Fabrication of high-density electron-doped 12CaO・7Al_2O_3 thin films by physical and chemical processes(The 62th CerSJ Awards for Academic Achievement in Ceramic Science and Technology: Review,<Feature>Aqueous Solution Science for Ceramic Processing II)

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概要

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• 12CaO・7Al_2O_3 (C12A7) crystal is a constituent of alumina cements and an electrical insulator having a wide bandgap of 〜7eV. When high-density electrons were doped into C12A7 by replacing the O^<2-> ions in its crystallographic cages with electrons almost exclusively (C12A7:e^-), they exhibited metallic conduction with a small work function of 〜2.4eV, making the C12A7:e^- attractive for use in electronic devices. This article focuses on comparing two fabrication methods for the C12A7:e^- thin films: ion implantation of inert gas ions and a reduction reaction using an oxygen deficient amorphous C12A7 layer. Further, their respective electrical and optical properties are discussed.

• 社団法人日本セラミックス協会の論文
• 2009-03-01

著者

• MIYAKAWA Masashi

  Frontier Research Center, Tokyo Institute of Technology

• Miyakawa Masashi

  Frontier Research Center Tokyo Institute Of Technology

• Miyakawa Masashi

  Frontier Collaborative Research Center Tokyo Institute Of Technology

関連論文

• Fabrication of Flat MgO(111) Films on Al_2O_3(0001) Substrates by Pulsed Laser Deposition
• Superconducting Transition in Electron-Doped 12CaO・7Al_2O_3
• Observation of Magneto-photocurrent Effect at Low Temperature in Polymer Solar Cell(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Fabrication of high-density electron-doped 12CaO・7Al_2O_3 thin films by physical and chemical processes(The 62th CerSJ Awards for Academic Achievement in Ceramic Science and Technology: Review,Aqueous Solution Science for Ceramic Processing II)

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