Nanoindentation on Monolayer MoS 2 Kirigami

Wang, Beibei; Nakano, Aiichiro; Vashishta, Priya D.; Kalia, Rajiv K.

doi:10.1021/acsomega.9b00771

Title: Nanoindentation on Monolayer MoS ₂ Kirigami

Journal Article · 07 June 2019 · ACS Omega

DOI: https://doi.org/10.1021/acsomega.9b00771 · OSTI ID:1525331

^[1];

^[1]; Kalia, Rajiv K. ^[1]

Univ. of Southern California, Los Angeles, CA (United States)

Mechanical properties of materials can be altered significantly by the ancient art of kirigami. We study the mechanical properties of atomically thin kirigami membranes of MoS₂ using molecular dynamics simulations. Nanoindentation simulations are performed to study the mechanical response of rectangular and hexagonal kirigami structures. Dramatic changes are observed in the ductility of monolayer kirigami MoS₂ compared with those of a pristine MoS₂ monolayer. Load-displacement curves of kirigami structures exhibit negligible hysteresis, and kirigami structures display remarkable elastic recovery upon unloading. Defects formed at the edges and corners of kirigami structures play an important role in the mechanical response of the membranes.

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Research Organization:: Univ. of Southern California, Los Angeles, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0018195

OSTI ID:: 1525331

Alternate ID(s):: OSTI ID: 1530178; OSTI ID: 1530187

Journal Information:: ACS Omega, Vol. 4, Issue 6; ISSN 2470-1343

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 8 works

Citation information provided by
Web of Science

References (31)

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