Enhanced Electric-Field-Induced Strain at the Ferroelectric-Electrostrcitive Phase Boundary of Yttrium-Doped Bi0.5(Na0.82K0.18)0.5TiO3 Lead-Free Piezoelectric Ceramics

Band gap modification and ferroelectric properties of Bi0.5(Na,K)0.5TiO3-based by Li substitution

“…[9][10][11] However, other dopants such as Ta-, Y-, BiAlO 3 -, and co-doped (Li,Ta)-, were found to be decreased the ferroelectric properties result from phase transition from ferroelectric to paraelectric. [12][13][14][15] The effect of dopants on the ferroelectric properties of BNKT-based was strongly related to the tolerance factor (t), first introduced by Goldschmidt, that decreasing t in turn makes the ferroelectric order unstable resulting in phase transition from ferroelectric to paraelectric. 11,[15][16][17] In addition, Li et.…”