Diode r.f. sputtering of copper and copper oxide thin films and multilayers

P. Boher, P. Houdy, C. Schiller, L.J. IJzendoorn, van

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    Diode r.f. sputtering in oxygen-argon mixtures has been used to produce thin copper oxide films with a controlled amount of oxygen. The stoichiometry of the films was monitored in situ during the deposition by kinetic ellipsometry and was characterized ex situ by grazing X-ray reflection and Rutherford backscattering. Phases from copper to CuO were obtained with a good reproducibility by varying only the partial pressure of oxygen in the plasma. The reactivity of the films with silicon and float glass substrates was evaluated. Cu/CuO multilayers exhibited well-defined Bragg peaks at 1.54 Å. Kinetic ellipsometry trajectories and grazing X-ray reflectivities have been interpreted assuming sharp Cu---CuO interfaces and diffused CuO---Cu interfaces.
    Originele taal-2Engels
    Pagina's (van-tot)91-98
    Aantal pagina's8
    TijdschriftThin Solid Films
    Nummer van het tijdschrift1
    StatusGepubliceerd - 1989


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