Effects of electrodes on ferroelectric properties of PNZT films prepared by sol–gel method

Phase change and ferroelectric nature of microwave‐heated lead cobalt titanate nanoparticles prepared by sol‐gel method

“…Researchers will have variety of advantages over this technique such as low cost of sample preparation, good homogeneity of crystallites, good crystallinity, less power consumption, etc. Evidently, Zhao et al reported the effect of Au‐electrodes on the ferroelectric properties of Nb‐doped lead zirconate titanate (PNZT) film via sol‐gel technique. Yang et al studied the composition, microstructure, crystal structure, grain growth mechanisms, and ferroelectric properties of texture (K, Na) NbO 3 (KNN) by sol‐gel method.…”

“…From the Figure , it can be observed that there exists an inversely proportional relationship between the parameters “ D ” & ε . The similar kinds of observations were reported in the literature . Besides, the lattice constants ( a = b ) and “ c ” were calculated for tetragonal reflection planes (Co of 0.2, 0.4, & 0.6 contents) using a standard relation: 1/ d 2 = ( h 2 + k 2 )/ a 2 + l 2 / c 2 ), where “ d ” is the interplanar distance and ( hkl ) are the miller indices.…”

Chemical Solution Route for High‐Quality Multiferroic BiFeO3 Thin Films

“…[ 48,87,99,116 ] The improved fatigue property can be attributed to the decreased defects accumulation between the thin film and the oxide electrode. [ 117,118 ] The BF/LSM thin film and BF/LN thin film has a slightly polarization degradation of 21% and 23% after 1.2 × 10 8 switching cycles, respectively. On the contrary, the BF/SR thin film has a better fatigue resistance (3%).…”

Energy storage and thermodynamics of PNZST thick films with coexisting antiferroelectric and ferroelectric phases

“…Usually, the fatigue behaviors of AFE and FE films could be explained by the domain-wall pinning effect. 18 The pinned domains in the film cannot be reoriented and maintain the polarization in one orientation because of the oxygen ionic defects and charges trapped by the electrode. 31 Since oxygen vacancies are easier to accumulate on the metal surface than oxides, there are more domain walls pinned by Pt during the switching cycles, resulting in a faster decrease of P max and increase of P r On the other hand, more FE phase in PNZST/Pt film should be also responsible for the degeneration of polarization.…”

“…Pt film is often employed as the bottom electrodes of PZ‐based AFE/FE films due to both superior conductivity and high temperature resistance of oxidation 16,17 . Nevertheless, oxygen vacancies accumulate easily at the interface of Pt electrodes, deteriorating the polarization and fatigue resistance of PZ‐based films 18,19 . On the other hand, perovskite oxide electrodes, such as SrRuO 3 (SRO), Nb‐doped SrTiO 3 (NSTO), and LaNiO 3 (LNO), have acceptable electric resistivity and small lattice mismatch with PZ‐based films 10,20‐23 .…”