Recent content by sounouhid

OK thank you

Can you please give me a document that help me doing that fit.

Thank you all guys for responding me ,i really appreciate your help.

Hello every one I deposited TiO2 thin layers on glass conductive substrate and then i took there absorption spectra. My question is why do i see interference fringes in the absorption spectra of my samples.

Hello every one How can i convert a spectrum plotted in Diffuse reflectance units to an absorption spectrum in FT-IR spectroscopy knowing that I've a diposed a thin layer of TiO2 into an ITO substrate. thank you

Thank you but my task is to find both the refractive index and the thickness of the film from these two measurements

Hi every one , I want to find the refractive index of a thin film using it's reflectance and transmittance spectrum is there a way to do that ? thank you for advance

Hi Every one I've been looking ,for a while, for a document that talk about the optical constants of CoFe2O4 witout any results can anyone help me finding one thank you for advance

yes i did it using the least squares curve fit ,but the fit parameters are not constant they are function of the input.

thank you but i don't have the the theoretical data .i just have the model ,I'm looking for the fit parameters

Hello everyone help please I need to fit experimental data with a theoretical model using the MATLAB software what is the best way to do it? thx for advance

i will do it thank you i really appreciate your help

and how can i determine the band gap from that plot

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)

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)