How does a diode work - the PN Junction (with animation) | Intermediate Electronics

To understand the definition of a diode you need to understand the...wait for it...PN Junction! We've gone over what semiconductors are in other videos but we finally start going over what you can use those semiconductor materials for. When semiconductors of different types are put next to each other, interesting things happen that can be used for a lot of different applications. In the most basic junction, the PN junction, a diode is formed. We lay the foundation of why a diode acts like it does when an n-doped material and a p-doped material are put together. It's crazy exciting stuff, because this is why you're able to watch this video on your phone. Seriously. Crazy, right?

For the transcript of this video with the animations embedded, check out the site: https://www.circuitbread.com/tutorial...

Table of Contents:
0:00 Introduction
0:43 The PN Junction
1:03 Formation of the Depletion Region
1:52 Barrier Potential
2:26 Energy Diagram of the PN Junction
3:33 Energy Diagram of the Depletion Region
4:22 Summary

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