Chandrasekar Sivakumar

3 Questions 8 Answers 0 Followers

Questions related from Chandrasekar Sivakumar

How to calculate Band gap from UV-Abs for Nanowires dispersed in DI water?

Dear researchers, To calculate bandgap using Tauc relation from UV Abs data of thin-film samples, firstly we need to have Absorption coefficient which is calculated from absorption coefficient...

29 April 2021 2,868 5 View

Is it necessary to maintain the charge neutrality during Periodic DFT simulation (VASP)?

Dear researchers, When modelling a simulation cell to study the adsorption of Phosphate ion (PO4-3, HPO4-2, and H2PO4-) on a crystal surface (Goethite), there is a charge imbalance due to the...

22 June 2020 3,451 7 View

Why SEM has low vertical resolution than its horizontal resolution?

Basically the BSE has low resolution than the Secondary Electrons (SE). But totally SEM including FE-SEM resulting in low vertical resolution, Why?

27 May 2018 594 5 View