New oxide phase with wide band gap and high electroconductivity, MgIn 2O4

Naoyuki Ueda, Takahisa Omata, Naoko Hikuma, Kazushige Ueda, Hiroshi Mizoguchi, Takuya Hashimoto, Hiroshi Kawazoe

Research output: Contribution to journalArticlepeer-review

116 Citations (Scopus)

Abstract

It was demonstrated that the MgIn2O4 spinel is a very promising material as a transparent electronic conductor. By the measurements of diffuse reflectance spectra, the optical band gap of MgIn2O 4 (∼3.4 eV) was found to be wider than that of ITO (indium tin oxide). Electrical conductivity of the sintered sample of MgIn2O 4 at room temperature has reached almost 102 S cm -1 with no intentional doping. The conduction was found to be due to electrons introduced from oxygen vacancies.

Original languageEnglish
Pages (from-to)1954-1955
Number of pages2
JournalApplied Physics Letters
Volume61
Issue number16
DOIs
Publication statusPublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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