S20.00004 : Atomically-resolved scanning tunneling microscopy of the Cu2O(110) surface

Guest, Jeffrey R, Smerdon, Joe orcid iconORCID: 0000-0002-7387-8362, Zhang, Rui, Paul, Joshua T, Frazer, Laszlo, Poeppelmeier, Kenneth R and Chan, Maria K (2024) S20.00004 : Atomically-resolved scanning tunneling microscopy of the Cu2O(110) surface. In: APS March Meeting 2024, 4-8 March 2024, Minneapolis & Virtual. (In Press)

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Official URL: https://meetings.aps.org/Meeting/MAR24/Session/S20...

Abstract

Photocatalytic reactions on the surface of cuprous oxide (Cu2O) depend on the atomic scale structure of the Cu2O surfaces with respect to surface terminations, reconstructions, and defects. Building on previous work on the Cu2O(111) surface, we perform high-resolution ultrahigh vacuum (UHV) scanning tunneling microscopy (STM) on the (110) surface of bulk crystal Cu2O. The Cu2O(110) surface reveals multiple surface terminations, aggregation of defects and periodic distortions of the atomic rows on the stoichiometric surface termination. Surface assignments have been made by correlating STM images with density functional theory (DFT) calculations combined with STM simulations using the Ingrained tool.


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