Magnetically Assembled Multisegmented Nanowires and Their Applications

被引：53

作者：

Bangar, Mangesh A. ^{[1
,2
]}

Hangarter, Carlos M. ^{[1
,2
]}

Yoo, Bongyoung ^{[3
]}

Rheem, Youngwoo ^{[1
,2
]}

Chen, Wilfred ^{[1
,2
]}

Mulchandani, Ashok ^{[1
,2
]}

Myung, Nosang V. ^{[1
,2
]}

机构：

[1] Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA

[2] Univ Calif Riverside, Ctr Nanoscale Sci & Engn, Riverside, CA 92521 USA

[3] Hanyang Univ, Div Mat & Chem Engn, Ansan 426791, South Korea

来源：

ELECTROANALYSIS | 2009年 / 21卷 / 01期

关键词：

Anodized alumina; Electrodeposition; Nanowires; Polypyrrole; Photonic devices; Ammonia; Gas sensor; CONDUCTING POLYMER NANOTUBE; CHEMICAL DERIVATIZATION; CONJUGATED POLYMERS; POLYPYRROLE; FABRICATION; TEMPLATE; SENSORS; ARRAYS; WIRES;

D O I：

10.1002/elan.200804372

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Here we report a cost effective and versatile way of synthesizing and assembling multi-functional (e.g., gold-polypyrrole-nickel-gold) nanowires. Multisegmented nanowires were synthesized using electrodeposition method for precise control over segment dimensions for proper expression of material functionality. The nanowires were integrated on microfabricated electrodes using magnetic dipole interactions between the ferromagnetic segment in the nanowire and the ferromagnetic electrodes. The electrical properties of multisegmented nanowires showed semiconducting behavior with the activation energy of ca. 0.27 eV for the conducting polymer segment of the nanowire. These nanowire devices showed response towards light and exposure to ammonia, demonstrating their potential use as photonic device and gas sensor, respectively.

引用

页码：61 / 67

页数：7

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