Nanoscale friction and adhesion behavior for few-layer graphene

Xin Z. Liu; Ounyang Li; Changgu Lee; Baolei Zhang; James Hone; Robert W. Carpick

Nanoscale friction and adhesion behavior for few-layer graphene

Xin Z. Liu, Ounyang Li, Changgu Lee, Baolei Zhang, James Hone, Robert W. Carpick

Department of Mechanical Engineering

Research output: Contribution to specialist publication › Article

1 Scopus citations

Abstract

In this work, we studied the friction and adhesion characteristics between exfoliated 2-D materials and nanoscale single asperity tips using AFM. We observed layer-dependent friction for graphene. This observation coupled with finite element modeling (FEM) suggests that the trend is caused by the puckering effect of the thin graphene sheets. Regular FD spectroscopy also showed that the pull-off force between graphene and the AFM tip did not have an appreciable dependence on the number of layers, which is consistent with FEM predictions. However, our preliminary results obtained using a modified form of FD spectroscopy suggest that the graphene adhesion has a sliding-history dependence.

Original language	English
Pages	12-14
Number of pages	3
Volume	67
No	11
Specialist publication	Tribology and Lubrication Technology
State	Published - Nov 2011

Cite this

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title = "Nanoscale friction and adhesion behavior for few-layer graphene",

abstract = "In this work, we studied the friction and adhesion characteristics between exfoliated 2-D materials and nanoscale single asperity tips using AFM. We observed layer-dependent friction for graphene. This observation coupled with finite element modeling (FEM) suggests that the trend is caused by the puckering effect of the thin graphene sheets. Regular FD spectroscopy also showed that the pull-off force between graphene and the AFM tip did not have an appreciable dependence on the number of layers, which is consistent with FEM predictions. However, our preliminary results obtained using a modified form of FD spectroscopy suggest that the graphene adhesion has a sliding-history dependence.",

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AU - Liu, Xin Z.

AU - Li, Ounyang

AU - Lee, Changgu

AU - Zhang, Baolei

AU - Hone, James

AU - Carpick, Robert W.

PY - 2011/11

Y1 - 2011/11

N2 - In this work, we studied the friction and adhesion characteristics between exfoliated 2-D materials and nanoscale single asperity tips using AFM. We observed layer-dependent friction for graphene. This observation coupled with finite element modeling (FEM) suggests that the trend is caused by the puckering effect of the thin graphene sheets. Regular FD spectroscopy also showed that the pull-off force between graphene and the AFM tip did not have an appreciable dependence on the number of layers, which is consistent with FEM predictions. However, our preliminary results obtained using a modified form of FD spectroscopy suggest that the graphene adhesion has a sliding-history dependence.

AB - In this work, we studied the friction and adhesion characteristics between exfoliated 2-D materials and nanoscale single asperity tips using AFM. We observed layer-dependent friction for graphene. This observation coupled with finite element modeling (FEM) suggests that the trend is caused by the puckering effect of the thin graphene sheets. Regular FD spectroscopy also showed that the pull-off force between graphene and the AFM tip did not have an appreciable dependence on the number of layers, which is consistent with FEM predictions. However, our preliminary results obtained using a modified form of FD spectroscopy suggest that the graphene adhesion has a sliding-history dependence.

UR - https://www.scopus.com/pages/publications/80955168100

M3 - Article

AN - SCOPUS:80955168100

SN - 1545-858X

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SP - 12

EP - 14

JO - Tribology and Lubrication Technology

JF - Tribology and Lubrication Technology

ER -

Nanoscale friction and adhesion behavior for few-layer graphene

Abstract

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