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?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook