Bandgap Values for GaAs and Si

  1. Defennder

    Defennder 2,616
    Homework Helper

    I'm doing a lab report on optical absorption of semiconductors. As such I would like to verify the values of the bandgap Eg which I have calculated through experiment. I tried searching Google but I got a lot of results to technical papers which didn't help at all. I would like to know if anyone here can tell me the bandgap value for both GaAs and Si. Thanks.
     
  2. jcsd
  3. ZapperZ

    ZapperZ 30,307
    Staff Emeritus
    Science Advisor
    Education Advisor

    Si: http://www.ioffe.rssi.ru/SVA/NSM/Semicond/Si/bandstr.html

    GaAs: http://www.ioffe.rssi.ru/SVA/NSM/Semicond/GaAs/bandstr.html

    Note that Si does not have a direct band gap, at least for the crystalline Si.

    Zz.
     
  4. Defennder

    Defennder 2,616
    Homework Helper

    Thanks Zz.
     
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