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Transparent p-Type Conducting Oxides: Design and Fabrication of p-n Heterojunctions

  • Hiroshi Kawazoe, Hiroshi Yanagi, Kazushige Ueda and Hideo Hosono
Extract

Inorganic solids with wide bandgaps are usually classified as electrical insulators and are used in industry as insulators, dielectrics, and optical materials. Many metallic oxides have wide bandgaps because of the significant contribution of ionic character to the chemical bonds between metallic cations and oxide ions. Their ionic nature simultaneously suppresses the formation of easily ionizable shallow donors or acceptors and enhances the localization of electrons and positive holes. Thus it is understandable that interest in these wide-gap oxides as conductive materials has not been strong.

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MRS Bulletin
  • ISSN: 0883-7694
  • EISSN: 1938-1425
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