Fast relaxation of carbon nanotubes in polymer composite actuators

被引：44

作者：

Ahir, SV ^{[1
]}

Terentjev, EM ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.96.133902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Silicone elastomer composites containing multiwalled carbon nanotubes have been irradiated with near-infrared light to study their mechanical actuation response. We show that the speed of the stimulated response is faster than Debye relaxation, instead following a compressed-exponential law. However, the relaxation after switching off the light source follows the simple-exponential relaxation, as does the stimulated response at very low nanotube concentration. We discuss possible models and explanations to account for the fast photomechanical response.

引用

页数：4

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