New ultraviolet-transport electroconductive oxide, ZnGa2O 4 spinel

Takahisa Omata, Naoyuki Ueda, Kazushige Ueda, Hiroshi Kawazoe

Research output: Contribution to journalArticlepeer-review

220 Citations (Scopus)


ZnGa2O4 having the spinel structure was prepared, and optical and electrical properties of the material were measured. By the measurements of diffuse reflectance spectra, ZnGa2O4 was found to have a wider band gap (∼5 eV) than ITO (indium tin oxide). Electrical conductivity of the H2-annealed ceramic of ZnGa 2O4 was 3×101 S cm-1. Thus the ZnGa2O4 spinel was found to be a new UV-transparent electronic conductor.

Original languageEnglish
Pages (from-to)1077-1078
Number of pages2
JournalApplied Physics Letters
Issue number9
Publication statusPublished - 1994


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