- #1
scivet
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I'm wondering what determines Si indirect semiconductor?
Si is cubic diamond structure. So it's optically and electrically isotropic (1st&2nd rank tensor properties). And why is GaAs direct semiconducto even though its crystal structer and chemical bonding is so simliar to Si?
Isn't it crystal structure-related?
Is there any cubic structure materials with indirect band gap?
Thanks in advance.
Si is cubic diamond structure. So it's optically and electrically isotropic (1st&2nd rank tensor properties). And why is GaAs direct semiconducto even though its crystal structer and chemical bonding is so simliar to Si?
Isn't it crystal structure-related?
Is there any cubic structure materials with indirect band gap?
Thanks in advance.