant but depents on the carrier mobility. It is also a helpful measure to. Diffusion definition is the state of being spread out or transmitted especially by contact. The physical meaning of the diffusion length can be seen by calculation of the mean square distance that a neutron travels in the one direction from the plane source to its absorption point.
Bokstein 2005 the length 2 dt is called the diffusion length and provides a measure of how far the concentration has propagated in the x direction by diffusion in time t bird 1976. How to use diffusion in a sentence. As a quick approximation of the error function the first 2 terms of the taylor series can be used. Diffusion length depends on the lifetime and mobility of the carriers.
Mcgraw hill dictionary of scientific technical terms 6e copyright 2003 by the. The diffusion length is the average distance that the excess carriers can cover before they recombine.