Bipolar Electric Field Induced Strain in Li Substituted Lead-Free Bi_0.5(Na_0.82K_0.18)_0.5Ti_0.95Sn_0.05O₃ Piezoelectric Ceramics

Influence of Crystallization Temperature on Structural, Ferroelectric, and Ferromagnetic Properties of Lead-Free Bi0.5(Na0.8K0.2)0.5TiO3 Multiferroic Films

“…All films are well crystallized corresponding to the single-phase perovskite structure, and no other impurity phases are detected [19,20]. BNKT films in this study possess the optimal composition near the MPB evidenced by the coexisting of rhombohedral and tetragonal phases [21]. With the highest intensity, the (111) orientation is the mixture of orientations as a consequence of the Ptcoated substrate.…”

Influence of Crystallization Time on Energy-Storage Density and Efficiency of Lead-Free Bi0.5(Na0.8K0.2)0.5TiO3 Thin Films

“…Figure 2(a) displays the XRD patterns of the BNKT films associated with the conditions of annealed at 700 ∘ C for different durations. The angular peak positions of the XRD signals are observed at around 2 : 31.2 ∘ , 39.8 ∘ , 47.3 ∘ , and 58.0 ∘ corresponding to the BNKT bulk [24]. With the surpassed intensity, the (111) orientation located at 2 ∼ 39.8 ∘ is the mixture of orientations, deriving from the Pt coated substrate.…”

“…NBT films [23] synthesized on LNO/Si (100) substrates by using a sol-gel technique show the excellent energy-storage properties with the reco of 12.4 J/cm 3 and of 43% at 1200 kV/cm. Zhang et al [24] markedly enhanced the energy-storage properties of 0.7NBT-0.3ST relaxor films by the Mn 2+ substitution for Ti 4+ . With appropriate Mn doping (1mol.…”

Inorganic dielectric materials for energy storage applications: a review

“…For example, the technique of co-doping at the A and B site of perovskite structure of BNKT ceramics with dopants such as Ta [253], Nb [254], Zr [255], Hf [256], Mn [257], Li [258], and La [259], etc reported improved piezoelectric and energy storage applications [72,[260][261][262]. Details of co-doped ferroelectric BNT-systems are also reported elsewhere [72,[260][261][262][263][264][265][266][267]. Similarly, the co-doped system of 0.96[{Bi 0.5 (Na 0.84 K 0.16 )} 1−x−y Li x Mg y (Ti 1−z Nb z ) 3 ] -0.04SrTiO 3 reported enhanced energy storage performance in a temperature range of 100 • C-150 • C, with an energy storage density of 0.70 J cm −3 at an electric field of 5.5 kV mm −1 [260].…”