Skip to main content

Shining Light on Solar Cells - Chapter 3.1: PN Junction Diode (Forward & Reverse Bias, IV Curve)

In this video, we will learn about the famous forward and reverse bias using a very intuitive method. Finally, we will show how the current-voltage (IV) curve of a pn junction looks like.

Forward bias and reverse bias? Sounds familiar? Confusing? Well, fret not. This video will get you covered. Remember Gandalf the Grey's infamous line "You shall not pass!". Well, that is exactly what PN Junctions do. They only allow current to pass in one direction.

Further reference materials that I highly recommend:

ECE Purdue Primer on Semiconductor Fundamentals

A. Kitai, in Principles of Solar Cells, LEDs and Diodes: The Role of the PN Junction, John Wiley & Sons, West Sussex, UK 2011

Other parts in this series:

I'm an R&D Mechanical Engineer from Keysight Technologies. I design mechanical components that facilitate over-the-air testing equipment. I also have a strong background in photovoltaics. I love creating STEM-related content to inspire and encourage people to pursue STEM, as well as to provide career advice to fresh grads who are looking for their first job
DesignSpark Electrical Logolinkedin