Optical band gap of a cobalt ferrite

  • Thread starter sounouhid
  • Start date
  • #1
22
2
Hi everyone
How can I determine the optical band gap of a cobalt ferrite film deposited on a glass substrate using its absorption, transmittance and diffuse reflectance spectrum (knowing that I don't know the thickness of this film)
 

Answers and Replies

  • #3
22
2
thanks Vagn for replying me
but i don't have the thickness of the film (so i can not determine the absorption coefficient alpha that i need for the tauc plot)
 
  • #4
518
64
thanks Vagn for replying me
but i don't have the thickness of the film (so i can not determine the absorption coefficient alpha that i need for the tauc plot)
You can plot αd instead of α.
 
  • #5
22
2
and how can i determine the band gap from that plot
 
  • #6
518
64
and how can i determine the band gap from that plot
Replace the α's for the Tauc plot with αd's. As d is constant, it just changes the scale.
 
  • #7
22
2
i will do it
thank you i really appreciate your help
 

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