Md. Nasrul Haque Mia

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Questions related from Md. Nasrul Haque Mia

From XRD curve sharp higher intensity peak with broad FWHM value or lower intensity peak with narrow FWHM value indicate the best crystalline quality?

I developed two Mg doped ZnO thin films on glass substrate of equal thickness 200 nm. One film shows a sharp highest intensity XRD peak along (002) with broad FWHM value were as the another film...

11 July 2017 6,893 9 View

How can I calculate urbach energy from ln(α) vs Photon energy (hv) curve?

I have developed ZnO thin film in nano rod structure on glass substrate and have calculated the absorption coefficient (α) value from absorbance value. I also have plotted ln(α) vs. photon energy...

23 February 2016 726 3 View

How can I use PUMA software for determination of optical constants from transmittance data of UV Vis. spectroscopy?

I have developed ZnO thin film on glass substrate and got transmittance and absorption data from UV Vissible Spectrometer. I want to determine Refractive index as well as other optical constants...

20 September 2015 6,638 1 View

How can I calculate refractive index and extinction co efficient from Transmittance or Absorbance curve of UV Vissible spectra?

I have developed ZnO thin film on glass substrate. I have measured Transmittance and absorbance from UV vissible spectrometer and attached the curve with excel data sheet here. Now I want to...

07 September 2015 1,254 5 View

Can anyone please give me any direction on how I can develop ZnO thin film on glass substrate?

I want to deposit ZnO thin film on glass substrate using the thermal evaporation technique. But I cannot do that because ZnO is powder type and I cannot develop thin film by this powder type ZnO...

18 January 2015 6,890 11 View