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Depletion zone and current in forward-biased PN junction

  1. Jan 30, 2016 #1

    goodphy

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    Hello.

    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

    goodphy

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    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?
     
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