|
|
|
|
|
|
|
|
 The momentum-integrated inelastic neutron scattering intensity (black line) of MAPbI3 is plotted in a log scale of energy. The blue line is the calculated PDOS without van der Waals (vdW) corrections, while the red line is the PDOS with van der Waals (vdW) corrections. Dark green marks represent the calculated phonon energies for an isolated MA molecule. |
Phonon density of states (PDOS) of MAPbI3