Poly(3-hexylthiophene) wrapped carbon nanotube/poly(dimethylsiloxane) composites for use in finger-sensing piezoresistive pressure sensors

被引：157

作者：

Hwang, Jihun ^{[1
]}

Jang, Jaeyoung ^{[1
]}

Hong, Kipyo ^{[1
]}

Kim, Kun Nyun ^{[2
]}

Han, Jong Hun ^{[3
]}

Shin, Kwonwoo ^{[3
]}

Park, Chan Eon ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, Polymer Res Inst, POSTECH Organ Elect Lab, Pohang 790784, South Korea

[2] Korea Elect Technol Inst KETI, Convergence Sensor Res Ctr, Songnam 463816, South Korea

[3] Korea Elect Technol Inst KETI, Energy Nano Mat Res Ctr, Songnam 463816, South Korea

来源：

CARBON | 2011年 / 49卷 / 01期

关键词：

NANOTUBES; NANOCOMPOSITES; BEHAVIOR; POLYTHIOPHENE; MECHANISMS;

D O I：

10.1016/j.carbon.2010.08.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We fabricated a piezoresistive composite using multi walled carbon nanotubes (MWCNTs) as a conductive filler and polydimethylsiloxane (PDMS) as a polymer matrix, which operated in the extremely small pressure range required for finger-sensing To achieve a homo geneous dispersion of MWCNTs in PDMS, the MWCNTs were modified by a polymer wrapping method using poly(3 hexylthiophene) (P3HT) The percolation threshold of the composites was significantly lowered by the presence of P3HT The electrical conductivity and piezoresistive sensitivity of the composite were found to strongly depend on the P3HT concentration The well dispersed P3HT MWCNT/PDMS composite showed good piezoresistive characteristics in the 0-0 12 MPa pressure range (C) 2010 Elsevier Ltd All rights reserved

引用

页码：106 / 110

页数：5

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