Bandgap energy may be obtained from CV. Please see J.chem. Phy 119,2333 (2003) and other references.

Dear

I can suggest a Uv-Vis way for determination of bad gap meal oxid

If you want please send a Email for me

[email protected]

Best regards

Dear Karimi-maleh,

Kindly share with me the UV-Vis-IR way of determinating the band gap of metal oxide.

Thanks.

John

Dear Dhrubajyoti Bhattacharjya,

I would also suggest to use UV-Vis-IR technique. You can determine the wavelength of the cut-off in your spectrum and calculate the band gap from the following equation:E = h*c/λ, where E is in Joules, so you can easily switch to eV taking into account that 1eV = 1.6 X 10-19 Joules. h is Planks constant, c is the speed of light, and λ is the cut-off wavelength.

Good luck!

Bandgap energy may be obtained from CV. Please see J.chem. Phy 119,2333 (2003) and other references.

Thanks for all of the responses. I will like to determine the band gap by uv vis spectroscopy also, but there is a difference between optical band gap and electrical band gap. Thats why I want to know the electrochemical route also.