I synthesized BiFeO3 in sol-gel route. Littile amount of Bi2Fe4O9 phase is detected in XRD. Does this impurity phase has any effect on the optical band gap of BiFeO3?
I think that if there is no chemical interaction between the impurity and BiFeO3 then no effect it will have on the optical gap.
What is impurity?
Dear Gholamreza
Please see the question asked by Abhishek above.
Thank you for your ans. @Mohammad Kooti Sir
Good Answer Mohammad Kooti
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