About a folks possess asked no longer too prolonged within the past what exactly is occurring within the PN junction. What concretely is occurring? How attain we leverage college students’ outdated knowledge about recent and payment?

I made these videos because I wasn’t contented with the textbook or the on hand belongings. No math; lawful a heuristic blow-by-blow focusing on electrons, physical pressure, and causality. The production price ranges from newbie to terrible. Nonetheless the negate material is what underlies all the pieces from transistors to solar panels to logic gates.

A series of 11 instant videos uses this trudge deck (also on hand in *.PDF).