Enhanced screening and spectral diversity in many-body elastic scattering of excitons in two-dimensional hybrid metal-halide perovskites
We quantify the role of many-body elastic scattering effects on exciton dephasing rates in two-dimensional hybrid metal-halide perovskites by means of nonlinear coherent excitation spectroscopy at a AEG HGB75420YM Gas Hob temperature of 5 K.We find that the exciton-density dependence of excitation-induced dephasing (EID) is two to three orders of m