Ultrafast spectroscopy of excited state dynamics in metal-halide perovskite semiconductors - novel functional materials for optoelectronics

Metal-halide perovskites have emerged as promising solution-processable semiconductors for optoelectronic applications. These materials show unexpectedly high luminescence yields and long carrier lifetimes under operating conditions. Facile changes in composition during fabrication can be used to control their optical properties, and the nature of electronic states. Recently, the ad-mixture of monovalent cations to the precursor solution has been demonstrated to maximize the luminescence yields and device performance, which harvests photon-recycling effects that were demonstrated by us. Fundamentally, the properties and dynamics of the perovskites’ electronic states are controlled by their crystal structure and symmetry. Strong spin-orbit coupling was predicted to introduce Rashba-type state splitting in the electronic band

Student event: Meet the speaker

We invite you to a student-only discussion-round with Dr. Felix Deschler before his Munich Physics Colloquium talk. Be curious and feel free to ask any question.
Monday, 5th of November 2018, 16:00 h, Seminar room PH 3268 (upper floor), Physik-Department der TUM, James-Franck-Straße 1, Garching.