PN Junction Band Diagram

  / edmundsj  
If you want to see more of these videos, or would like to say thanks for this one, the best way you can do that is by becoming a patron - see the link above :). And a huge thank you to all my existing patrons - you make these videos possible.

In this video, I go over the band diagram of the P/N junction, which will allow us to find the electric field and the P/N junction width through what is called the "built-in potential" Vbi. This is an important quantity in circuit design as well and is where the "turn-on voltage" of a diode comes from.

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.