Programming Atomically Thin TMD Monolayers to Form 3D Shapes

ORAL

Abstract

Atomically- and near atomically-thin sheets can be programmed to form 3D shapes by spatially designing internal strains. We explore means of programming stretching and bending strains into 2D TMD monolayers, enabling 3D shape design and tunability of structural, mechanical, and optoelectronic properties. We present a general plate theory-based thermodynamic formalism for shape programming with elastic sheets and apply it via numerical simulation to various TMD systems and geometries. Our description is informed by input parameters computed from first-principles. It provides a quantitative framework for outlining paths toward designer 2D material systems with optimized shape and functional properties via the ability to program both stretching and bending strains locally. Potential applications are broad and include flexible / foldable electronics and nano-structured catalytic materials.

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Presenters

  • Joel Berry

    Department of Materials Science and Engineering, University of Pennsylvania

Authors

  • Joel Berry

    Department of Materials Science and Engineering, University of Pennsylvania

  • Simeon Ristić

    Department of Materials Science and Engineering, University of Pennsylvania

  • Songsong Zhou

    Department of Materials Science and Engineering, University of Pennsylvania

  • Jiwoong Park

    University of Chicago, Chemistry, University of Chicago, Cornell Univ, Department of Chemistry, Institute for Molecular Engineering, and James Franck Institute, University of Chicago

  • David Srolovitz

    Department of Materials Science and Engineering, Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania