Diffusion Current for Electrons and Holes

  / edmundsj  
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In this video I derive Fick's law for electrons and holes in a semiconductor, and explain how to find the diffusion current that results from a nonuniform distribution of charge carriers. (also, if you're wondering why I only took the first two terms of the Taylor Series, it is just an approximation).

This is part of my series on semiconductor physics (often called Electronics 1 at university). This is based on the book Semiconductor Physics and Devices by Donald Neamen, as well as the EECS 170A/174 courses taught at UC Irvine.

Hope you found this video helpful, please post in the comments below anything I can do to improve future videos, or suggestions you have for future videos.