what makes a semiconductor have a direct or indirect bandgap?

Subject: what makes a semiconductor have a direct or indirect bandgap?

Date: Tue Apr 2 00:57:31 2002
Posted by Marc
Grade level: undergrad School: uofi
City: champaign State/Province: IL Country: US
Area of science: Engineering
ID: 1017727051.Eg

Message:


I would like a physically intuitive answer, instead of the response that it 
depends on the relationship of the conduction band min to the valence band 
maxima.

Re: what makes a semiconductor have a direct or indirect bandgap?

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