(110)-Textured Ca-doped BiFeO 3 film on refined Pt(111) electrode layer on glass substrate at reduced temperature

Abstract Multiferroic and photovoltaic properties of polycrystalline Bi 0.85 Ca 0.15 FeO 3 (BCFO) film on refined Pt(111) electrode buffered glass substrate have been studied. Optimized Pt(111) electrode layer having large grain size and smooth morphology enables the development of highly (110)-textured BCFO film at a temperature as low as 450 °C. The prepared BCFO film has dense microstructure, fine grain size, and smooth surface morphology. Good ferroelectric properties with the remanent polarization (2 P r ) of 108 μC/cm 2 and electrical coercive field of 405 kV/cm are achieved. Improved ferromagnetic properties with magnetization of 9.2 emu/cm 3 and coercivity of 1250 Oe are also attained. Significant PV properties with open-circuit photovoltage of 0.49 V and the short-circuit photocurrent of 67.4 μA/cm 2 at illumination intensity of 228 mW/cm 2 are observed, which are comparable to BCFO ceramics or BFO epitaxial films.