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MOS Capacitor

  1. Jul 19, 2013 #1
    Hello,

    In a MOS capacitor or MIS after applying a voltage on the metal, the valence band and the conduction band bend downwards
    (in the usual band diagram) when a positive voltage is applied. (p-type semiconductor).
    When the voltage is large enough, electrons forms an inverse layer(green) with an energy level E1, as shown in below picture.

    00606-2.jpg

    Now my question is,
    How the electrons lost their energy by falling from higher conduction energy level (Ec) to lower inversion level E1.. ?

    Thanks..
     
  2. jcsd
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