Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session G10: High Harmonic Generation
10:30 AM–12:30 PM,
Wednesday, June 5, 2024
Room: 204AB
Chair: Mette Gaarde, Louisiana State University
Abstract: G10.00001 : High-order harmonic generation in a microfluidic device for the investigation of ultrafast dynamics in organic perovskites*
10:30 AM–11:00 AM
Presenter:
Giulia Folpini
(National Research Council (NRC))
Author:
Giulia Folpini
(National Research Council (NRC))
Collaboration:
Bogdan Ispas, Linda Oberti, Stavroula Vovla, Eugenio Cinquanta, Anna G. Ciriolo, Michele Devetta, Davide Faccialá, Roberto Osellame, Luca Poletto, Rebeca Martínez Vázquez, Caterina Vozzi
Metal Halide Perovskites (MHPs) are a class of direct bandgap semiconductors with properties that can be tuned by changing their chemical composition ABX 3 , particularly the metal B (Pb, Sn), and halogen X (I, Br). While their optoelectronic properties, such as long carrier lifetimes and diffusion length and small Stokes shift, are well suited for photovoltaics and light emitting applications [3], the physics of these materials is still not completely understood, e.g. concerning defects from lattice distortions, ionic mobility, the polaronic character of excited free carriers and excitons [5] and the nonradiative losses related to Auger recombination [6]. Typically, MHPs conduction band is composed of orbital states of metal and halogen atoms, making them an interesting system for a transient XUV set up which can access the absorption edges of I and Br. Here we report on developing a beamline for site-sensitive ultrafast XUV spectroscopy to explore nonradiative charge recombination and charge transfer at the femtosecond time-scale in MPHs.
*This project has received funding from the European Union Horizon 2020 research and innovation program under grant agreement No 964588 (X-PIC), by the European ResearchCouncil MSCA-ITN SMART-X (Grant No. 860553), by the European Union’s NextGenerationEU Programme
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