Thin films of polycrystalline(Ba_(1−x)Sr_(x))TiO_(3)(x=0.2 and 0.3)with Perovskite structure were prepared by a dip and dry technique on a platinum-coated silicon substrate.The good quality thin films with uniform mic...Thin films of polycrystalline(Ba_(1−x)Sr_(x))TiO_(3)(x=0.2 and 0.3)with Perovskite structure were prepared by a dip and dry technique on a platinum-coated silicon substrate.The good quality thin films with uniform microstructure and thickness were successfully produced by dip-coating techniques annealed at 730℃ for 1 h.The resulting thin film shows a well-developed dense polycrystalline structure with more uniform grain size distribution.The BST thin films were characterized for their structural,Raman spectroscopy,morphological properties,and complex impedance properties.The dielectric constant-frequency curve showed the good dielectric constant and loss dielectric loss with low-frequency dispersion.The BST 0.3 thin film reveals that the dielectric constant and dielectric loss at a frequency of 1 kHz were 578 and 0.02,respectively.The obtained results on dielectric properties can be analyzed in terms of the Maxwell-Wagner model.展开更多
文摘Thin films of polycrystalline(Ba_(1−x)Sr_(x))TiO_(3)(x=0.2 and 0.3)with Perovskite structure were prepared by a dip and dry technique on a platinum-coated silicon substrate.The good quality thin films with uniform microstructure and thickness were successfully produced by dip-coating techniques annealed at 730℃ for 1 h.The resulting thin film shows a well-developed dense polycrystalline structure with more uniform grain size distribution.The BST thin films were characterized for their structural,Raman spectroscopy,morphological properties,and complex impedance properties.The dielectric constant-frequency curve showed the good dielectric constant and loss dielectric loss with low-frequency dispersion.The BST 0.3 thin film reveals that the dielectric constant and dielectric loss at a frequency of 1 kHz were 578 and 0.02,respectively.The obtained results on dielectric properties can be analyzed in terms of the Maxwell-Wagner model.
