journal article·2020-09Open access

3D Ordering at the Liquid–Solid Polar Interface of Nanowires

Mahdi Zamani, Giulio Imbalzano, Nicolas Tappy, Duncan T. L. Alexander, Sara Martí‐Sánchez, Lea Ghisalberti, Quentin M. Ramasse, Martin Friedl, Gözde Tütüncüoglu, Luca Francaviglia, Sebastien Bienvenue, Cécile Hébert, Jordi Arbiol, Michele Ceriotti, Anna Fontcuberta i Morral

Advanced Materials· Volume 32· Issue 38

Abstract

Abstract The nature of the liquid–solid interface determines the characteristics of a variety of physical phenomena, including catalysis, electrochemistry, lubrication, and crystal growth. Most of the established models for crystal growth are based on macroscopic thermodynamics, neglecting the atomistic nature of the liquid–solid interface. Here, experimental observations and molecular dynamics simulations are employed to identify the 3D nature of an atomic‐scale ordering of liquid Ga in contact with solid GaAs in a nanowire growth configuration. An interplay between the liquid ordering and the formation of a new bilayer is revealed, which, contrary to the established theories, suggests that the preference for a certain polarity and polytypism is influenced by the atomic structure of the interface. The conclusions of this work open new avenues for the understanding of crystal growth, as well as other processes and systems involving a liquid–solid interface.
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Research context

OpenAlex topics: nanoparticles nucleation surface interactions · Nanowire Synthesis and Applications · ZnO doping and properties

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

Affiliations

Laboratory of Semiconductor Materials Institute of Materials Faculty of Engineering École Polytechnique Fédérale de Lausanne EPFL Lausanne 1015 Switzerland

Laboratory of Computational Science and Modeling Institute of Materials Faculty of Engineering École Polytechnique Fédérale de Lausanne EPFL Lausanne 1015 Switzerland

Electron Spectrometry and Microscopy Laboratory Institute of Physics Faculty of Basic Sciences École Polytechnique Fédérale de Lausanne EPFL Lausanne 1015 Switzerland

Interdisciplinary Centre for Electron Microscopy (CIME) École Polytechnique Fédérale de Lausanne EPFL Lausanne 1015 Switzerland

Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB, Bellaterra Barcelona Catalonia 08193 Spain

SuperSTEM Laboratory SciTech Daresbury Campus Keckwick Lane Daresbury WA4 4AD UK

School of Chemical and Process Engineering and School of Physics and Astronomy University of Leeds Leeds LS2 9JT UK

Institute of Materials Faculty of Engineering École Polytechnique Fédérale de Lausanne EPFL Lausanne 1015 Switzerland

ICREA Pg. Lluís Companys 23 Barcelona, Catalonia 08010 Spain

Institute of Physics Faculty of Basic Sciences École Polytechnique Fédérale de Lausanne EPFL Lausanne 1015 Switzerland

Funding

National Center of Competence in Research Quantum Science and Technology · National Center of Competence in Research Materials’ Revolution: Computational Design and Discovery of Novel Materials · Generalitat de Catalunya · Ministerio de Economía y Competitividad · Engineering and Physical Sciences Research Council

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