Md. Mahmud Hasan

2 Questions 4 Answers 0 Followers

Questions related from Md. Mahmud Hasan

Is it possible to observe both kind of band gap in a material simultaneously?

I have synthesized plasma polymerized thin films. From UV-Vis data, I have calculated direct and indirect band gap using Tauc relation. Is it possible to observe both kinds of band gap in a...

15 September 2021 8,421 4 View

What is the physical significance of negative dielectric constant?

I have calculated the dielectric constant of plasma polymerized thin films. For some samples, I have found the negative value of the dielectric constant. Please explain the physical significance...

25 February 2021 1,623 4 View