Length dependent behavior of a carbon nanotube interacting at liquid-air interface

被引：5

作者：

de Asis, Edward D., Jr. ^{[1
,2
]}

Li, You ^{[1
,3
]}

Ohta, Riichiro ^{[4
]}

Austin, Alex ^{[3
]}

Leung, Joseph

Nguyen, Cattien V. ^{[1
]}

机构：

[1] NASA, Ames Res Ctr, ELORET Corp, Moffett Field, CA 94035 USA

[2] Santa Clara Univ, Dept Elect Engn, Santa Clara, CA 95053 USA

[3] Stanford Univ, Stanford, CA 94305 USA

[4] Univ Calif Santa Cruz, Univ Affiliated Res Ctr, Santa Cruz, CA 95064 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 02期

关键词：

D O I：

10.1063/1.2953688

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the irreversible structural failure of individual multiwalled carbon nanotube (MWNT) tips after water submersion. We used 11 individual MWNTs with varying geometries and showed length dependent MWNT failure with scanning electron microscopy. Shorter MWNTs are more likely to survive penetration of the water-air interface. We observed the bending of MWNT probes on the water surface using optical microscopy. Surface tension force acting on MWNTs at the water-air interface was calculated. Compared to shorter MWNTs, the calculations suggest that longer MWNTs exert a smaller bending restoring force with respect to surface tension force, leading to MWNT bending until failure. (C) 2008 American Institute of Physics.

引用

页数：3

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