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Author

Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

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Facile Synthesis of Single Crystalline Metallic RuO2 Nanowires and Electromigration-Induced Transport Properties

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Title
Facile Synthesis of Single Crystalline Metallic RuO2 Nanowires and Electromigration-Induced Transport Properties
Author
Lee, YuminYe, Byeong-UkYu, Hak KiLee, Jong-LamKim, Myung HwaBaik, Jeong Min
Keywords
Amorphous layer; Atmospheric pressure chemical vapor deposition; Catalyst particles; Controlled growth; Diffusional effects; Electrical materials; Electrical resistivity; Facile synthesis; Heuristic model; High currents; Nanogaps; Pre-Treatment; Ruthenium dioxide; Single-crystalline; Supercooled liquids
Issue Date
201103
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v.115, no.11, pp.4611 - 4615
Abstract
We report a simple strategy to synthesize highly crystalline ruthenium dioxide (RuO2) nanowires by atmospheric pressure chemical vapor deposition in supercooled liquid nanodroplets without the use of catalyst particles. The nanowires are single crystals with no discernible amorphous layers or defects. The pretreatment of the substrate is found to be effective for the position controlled growth of the nanowires as small as 10 nm. The RuO2 nanowires have extremely low electrical resistivity of 62.5 +/- 8.8 mu Omega.cm and uniform electrical materials characteristics, regardless of size. By passing high current (>10(7) A/cm(2)) through the nanowires, very small nanogaps of less than 5 rim are produced, which can be explained by a heuristic model, in which electromigrative and surface diffusional effects are included.
URI
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DOI
http://dx.doi.org/10.1021/jp200426s
ISSN
1932-7447
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