Understanding Doping & Depletion Zone Formation

[Bassalisk]

Can someone explain to me in detail formation of depletion zone and doping. I thought i understood this but it confused me when it came to this depletion zone.


If u dope silicone with a substance with 3 valence electrons this forms a hole right? How does atom then behave? Does it polarize it self or?

THanks

 

[es1]

This is going to be a really long answer. People have literally written textbooks on the subject.

If you want help visualizing what the depletion layer looks like with different doping and applied biases I think this animation is pretty neat. (you can make negative voltages too)
http://cleanroom.byu.edu/pn_animation.phtml

If you just want some basic theory backed up by a little math the wikipedia articles are pretty good and I would recommend starting there.

 

[Bassalisk]

This is going to be a really long answer. People have literally written textbooks on the subject.

If you want help visualizing what the depletion layer looks like with different doping and applied biases I think this animation is pretty neat. (you can make negative voltages too)
http://cleanroom.byu.edu/pn_animation.phtml

If you just want some basic theory backed up by a little math the wikipedia articles are pretty good and I would recommend starting there.

thanks