DataVXAdvanced Materials InterfacesPaper
journal article·2019-04Open access

Amino Acid Immobilization of Copper Surface Diffusion on Cu(111)

Nathan P. Guisinger, Andrew J. Mannix, Rees B. Rankin, Brian Kiraly, Jesse A. Phillips, Seth B. Darling, Brandon L. Fisher, Mark C. Hersam, Erin V. Iski

Advanced Materials Interfaces· Volume 6· Issue 7
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Source abstract

Abstract

Abstract Surface diffusion and molecular self‐assembly are two critically important processes in chemistry and nature. Amino acids deposited on a Cu(111) surface driving a separation at the 2D limit between self‐assembling molecules and diffusing copper atoms is reported. Since the self‐assembling amino acids prefer non‐planar, tridentate bonding with neighboring adatoms, they attach to and immobilize diffusing copper adatoms on the surface. This chemical interaction freezes out the copper diffusion causing the condensation of “solid” copper adatom islands on the surface. Such separation and immobilization are observed for eight different amino acids, suggesting the generality of this phenomenon beyond a single amino acid species. Furthermore, at elevated temperatures, a disruption of the prototypical Ostwald ripening of adatom islands is also observed. These results provide fundamental insight into chiral molecular self‐assembly and its interplay with metal atom surface diffusion.
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Research context

OpenAlex topics: Surface Chemistry and Catalysis · Molecular Junctions and Nanostructures · Theoretical and Computational Physics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Nanoscale Materials Argonne National Laboratory 9700 South Cass Avenue, Building 440 Argonne IL 60439 USA

Department of Materials Science and Engineering Northwestern University 2220 Campus Drive Evanston IL 60208 USA

Department of Chemical Engineering Villanova University 800 E Lancaster Ave Villanova PA 19085 USA

Department of Chemistry and Biochemistry The University of Tulsa 800 South Tucker Drive Tulsa OK 74104 USA

Chemical Sciences & Engineering Division Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA

Institute for Molecular Engineering Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA

Institute for Molecular Engineering The University of Chicago 5640 South Ellis Avenue Chicago IL 60637 USA

Department of Chemistry Northwestern University 2220 Campus Drive Evanston IL 60208 USA

Funding

U.S. Department of Energy · University of Tulsa · Office of Naval Research

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