Nanomechanics of Individual Carbon Nanotubes from Pyrolytically Grown Arrays | Zendy

Ruiping Gao | Zendy; Zhong Lin Wang | Zendy; Zhi-gang Bai | Zendy; Walter A. de Heer | Zendy; Liming Dai | Zendy; Mei Gao | Zendy

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Nanomechanics of Individual Carbon Nanotubes from Pyrolytically Grown Arrays

Author(s) -

Ruiping Gao,

Zhong Lin Wang,

Zhi-gang Bai,

Walter A. de Heer,

Liming Dai,

Mei Gao

Publication year - 2000

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.85.622

Subject(s) - nanomechanics , carbon nanotube , materials science , resonance (particle physics) , nanomaterials , nanotechnology , transmission electron microscopy , nanotube , torr , analytical chemistry (journal) , atomic physics , atomic force microscopy , physics , chemistry , thermodynamics , organic chemistry

The bending modulus of individual carbon nanotubes from aligned arrays grown by pyrolysis was measured by in situ electromechanical resonance in transmission electron microscopy (TEM). The bending modulus of nanotubes with point defects was approximately 30 GPa and that of nanotubes with volume defect was 2-3 GPa. The time-decay constant of nanotube resonance in a vacuum of 10(-4) Torr was approximately 85 micros. A femtogram nanobalance was demonstrated based on nanotube resonance; it has the potential for measuring the mass of chain-structured large molecules. The in situ TEM provides a powerful approach towards nanomechanics of fiberlike nanomaterials with well-characterized defect structures.

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