Pressure-dependent electrical conductivity of freestanding three-dimensional carbon nanotube network

被引：19

作者：

Camilli, Luca ^{[1
]}

Pisani, Claudia ^{[1
]}

Passacantando, Maurizio ^{[2
]}

Grossi, Valentina ^{[2
]}

Scarselli, Manuela ^{[1
]}

Castrucci, Paola ^{[1
]}

De Crescenzi, Maurizio ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[2] Univ Aquila, Dipartimento Sci Fis & Chim, I-67100 Laquila, Italy

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 18期

关键词：

SULFUR;

D O I：

10.1063/1.4804385

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dependence of electrical conductivity on compression of a freestanding three-dimensional carbon nanotube (CNT) network is investigated. This macrostructure is made of mm-long and entangled CNTs, forming a random skeleton with open pores. The conductivity linearly increases with the applied compression. This behaviour is due to increase of percolating pathways-contacts among neighbouring CNTs-under loads that is highlighted by in situ scanning electron microscopy analysis. The network sustains compressions up to 75% and elastically recovers its morphology and conductivity during the release period. The repeatability coupled with the high mechanical properties makes the CNT network interesting for pressure-sensing applications. (c) 2013 AIP Publishing LLC.

引用

页数：3

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