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Amplitude response of conical multiwalled carbon nanotube probes for atomic force microscopy.

ABSTRACT: Carbon nanotubes are considered as great candidates for atomic force microscopy (AFM) probes because of their high aspect ratio and outstanding mechanical properties. In this work, we report that a conical AFM probe can be fabricated with arc discharge prepared multiwalled carbon nanotubes (MWCNTs) with an individual MWCNT at the apex by dielectrophoresis. The amplitude-displacement curve of the conical MWCNT probe demonstrates that this structure can remain stable until the force exerted on it increases to 14.0 ± 1.5 nN (nanonewton). Meanwhile, the conical MWCNT probes are able to resolve complex structure with high aspect ratio compared to commercial AFM probes, suggesting great potential for various AFM applications.

SUBMITTER: Hu X

PROVIDER: S-EPMC9059376 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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Amplitude response of conical multiwalled carbon nanotube probes for atomic force microscopy.

Hu Xiao X Wei Hang H Deng Ya Y Chi Xiannian X Liu Jia J Yue Junyi J Peng Zhisheng Z Cai Jinzhong J Jiang Peng P Sun Lianfeng L

RSC advances 20181201 1

Carbon nanotubes are considered as great candidates for atomic force microscopy (AFM) probes because of their high aspect ratio and outstanding mechanical properties. In this work, we report that a conical AFM probe can be fabricated with arc discharge prepared multiwalled carbon nanotubes (MWCNTs) with an individual MWCNT at the apex by dielectrophoresis. The amplitude-displacement curve of the conical MWCNT probe demonstrates that this structure can remain stable until the force exerted on it ...[more]

PMID: 35521594

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