• R Manoj

      Articles written in Bulletin of Materials Science

    • Effect of oxygen intercalation on properties of sputtered CuYO2 for potential use as 𝑝-type transparent conducting films

      R Manoj M Nisha K A Vanaja M K Jayaraj

      More Details Abstract Fulltext PDF

      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-1 on intercalation of oxygen at high pressure, which reduced the transparency in the visible region. The Ca-doped CuYO2 films 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 CuYO2 was found to be 3.15 eV.

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      Posted on July 25, 2019

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