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Fabrication and properties of epitaxial growth BiScO3PbTiO3 thin film via a hydrothermal method

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6 Author(s)
Zhong, C.F. ; State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China ; Wang, X.H. ; Wen, H. ; Li, L.T.
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BiScO3PbTiO3 thin film was hydrothermally deposited on Nb-doped SrTiO3 [100] single crystal substrate at 180 °C with a large thickness of 3.1 μm. The x-ray diffraction and high resolution transmission electron microscopy confirmed the epitaxial growth relationship between the BSPT thin film and Nb-STO substrate. Single-crystal-like polarization hysteresis loops were observed, with the remanent polarization of 30 μC/cm2. Piezoelectric force microscopy revealed a single +c domain structure of the film, while exceptional linear piezoelectric response was observed with the effective piezoelectric constant d33* of 65 pm/V. The temperature dependence of the effective d33* indicated that this film exhibited a high temperature stability.

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Applied Physics Letters  (Volume:92 ,  Issue: 22 )