Dielectric and pyroelectric properties of Sr-modified (Na0.5Bi0.5) Bi4Ti4O15 ceramics

Improved electrical properties in La- and V-co-doped Na0.5Bi4.5Ti4O15 thin films

“…Also BLSFs are environmentfriendly ferroelectric materials. BLSFs [3], indicating that ferroelectric properties of NBT may be better than of other BLSFs with m = 4. However, our previous study showed that NBT thin film grown on Pt(111)/Ti/SiO 2 /Si(100) substrates using a chemical solution deposition method exhibited poor ferroelectric properties [4].…”

“…The effects of La-and V-codoping on ferroelectric properties were investigated. 3 ] were used as starting materials for Na, Bi, La, Ti, and V, respectively. 2-Methoxyethanol (2-MOE) and acetic acid were used as a solvent and a catalyst, respectively.…”

High performance Aurivillius type Na0.5Bi4.5Ti4O15 piezoelectric ceramics with neodymium and cerium modification

“…The mechanical quality factor Q m and the planar electromechanical coupling coefficient k p of the samples were determined by means of resonant (f r ) and anti-resonant (f a ) frequencies using an impedance analyzer (Agilent 4294A, Agilent Technology Inc., Santa Clara, CA, USA). [10,12,21,22]. It can be seen that all the ceramics are only a bismuth oxide layer-type structure with m = 4, and no secondary phases are observed in the range detected [10,12].…”

“…Table 1 also shows that the value of the orthorhombic distortion (b/a) decreases, but the tetragonal strain (c/a) increases because of the neodymium and cerium introduced. But the data of the crystal lattice b/a and c/a indicate that the NBT system retains the orthorhombic symmetry [21]. Moreover, the (Nd,Ce) modification induces the lattice distortion, the complex structure, which is supposed to lead to the enhanced polarizability [12,19,23].…”

Influence of annealing on the structure and ferroelectric properties of Sr0.13Na0.37Bi0.50TiO3 thin films prepared by metalorganic solution deposition

“…Sodium bismuth titanate (Na 0.5 Bi 0.5 TiO 3 , NBT) crystals and ceramics are an attractive candidate for lead-free electronic materials for their good piezoelectric and ferroelectric properties [1][2][3][4][5][6]. In recent years, there have been lots of researches focusing on NBT thin films.…”