Strong Coupling of Self-Trapped Excitons to Acoustic Phonons in Bismuth Perovskite ${\text{Cs}}_3{\text{Bi}}_2{\text{I}}_9$

Xing He, Naveen Kumar Tailor, Soumitra Satapathi +2

To assess the potential optoelectronic applications of metal-halide perovskites, it is critical to have a detailed understanding of the nature, strength, and dynamics of the intera…