Toward directional motion on graphene by uniaxial strain

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Mofidi, S. M

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Type of Document: Article
DOI: 10.1007/s40997-023-00676-4
Publisher: 2024
Abstract:
In this work, we report our analysis of potential energy surfaces and molecular dynamics studies to characterize the motion of C60, a popular wheel for nanotransporters, on graphene substrates with systematically controlled strains. Our studies reveal that on the verge of 20%, uniaxial strain can increase the activation energy barrier such that it reduces the diffusion coefficient and anomaly parameter of motion in one direction while still allowing diffusion in the other. In other words, stretched graphene along the armchair direction can potentially provide a corridor for C60 to pass along the zigzag direction. Furthermore, the rolling motion of C60 is prevented by strain, while the molecule can still spin around the vertical axis even at 20% strain. These data provide a new insight for the development of future nanotransport systems. © The Author(s), under exclusive licence to Shiraz University 2023
Keywords:
Diffusive motion ; Directed motion ; Graphene surface ; Nanotransportation ; Strained graphene
Source: Iranian Journal of Science and Technology - Transactions of Mechanical Engineering ; Volume 48, Issue 2 , 2024 , Pages 691-700 ; 22286187 (ISSN)
URL: https://link.springer.com/article/10.1007/s40997-023-00676-4