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.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)