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Magnetically Assembled Multisegmented Nanowires and Their Applications
- Authors
- Bangar, Mangesh A.; Hangarter, Carlos M.; Yoo, Bongyoung; Rheem, Youngwoo; Chen, Wilfred; Mulchandani, Ashok; Myung, Nosang V.
- Issue Date
- Jan-2009
- Publisher
- Wiley - V C H Verlag GmbbH & Co.
- Keywords
- Anodized alumina; Electrodeposition; Nanowires; Polypyrrole; Photonic devices; Ammonia; Gas sensor
- Citation
- Electroanalysis, v.21, no.1, pp.61 - 67
- Indexed
- SCIE
SCOPUS
- Journal Title
- Electroanalysis
- Volume
- 21
- Number
- 1
- Start Page
- 61
- End Page
- 67
- ISSN
- 1040-0397
- Abstract
- 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.
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Related Researcher
- Yoo, Bong young
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)