Dynamic THz Signatures Of Charge-lattice Correlations

Plenary talk (PLEN6)

Wed, 11 Nov 2020 11:00pm to 11:45pm

Room: Niagara

Attend in Zoom

The hybrid metal halide perovskites have shown enormous promise for optoelectronic devices including efficient photovoltaics, however their insensitivity to defects has remained puzzling. Polaron correlations have been cited as a possible means to protect charge carriers from defect scattering. In this paper, we show time-resolved THz spectroscopy measurements are capable of directly probing polaron correlations via an intra-band coherent beat arising from center-of-mass quasi-particle motion and the internal motion of charge within its self-induced potential.

Presenters and Authors Info

Presenter: Anonymous

Authors: Cooke, David; Lan, Yang; Valverde-Chavez, David; Dringoli, Benjamin; Ponseca Jr., Carlito; Sutton, Mark; Kanatzidis, Mercouri; He, Yihui

Georgia Institute of Technology, Linköping Universitet, McGill University, Northwestern University