Nanomechanics of individual carbon nanotubes from pyrolytically grown arrays

被引：148

作者：

Gao, RP ^{[1
]}

Wang, ZL

Bai, ZG

de Heer, WA

Dai, LM

Gao, M

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[3] CSIRO, Mol Sci, Clayton, Vic 3169, Australia

[4] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.85.622

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The bending modulus of individual carbon nanotubes from aligned arrays grown by pyrolysis was measured by iii situ electromechanical resonance in transmission electron microscopy (TEM). The bending modulus of nanotubes with point defects was similar to 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 similar to 85 mu s. 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.

引用

页码：622 / 625

页数：4

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