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What is a conductive material which contains extra "holes"?

  1. Dec 23, 2014 #1
    There are conductors with loosely bound electrons such as Cu, what is a conductor that contains loosely bound "holes"?
    Last edited: Dec 23, 2014
  2. jcsd
  3. Dec 23, 2014 #2

    Doug Huffman

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    Gold Member

    Charge carriers are a phenomena of semi-conductors. Conductors like copper have no unfilled holes.
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