| Autor: |
Pertti Hakonen, Shinya Uji, T. Shibayama, Katsuhiko Inagaki, Takeshi Toshima, M. Ahlskog, Taku Tsuneta, Satoshi Tanda, M. Paalanen |
| Rok vydání: |
2003 |
| Předmět: |
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| Zdroj: |
Current Applied Physics. 3:473-476 |
| ISSN: |
1567-1739 |
| DOI: |
10.1016/j.cap.2003.07.002 |
| Popis: |
We succeed in synthesizing NbSe 2 nanotubes along with nanofibers by chemical vapor transportation. They are stable crystalline systems and can be synthesized reproducibly in a nearly equilibrium reacting process. We have investigated these nanosize structures of NbSe 2 by transmission electron microscopy and electron diffraction. Both of the structures have a similar size of 100–200 nm in diameter. While nanotubes consist of rolled-up NbSe 2 layers, nanofibers are a pile of thin flat layers. We propose a mechanism of the formation of NbSe 2 nanotubes and nanofibers on the basis of deseleniditive transition from a NbSe 3 fiber-shaped crystal. We also measured electrical resistance of the nanofibers with conductive atomic force microscopy and demonstrated that the material show metallic behavior at room temperature. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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