Chengchao Jin، نويسنده , , Feifei Wang، نويسنده , , Chung Ming Leung، نويسنده , , Qirong Yao، نويسنده , , Yanxue Tang، نويسنده , , Tao Wang، نويسنده , , Wangzhou Shi *، نويسنده ,
Mn-doped Bi0.5Na0.5TiO3–BaTiO3 thin film with the composition around the morphotropic phase boundary was grown on Pt-electrodized Si substrate by pulsed laser deposition. Highly (1 0 0)-oriented film with pure perovskite structure was obtained through carefully controlling the growth conditions. Well-defined ferroelectric P–E loop was obtained with the average remnant polarization Pr and coercive field Ec of ∼11.3 μC/cm2 and ∼6.5 kV/mm, respectively. Polycrystalline structures and multidomain states were revealed by piezoresponse force microscopy and large local strain response was obtained with the normalized strain Smax/Emax up to 92 pm/V. The excellent global electrical properties make it quite promising in environmental-friendly ferroelectric and piezoelectric devices.
Lead-free thin film , Piezoelectric properties , Pulsed laser deposition , Ferroelectric properties