A Single Palladium Nanowire Via Electrophoresis Deposition Used as a Ultrasensitive Hydrogen Sensor

被引：21

作者：

Hu, Yushi ^{[1
]}

Perello, David ^{[1
]}

Mushtaq, Usman

Yun, Minhee ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA

来源：

IEEE TRANSACTIONS ON NANOTECHNOLOGY | 2008年 / 7卷 / 06期

基金：

美国国家科学基金会;

关键词：

Electrophoresis deposition; hydrogen sensor; single nanowire; palladium (Pd);

D O I：

10.1109/TNANO.2008.2005978

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have successfully fabricated and demonstrated the use of a single metallic nanowire as a hydrogen sensor with extremely high sensitivity via a very simple fabrication process. In this paper, single palladium (Pd) nanowires were electrodeposited within 100-nm-wide polymethylmethacrylate nanochannels using a Pd electrolyte solution. Via this method, nanowires were grown with widths ranging from 50 to 100 run, and lengths from 3 to 7 mu m. The nanowires were successfully used to sense hydrogen concentrations as low as 5 ppm at room temperature. The growth control of single I'd nanowires, as well as the primary sensing mechanism, is addressed in detail in this paper.

引用

页码：693 / 699

页数：7

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