The discussion focuses on accurate methods for determining the band gap of semiconductors, specifically through spectroscopy techniques. Participants emphasize the relationship between photon wavelength and energy, referencing the Planck-Einstein relation. Additionally, the concept of electronic band structure is highlighted, explaining that electrons in atoms occupy specific energy levels with gaps in between. Understanding these principles is crucial for accurately measuring the band gap in semiconductor materials.
PREREQUISITESStudents and researchers in semiconductor physics, materials scientists, and anyone involved in the characterization of semiconductor properties.
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?Baluncore said:Spectroscopy?
The band gap of what?
Michell said: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?
Yes, I knew and of course, thank you for the reminder.Baluncore said:1. Do you understand how the wavelength and energy of a photon are related?
https://en.wikipedia.org/wiki/Planck–Einstein_relation
2. Do you understand that an atoms electrons may only have specified energy levels, and that there are gaps between those energy levels?
https://en.wikipedia.org/wiki/Electronic_band_structure