Santanu Podder

5 Questions 6 Answers 0 Followers

Questions related from Santanu Podder

How does one can distinguish between Donor-acceptor level transition and free to bound by blueshift and redshift in laser dependent PL spectrum study?

I have got redshift in PL spectra for one material and blueshift in another material with increasing excitation power. I want to interpret the DAP and and free to bound transition clearly. Can...

07 July 2023 3,858 0 View

What is the physical significance of defect related photoluminescence lifetime (Tau3) of ZnO thin film?

I have analyzed the TRPL spectrum of a ZnO thin film with the help of tri-exponential function. As a result, I have got three lifetimes. Tau 1 and Tau 2 are the exitonic lifetimes. But, I want to...

23 July 2021 564 3 View

What is the advantage of nanostructured ZnO thin film over continuous ZnO thin film for optoelectronic application?

31 December 2020 9,800 2 View

How to find out the electron density of a thin film from X-Ray reflectivity (XRR) analysis?

I want to find out the electron density of ZnO thin film deposited on glass substrate. So, how XRR is helpful to this problem?

17 August 2020 8,706 6 View

How to find out the valence band conduction position of oxide semiconductors?

I need to find out the energy levels of valence band and conduction band in case of oxide semiconductors. I want to know about the technique used to do that along with the measurement procedure.

07 July 2020 2,213 9 View