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Silicon exhibits metallic luster

  1. Mar 28, 2007 #1
    why should silicon exhibit metallic luster when viewed in visible light, yet be transparent when viewed in infrared light?
  2. jcsd
  3. Mar 29, 2007 #2


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    Look at the energy range of visible light, and look at the energy range of IR. Now compare those to the band gap of silicon.

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