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HL: Fachverband Halbleiterphysik

HL 1: Focus Session: When theory meets experiment: Hybrid halide perovskites for applications beyond solar

Montag, 27. September 2021, 10:00–12:45, H4

Hybrid halide perovskites are by now well-established solar absorber and emitter materials, with power conversion efficiencies of single-cell devices exceeding 20 percent. We have observed - with notable exceptions - a widening gap between experimental and theoretical efforts in the literature on halide perovskites. Further, a large fraction of the literature focuses on properties relevant for optoelectronic applications, while we envision a much wider scope for these materials, e.g in spintronic and electrochemical applications. The purpose of this focus session is to provide a platform for theorists and experimentalists working in this field, to interact, present state-of-the-art methods, and exchange their ideas on future directions for this technologically relevant class of materials beyond the current focus on optoelectronics.

Organizers: Linn Leppert (University of Twente) and Felix Dreschler (TU München)

	10:00	HL 1.1	Hauptvortrag: Phonon Screening of Excitons in Halide Perovskites and Beyond — •Marina Filip
	10:30	HL 1.2	Hauptvortrag: Anharmonic semiconductors - Lessons Learned from Halide perovskites — •Omer Yaffe
	11:00	HL 1.3	Hauptvortrag: Exciton structure symmetry analysis for quantum-well layered halide perovskites and charge-energy transfer in presence of π-conjugated organic chromophores — •Claudio Quarti
	11:30		15 min. break.
	11:45	HL 1.4	Hauptvortrag: Solid state ionics of hybrid halide perovskites: equilibrium situation and light effects — •Alessandro Senocrate, Gee Yeong Kim, Tae-Youl Yang, Giuliano Gregori, Michael Grätzel, and Joachim Maier
	12:15	HL 1.5	Hauptvortrag: Unifying Ultrafast Polarization Responses of Lead Halide Perovskites via Two-Dimensional Optical Kerr Effect — •Sebastian F. Maehrlein