Directional growth of polypyrrole and polythiophene wires

被引：41

作者：

Thapa, Prem S. ^{[1
]}

Yu, Deok Jin ^{[1
]}

Wicksted, James P. ^{[1
]}

Hadwiger, Jeffrey A. ^{[2
]}

Barisci, Joseph N. ^{[3
]}

Baughman, Ray H. ^{[3
]}

Flanders, Bret N. ^{[1
]}

机构：

[1] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

[2] Oklahoma State Univ, Dept Microbiol & Mol Genet, Stillwater, OK 74078 USA

[3] Univ Texas Dallas, Nanotech Inst, Richardson, TX 75083 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 03期

基金：

美国国家卫生研究院; 美国国家科学基金会;

关键词：

conducting polymers; electrical conductivity; nanowires; POLYMER NANOWIRES; PEDOT; FABRICATION;

D O I：

10.1063/1.3072611

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This work establishes an innovative electrochemical approach to the template-free growth of conducting polypyrrole and polythiophene wires along predictable interelectrode paths up to 30 mu m in length. These wires have knobby structures with diameters as small as 98 nm. The conductivity of the polypyrrole wires is 0.5 +/- 0.3 S cm(-1); that of the polythiophene wires is 7.6 +/- 0.8 S cm(-1). Controlling the growth path enables fabrication of electrode-wire-target assemblies where the target is a biological cell in the interelectrode gap. Such assemblies are of potential use in cell stimulation studies.

引用

页数：3

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