Fabrication and transport properties of 12CaO · 7Al 2O 3 (C12A7) electride nanowire

Y. Nishio, K. Nomura, M. Miyakawa, K. Hayashi, H. Yanagi, T. Kamiya, M. Hirano, H. Hosono

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10 Citations (Scopus)


Electron-doped 12CaO · 7Al 2O 3 (C12A7) nanowires (NWs) were fabricated by two approaches. First, spatially selective electron doping of C12A7 films was examined by using a chemical method specific to C12A7. However, the conductive NW was not formed due to diffusion of oxygen in the C12A7 films to the conductive area. Secondly, a combination of dry etching and electron doping was examined. NWs with conductivities ∼6 S/cm at 300 K were successfully fabricated by this method. The temperature dependence of the conductivity in the NWs exhibited almost degenerated conduction down to 5 K.

Original languageEnglish
Pages (from-to)2047-2051
Number of pages5
JournalPhysica Status Solidi (A) Applications and Materials Science
Issue number8
Publication statusPublished - Aug 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry


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