Transparent, Flexible, and Highly Conductive Thin Films Based on Polymer - Nanotube Composites

被引：251

作者：

De, Sukanta ^{[1
,2
]}

Lyons, Philip E. ^{[1
,2
]}

Sorel, Sophie ^{[1
]}

Doherty, Evelyn M. ^{[1
,2
]}

King, Paul J. ^{[1
]}

Blau, Werner J. ^{[1
,2
]}

Nirmalraj, Peter N. ^{[2
,3
]}

Boland, John J. ^{[2
,3
]}

Scardaci, Vittorio ^{[4
]}

Joimel, Jerome ^{[4
]}

Coleman, Jonathan N. ^{[1
,2
]}

机构：

[1] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland

[2] Trinity Coll Dublin, CRANN, Dublin 2, Ireland

[3] Trinity Coll Dublin, Sch Chem, Dublin 2, Ireland

[4] Hewlett Packard DIMO, Leixlip, Co Kildare, Ireland

来源：

ACS NANO | 2009年 / 3卷 / 03期

基金：

爱尔兰科学基金会;

关键词：

transparent film; flexible film; nanotube; conducting polymer; nanocomposite; WALLED CARBON NANOTUBES; PERCOLATION; COATINGS; DISPLAYS;

D O I：

10.1021/nn800858w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have prepared flexible, transparent, and very conducting thin composite films from poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), filled with both arc discharge and HIPCO single-walled nanotubes, at high loading level. The films are of high optical uniformity. The arc discharge nanotube-filled composites were significantly more conductive, demonstrating DC conductivities of > 10(5) S/m for mass fractions > 50 wt %. The ratio of DC to optical conductivity was higher for composites with mass fractions of 55-60 wt % than for nanotube-only films. For an 80 nm thick composite, filled with 60 wt % arc discharge nanotubes, this conductivity ratio was maximized at sigma(DC)/sigma(Op) = 15. This translates into transmittance (550 nm) and sheet resistance of 75 and 80 Omega/square, respectively. These composites were electromechanically very stable, showing < 1% resistance change over 130 bend cycles.

引用

页码：714 / 720

页数：7

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