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Nanoscale frictional characteristics of graphene nanoribbons
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10.1063/1.4752724
/content/aip/journal/apl/101/12/10.1063/1.4752724
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4752724

Figures

Image of FIG. 1.
FIG. 1.

(a) A typical contact-mode AFM topography image of a GONR, the height measurement details shown in the inset, the height indicates a stack of ∼7 layers. (b) A characteristic SEM image of a GONR stack on a SiO2 surface.

Image of FIG. 2.
FIG. 2.

(a) High-resolution XPS spectra of N-GNRs, (b) K-GNRs, and (c) GONRs; the top inset in (c) is the XPS C1s spectrum of the GONRs.

Image of FIG. 3.
FIG. 3.

Normal force dependences of friction on GONRs, N-GNRs, and K-GNRs in (a) ambient condition, (b) dry nitrogen condition. (c) Thickness independent friction on GONRs in the ambient condition, 3 random data set with different sample thicknesses. (d) Adhesion force for all types of graphene nanoribbons in ambient and low humidity conditions.

Image of FIG. 4.
FIG. 4.

The AFM tip profile before (a) and after (b) friction testing in a typical experiment.

Tables

Generic image for table
Table I.

The thickness measurement of GNRs.

Generic image for table
Table II.

High-resolution XPS results of nanoribbons. N/A indicates an atomic concentration of <0.1% was detected by XPS.

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/content/aip/journal/apl/101/12/10.1063/1.4752724
2012-09-18
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nanoscale frictional characteristics of graphene nanoribbons
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/12/10.1063/1.4752724
10.1063/1.4752724
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