M. Reefaz Rahman

4 Questions 4 Answers 0 Followers

Questions related from M. Reefaz Rahman

After formation of a thin film, should the urbach energy value be always less than that of bandgap energy?

if the values of urbach energies come greater than the values of bandgap energy, what does this bear significance?

02 February 2020 1,549 3 View

May I get a list of structural, optical, electrical etc. characterizations parameters of thin films?

It can be like grain size, dislocation density, absorbance, transmittance, absorption coefficient, bandgap and urbach energy measurement, hall effect, sheet resistance etc.

11 November 2019 9,239 2 View

May I get assisted with some articles which refers to two separate metals like Mg and Cu doped ZnO thin film for its characterization methods?

Actually I can not find any suitable articles which can clarify about the compare and contrast technique of any parameters I obtain, like the bandgap. How can I write in quality; the compare and...

05 May 2017 8,541 0 View

Can the bandgap of Sn doped ZnO thin film be lower than lowest redshift using enhanced doping?

What is behind logic in the doping effect of Sn-doped ZnO thin film to work on red shift effect in its band gap? Can it be lower than 3.18 eV? what does it mean in the following...

04 April 2017 4,776 4 View