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The paper presents the structural and ferroelectric results for Sr[Formula: see text]Ba x Bi 2 Nb 2 O 9 ([Formula: see text]; 0.85) thin films, which were obtained by using dip-coating. The solutions containing the desirable ions were prepared from the powders of the previous studied ceramic samples. The films were deposited at room temperature on Fluorine-doped Tin Oxide (FTO) substrates and submitted to a heat treatment for crystallization. The films were characterized by using scanning microscopy electronic, energy dispersive spectroscopy and ellipsometry. Hysteresis ferroelectric loops were obtained, at room temperature, by using a Sawyer-Tower circuit at several frequencies. A well-defined grain structure was observed for both compositions. The energy dispersive spectroscopy (EDS) measurements revealed the presence of the corresponding elements from the chemical composition of the ceramic systems. The band-gap energy was around 3.3[Formula: see text]eV for both samples. Typical hysteresis loops for normal and relaxor ferroelectrics were obtained for [Formula: see text] and 0.85, respectively.

Structural and ferroelectric properties of Sr1−xBaxBi2Nb2O9 thin films obtained by dip-coating

Structural and ferroelectric properties of Sr1−xBa_xBi₂Nb₂O₉ thin films obtained by dip-coating