An accurate method to determine the band gap

Michell
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Summary:: What is an accurate method to determine the band gap?

What is an accurate method to determine the band gap?
 
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Spectroscopy?
The band gap of what?
 
Baluncore said:
Spectroscopy?
The band gap of what?
1. I have already read the method in which spectroscopy is performed. But I did not understand at all. If this method is accurate, how does it work?
2. Semiconductor band gap
 
I have moved the thread to the homework forum.
 
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