Abstract

Kirigami, the ancient Japanese art of cutting and folding paper at the macroscale, has been recently applied to produce nanostructures with unusual deformation mechanisms. In this work we analyse the mechanical properties and deformation mechanisms leading to remarkable stretching and bilinear stiffness in armchair and zigzag hexagonal boron nitride (h-BN) Kirigami nanosheets using classical molecular dynamics simulations. We identify three geometric parameters that govern the mechanics and ductility of Kirigami h-BN. Enhancements in tensile strains up to 3–5 times higher than those of pristine h-BN can be obtained. The variations of stiffness, ultimate strength and strain with the parameters defining the Kirigami defect patterns can be used to tune the mechanical properties of h-BN and other nano 2D structures, potentially expanding their applications in bio-compatible strain-engineered nanodevices and nanoelectronics.
Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalThin Solid Films
Volume632
Early online date31 Mar 2017
DOIs
Publication statusPublished - 30 Jun 2017

Keywords

  • Hexagonal boron nitride
  • Kirigami
  • Mechanical properties
  • Molecular dynamics

Fingerprint Dive into the research topics of 'Super stretchable hexagonal boron nitride Kirigami'. Together they form a unique fingerprint.

Cite this