Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Depletion zone and current in forward-biased PN junction

  1. Jan 30, 2016 #1

    I've learned that in PN junction, forward-biasing pushes holes in P-type and electrons in N-type forward junctions so depletion width is reduced. Is it due to that in N-type (P-type), pushed electrons (holes) are recombined with holes (electrons) in depletion zone?

    And what is true identity of current in forward-bias? In this biasing, I guess there are two kinds of current; charge carrier diffusion due to carrier concentration imbalance at the junction (diffusion current) and drifted carrier pushed by external field in biasing (drift current). Is forward-biasing current consisted of both types of current or one of them?
  2. jcsd
  3. Jan 31, 2016 #2
    Do not post the same question twice!
  4. Jan 31, 2016 #3
    I'm sorry but I didn't know how to remove my uploaded post. So I had no choice but upload the question to other more relevant forum.

    Could you tell me how to delete post?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook