I've been doing some practice semicon. problems and there are a few remaining ones I've been having issues solving. I'll do one at a time Question: What happens when an n-type and p-type material are merged to form a p-n junction? Provide an explanation as to the amount of net current flow in a p-n junction under equilibrium. I know that under reverse-bias, there is minimal current flow to cross the p-n junction but what about under equilibrium? Also I know generally what happens in a p-n junction but cant specifically put to words what is occuring on a more exact level... any suggestions ?