Are you stuck?  Think about these concepts for a minute:

   What does it mean for a semiconductor to be doped with more acceptors than donors?

   Do electrons tend to fill lower energy states or higher energy states?  Why?

   What do the black circles represent?

   What do the open circles represent?

   What do the arrows represent?

   What do we mean by taking a snapshot?

Still wondering?  Click on the button next to the question for the answer.