semi-conductor doping

Discussion in 'Homework Help' started by ElectroVita, Jan 10, 2015.

  1. ElectroVita

    Thread Starter New Member

    Jan 10, 2015
    1
    0
    We know that a static positive charge appears on the impurity atom in n-type doping when its extra electron moves from valence band to conduction band. My question is that why a static negative charge appears on the impurity atom in p-type doping when only its hole is being filled by an electron from the neighboring atom?o_O Confused!
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    What? If you lose an electron (n-type) you become positive. If you gain an electron (p-type) you become negative.
     
Loading...