Chemical Physics seminar: Quantification of Spin Relaxation Rates for Chiral Lead Halide Perovskites (Master Thesis Defense)

Seminar given by Jan Planelles I Samper, thesis worker at the division of Chemical Physics. 

Chiral lead halide perovskites are an emergent type of semiconductors that have shown promising results for spintronic applications. The addition of a chiral molecule as a long chain ligand between the perovskite structures adds a new degree of freedom and new tuning possibilities. In this Master Thesis project we investigate the spin dynamics of (R/S/RAC-MBA)2PbI4 with circularly polarized transient absorption (CP-TA) and obtain the spin lifetimes by two different approaches: the generalized intensity difference found in literature and a new kinetic model that separates the carrier decay into its different contributions. 

In this seminar, Jan will present the results obtained and how both methods confirm polarization-dependent dynamics and add new insights into the quantification of spin relaxation rates in chiral hybrid perovskites.