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Retrieving Grain Boundaries in 2D Materials.

Maolin Yu1, Zhili Hu1, Jingzhuo Zhou2

  • 1Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education, State Key Laboratory of Mechanics and Control of Mechanical Structures, and Institute for Frontier Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.

Small (Weinheim an Der Bergstrasse, Germany)
|December 3, 2022
PubMed
Summary
This summary is machine-generated.

Grain boundaries (GBs) in 2D materials are key imperfections impacting properties. This review explores GB formation, structure, and unique functionalities for advanced material applications.

Keywords:
2D materialselectronicsfunctionalitiesgrain boundariesmechanics

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Grain boundaries (GBs) are prevalent structural imperfections in 2D materials synthesized via chemical methods.
  • These GBs significantly influence material properties and offer unique physical and chemical functionalities due to altered atomic structures.

Purpose of the Study:

  • To review recent advances in understanding the formation mechanisms, atomic structures, and functional properties of GBs in various 2D materials.
  • To highlight the potential of GBs as platforms for novel physics and tailored functionalities.

Main Methods:

  • Analysis of growth mechanisms and the interplay between strain and dislocation core energies.
  • Investigating the dependence of GB morphology on lattice misorientations and chemical composition.

Main Results:

  • A comprehensive understanding of diverse GB morphologies and their relationship with material composition and orientation.
  • Demonstration of how GBs impact mechanical, electronic, and chemical properties.

Conclusions:

  • GBs can serve as robust atomic-scale scaffolds for engineering specific functionalities like magnetism, luminescence, and catalysis.
  • Future research should focus on controlled GB formation for designing functional devices, addressing current challenges.