Madawa Madusanka

4 Questions 4 Answers 0 Followers

Questions related from Madawa Madusanka

How to analyse Dielectric function graph obtained from VASP to find the effect on solar absorption ?

I have calculated the frequency dependent dielectric function of cubic CH3NH3PbI3 using VASP. Imaginary and real parts of the dielectric function have been graphed as below. I need to know the...

07 November 2019 6,600 3 View

How to find frequency dependent dielectric properties of Hybrid perovskite (Eg. CH3NH3BiI3 , CH3NH3SnI3) ?

This is my first attempt to calculate dielectric function. I was trying to calculate dielectric function using VASP as it is advised in the tutorial in VASP. Its a 3 step process. 1.Standard...

24 August 2019 4,788 4 View

What are the units of x and y axis of a E-K diagram..?

I did a ab-initio calculation on MAPbI3. But, i got very small effective masses for holes and electrons [0.0033mo and 0.0064mo].Second derivatives of E-K diagram are as follows....

31 July 2019 4,208 4 View

How to calculate effective mass of holes and electrons of perovskite materials using the band structures?

I have found the band structure of MAPbI3 using VASP. And calculated 2nd derivatives of both VBM and CBM. And I calculated the effective mass by m*=square of reduced plank constant/Second...

17 June 2019 1,707 3 View