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Clasifying semiconductors according their molecular form

  1. Dec 5, 2009 #1
    That's my question: how can I tell, from the molecular form of the compound, if a compound is an intrinsic semiconductor, an extrinsic type-N semiconductor, or an extrinsic type-P semiconductor?

    I can tell the pure intrinsic semiconductors: Si, Ge, C (diamond), etc. I know that if I add an element of the group III to a chain of one of these, I'll get an extrinsic type-N semiconductor, and that if I add an element of the group VI, I'll get an extrinsic type-P semiconductor.

    But what if I have no molecules of any element from the group IV? How about when I have InSb, or GaAs? And how about when I have more than two compounds, like GaAsSe?

    What's the parameter I have to look at to clasify these compounds?
     
  2. jcsd
  3. Dec 9, 2009 #2
    hey dats determined only by finding out valencies of the elements in the compound
     
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