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

doi:10.1002/pssa.200778901

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

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	2047-2051
Number of pages	5
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	205
Issue number	8
DOIs	https://doi.org/10.1002/pssa.200778901
Publication status	Published - Aug 2008
Externally published	Yes

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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10.1002/pssa.200778901

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abstract = "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.",

author = "Y. Nishio and K. Nomura and M. Miyakawa and K. Hayashi and H. Yanagi and T. Kamiya and M. Hirano and H. Hosono",

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T1 - Fabrication and transport properties of 12CaO · 7Al 2O 3 (C12A7) electride nanowire

AU - Nishio, Y.

AU - Nomura, K.

AU - Miyakawa, M.

AU - Hayashi, K.

AU - Yanagi, H.

AU - Kamiya, T.

AU - Hirano, M.

AU - Hosono, H.

PY - 2008/8

Y1 - 2008/8

N2 - 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.

AB - 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.

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

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