How to know a material has either direct or indirect bandgap energy - 18

You must watch these 2 videos before watching this video.
1. How to calculate bandgap energy from absorption data using the Tauc plot method
   • Band gap energy from absorption data ...  

2. Tauc Plot? 2.303 constant? 1240 constant?
   • Band gap energy (Tauc Plot?  Constant...  
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Understanding the bandgap structure and correct nature of the electronic transition between the valence band and the conduction is very important for those scientists and researchers who are working on optoelectronics devices. In this video, I have shown a simple approach to properly understand the bandgap nature of any material using the Tauc plot method through OriginLab software. After watching this video, you will be able to determine the material has direct or indirect bandgap energy.
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