Charge of a hole

  1. Hi all,
    What causes the electrons to jump into holes??

    Last edited: Jan 16, 2007
  2. jcsd
  3. ZapperZ

    ZapperZ 29,767
    Staff Emeritus
    Science Advisor
    Gold Member

    Look at the Hall effect in an n-type semiconductor and a p-type semiconductor.

  4. daniel_i_l

    daniel_i_l 866
    Gold Member

    Because of the uncertainty principle there's always a probability that the electron will change it's state. so if we take a set of base states where each state x corresponds to the electron being at atom x then if atom x has a "hole" (missing an atom) there's always a non zero probability that an electron in the state x-1 will go into state "x" and then the hole will have moved to the left. (the same thing applys to electrons at other atoms)
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