Lattice dynamics of quasi-2D perovskites from first-principles

Emily Y. Chen, Bartomeu Monserrat

We present the vibrational properties and phonon dispersion for quasi-2D hybrid organic-inorganic perovskites (BA)${}_2$CsPb${}_2$I${}_7$, (HA)${}_2$CsPb${}_2$I${}_7$, (BA)${}_2$(MA)Pb${}_2$I${}_7$,…