Nanoindentation on Monolayer Kirigami MoS<sub>2</sub>
ORAL
Abstract
Kirigami is an ancient technique that alters the structure and flexibility of materials. This presentation will focus on molecular dynamics (MD) simulations of mechanical properties of atomically thin kirigami MoS2 membranes. Two kirigami structures — rectangular and hexagonal patterns — are studied in indentation simulations. Our simulations reveal dramatic changes in the ductility of monolayer kirigami MoS2 compared with regular MoS2 monolayer. We observe the inelastic response of kirigami MoS2 membranes under indentation. We also identify the role of defects in the inelasticity of kirigami MoS2. Results for other mechanical properties of kirigami MoS2 will also be presented.
*This work was supported as part of the Computational Materials Sciences Program funded by the U.S. Department of Energy, Office of Science, and Basic Energy Sciences, under Award Number DE-SC0014607. The simulations were performed at the Argonne Leadership Computing Facility under the DOE INCITE program and at the Center for High Performance Computing of the University of Southern California.
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Presenters
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Beibei Wang
- University of Southern California