Transparent films of copper yttrium oxide doped with 2% calcium have been prepared by rf magnetron sputtering. The films show a conductivity of 8 Scm-1on intercalation of oxygen at high pressure, which reduced the transparency in the visible region. The Ca-doped CuYO2films before oxygen intercalation show an average transmission of about 60% which reduces to about 45% upon oxygen intercalation. The temperature dependence of the conductivity indicates semiconductor behaviour with low activation energy of 0-59 eV at room temperature. The positive sign of Seebeck coefficient (+274 μVK-1) confirms the p-type conductivity of the films. The optical bandgap of CuYO2was found to be 3·15 eV. © Indian Academy of Sciences.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
Jayaraj, M. K., Manoj, R., Nisha, M., & Vanaja, K. A. (2008). Effect of oxygen intercalation on properties of sputtered CuYO2 for potential use as p-type transparent conducting films. Bulletin of Materials Science, 31(1), 49 - 53. https://doi.org/10.1007/s12034-008-0009-1