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Sub-angstrom noninvasive imaging of atomic arrangement in 2D hybrid perovskites
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SYSNO ASEP 0557449 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Sub-angstrom noninvasive imaging of atomic arrangement in 2D hybrid perovskites Author(s) Telychko, M. (SG)
Edalatmanesh, Shayan (FZU-D) ORCID
Leng, K. (CN)
Abdelwahab, I. (SG)
Guo, N. (SG)
Zhang, C. (SG)
Mendieta Moreno, Jesús Ignacio (FZU-D) ORCID
Nachtigall, Matyáš (FZU-D)
Li, J. (SG)
Loh, K.P. (SG)
Jelínek, Pavel (FZU-D) RID, ORCID
Lu, J. (SG)Number of authors 12 Article number eabj0395 Source Title Science Advances. - : American Association for the Advancement of Science - ISSN 2375-2548
Roč. 8, č. 17 (2022)Number of pages 8 s. Language eng - English Country US - United States Keywords nc-AFM ; DFT ; perovskites ; atomic structure Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GX20-13692X GA ČR - Czech Science Foundation (CSF) Research Infrastructure CzechNanoLab - 90110 - Vysoké učení technické v Brně Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000790076700005 EID SCOPUS 85129202408 DOI 10.1126/sciadv.abj0395 Annotation Noninvasive imaging of the atomic arrangement in two-dimensional (2D) Ruddlesden-Popper hybrid perovskites (RPPs) is challenging because of the insulating nature and softness of the organic layers. Here, we demonstrate a sub-angstrom resolution imaging of both soft organic layers and inorganic framework in a prototypical 2D lead-halide RPP crystal via combined tip-functionalized scanning tunneling microscopy (STM) and noncontact atomic force microscopy (ncAFM) corroborated by theoretical simulations. STM measurements unveil the atomic reconstruction of the inorganic lead-halide lattice and overall twin-domain composition of the RPP crystal, while ncAFM measurements with a CO-tip enable nonperturbative visualization of the cooperative reordering of surface organic cations driven by their hydrogen bonding interactions with the inorganic lattice. Moreover, such a joint technique also allows for the atomic-scale imaging of the electrostatic potential variation across the twin-domain walls, revealing alternating quasi-1D electron and hole channels at neighboring twin boundaries, which may influence in-plane exciton transport and dissociation. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0333921
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