Study of polycrystalline Ba1−x Ca x MoO4 films prepared by electrochemical technique

The polycrystalline Ba1−x Ca x MoO4 films were prepared directly on molybdenum substrates by electrochemical technique. The growing characteristics of the films were studied by scanning electron microscopy (SEM), x-ray diffraction (XRD), and energy dispersive x-ray analysis (EDRX) techniques, respectively. The SEM images show that the morphology of the Ba1−x Ca x MoO4 film is affected significantly by the composition of the films when the process parameters are preset. The XRD and EDRX analyses reveal that the compositions of the films are strongly controlled by the capability of bond between cation and anion, besides the cation concentration, temperature, and current density, in such situation.