The trade-off relationship of the polarization and the breakdown strength severely limits the enhancement of energy-storage properties of dielectric materials. In this work, Pb-free 0.92BaTiO3–0.08Bi(Mg1/2Zr1/2)O3 (0.92BT-0.08BMZ) thin films are synthesized via a sol–gel method, in which the coexisting state of an amorphous phase and a crystalline phase …
The energy storage density of ferroelectric capacitors is mainly determined by their polarization and breakdown strength. In this work, the energy storage performance of BNT thin films was enhanced by introducing an amorphous alumina to construct Al 2 O 3-Bi 0.5 Na 0.5 TiO 3 (AO-BNT) heterojunctions by sol-gel process. The results reveal that the Bi 0.5 Na …
The energy storage efficiency increases from 56.8% to 74.1%, while a high energy density of ∼20 J/cm3 is maintained under an electric field of 1200 kV/cm. Additionally, the operating frequencies ...
In the field of stored energy materials, lead-free amorphous thin films have the advantages of high breakdown strength, excellent stability, environmental protection and pollution-free, and are a very competitive energy storage material.However, the difficulty of simultaneous optimization of polarization and breakdown strength has always been a difficulty in improving …
By controlling the annealing temperature of the amorphous-crystalline coexisted films, the effect of crystallinity on the energy storage performance was …
The results show that the energy storage density of amorphous thin film is much higher than of that of polycrystalline structure. Finally, outstanding energy storage properties with ultrahigh density 53.9 J/cm 3 and high efficiency of 77.2% is obtained in amorphous ST thin films. 2. Experiments
Finally, the optimized energy-storage performance is achieved in 0.92BT-0.08BMZ thin films annealed at 600 °C, with a large energy density of 55.2 J/cm 3 and a high energy efficiency of 83.6%, demonstrating the great …
DOI: 10.1016/j.ceramint.2023.08.170 Corpus ID: 260988375; Ultra-high energy storage density BaTiO3 amorphous thin film via multi-ion synergistic optimization @article{Zhang2023UltrahighES, title={Ultra-high energy storage density BaTiO3 amorphous thin film via multi-ion synergistic optimization}, author={Jian Zhang and Rui Huang and Cheng …
(a) P-E loops of BZT films at different annealing temperatures under maximum electric field; (b) Energy storage density and efficiency; (c) Recoverable energy storage density and BDS of the BZT film annealed at 700 °C compared with …
Eco-friendly dielectric thin-film capacitors with high-performance energy-storage properties have been widely used in modern electronic devices. Herein, lead-free BaZr 0.25 Ti 0.75 O 3 thin films were fabricated using the sol-gel spin-coating method. The phase evolution from amorphous to pyrochlore to perovskite crystalline, driven by increasing the annealing …
DOI: 10.1016/j.nanoen.2024.109271 Corpus ID: 266907710; Ultra-thin Multilayer Films for Enhanced Energy Storage Performance @article{Zhang2024UltrathinMF, title={Ultra-thin Multilayer Films for Enhanced Energy Storage Performance}, author={Xin Zhang and Liang Shu and Ziqi Yang and Lisha Liu and Fangyuan Zhu and Hongliang Wang and Yue-Yu-Shan …
A large energy storage density of 37.1 J cm −3 with a high efficiency of 91.5 % was achieved in Ba 2 Bi 4 Ti 5 O 18 thin films, while an energy storage density of 17.2 J cm-3 and an efficiency of 80.8 % was achieved in Sr 2 Bi 4 Ti 5 O 18 thin films; this difference can be ascribed to the higher polarization in the Ba 2 Bi 4 Ti 5 O 18 films ...
Ba 0.3 Sr 0.7 TiO 3 amorphous films with energy storage density of 31.6 J cm -3 and BDS of 3.0 MV cm -1 were obtained by adjusting annealing temperature at 700°C [23]; Xie et al. changed the Ti ...
Many high permittivity crystalline dielectric thin films have a low breakdown strength, which is unfavorable for dielectric energy storage devices. In contrast, many amorphous linear dielectrics have much lower permittivities but larger breakdown strengths. Here, composite thin films with nanocrystalline particles in an amorphous matrix were …
Li2TiO3 (LTO) is a promising Ti-based material showing interesting electrochemical performance, good structural stability, cost-effectiveness, and non-toxic electrode material for energy storage and conversion. In this work, thin films of LTO have been deposited by the pulsed laser deposition (PLD) technique on Au/Ti/SiO2/textured Si multilayer substrates maintained at …
The crystallinity of sol-gel BZT thin films annealed at different temperatures was analysed using XRD Theta/2Theta scanning, as shown in Fig. 1.At annealing temperatures below 600 °C, the films are mainly amorphous phase due to the presence of a wide dispersion peak in the range of 2Theta around 23–31° (see more in Fig. S1).At the annealing temperature of 600 …
a relatively small energy storage density, while batteries are responsible for maintaining a high energy storage density for the system.6) One approach to the optimization of energy storage devices used in electronic systems is to increase the energy storage density of dielectric capacitive materials.
Pure perovskite Bi(Mg 0.5 Ti x)O 3 (abbreviated as BMT x) thin films are successfully fabricated on Pt/Ti/SiO 2 /Si substrates by a sol–gel method, where the excess TiO 2 with an amorphous structure is designed to improve the energy storage performance. The dielectric breakdown strength is found to be abruptly improved for the sample with x ≥ 0.65 due to the synergistic …
Semantic Scholar extracted view of "Amorphous/Crystalline Engineering of BaTiO3-Based Thin Films for Energy-Storage Capacitors" by Dongxu Li et al. ... A new strategy to optimize the energy storage performance of the amorphous Sr0.925Bi0.05TiO3-based thin films by regulating the BiMg0.5Ti0.5O3 concentration.
Thin film capacitors with large energy storage density and high breakdown strength are widely used in modern electronic fields. To solve the problems of interface effect and different polarization mechanism between matrix and fillers in conventional heterogeneous structure composite thin film capacitors, a new-type inorganic microcrystal-amorphous …
Request PDF | Ultrahigh energy storage and electrocaloric performance achieved in SrTiO 3 amorphous thin films via polar cluster engineering | Lead-free film dielectric capacitors with fast charge ...
The introduction of excess TiO 2 with an amorphous structure contributes to the ... Especially in the 1.5% Mn-BMT 0.7 film capacitor, an ultrahigh energy storage density of 124 J cm-3 and an ... cycles) fatigue properties. This work is expected to pave the way for the application of BMT-based thin film capacitors in flexible energy storage ...
Here, we present an effective method to achieve high energy storage performance, which is embedding the crystalline polar clusters in amorphous thin films. The large energy density of 65.3 J cm-3 ...
Structure and electric properties of sandwich-structured SrTiO 3 /BiFeO 3 thin films for energy storage applications. J. Alloy. Compd., 781 (2019), pp. 378-384. View PDF View article View in Scopus Google Scholar ... Enhanced energy storage properties of amorphous BiFeO 3 /Al 2 O 3 multilayers. J. Mater. Res. Technol., 11 (2021), pp. 1852-1858.
The formation of compositionally graded thin film structure to obtain high energy storage performance will lay far-reaching impact on the sustainable energy and promote the development of BST ...
Peng, B. et al. Large energy storage density and high thermal stability in a highly textured (111)-oriented Pb 0.8 Ba 0.2 ZrO 3 relaxor thin film with the coexistence of …
DOI: 10.1016/j.cej.2021.133447 Corpus ID: 243835976; Superior energy storage BaTiO3-based amorphous dielectric film with polymorphic hexagonal and cubic nanostructures @article{Jiang2021SuperiorES, title={Superior energy storage BaTiO3-based amorphous dielectric film with polymorphic hexagonal and cubic nanostructures}, author={Xuewen Jiang …
The energy storage density of ferroelectric thin film capacitors is mainly limited by the breakdown strength. Here we demonstrate that the high breakdown strength and high energy storage density can be achieved by constructing BiFeO 3 /Al 2 O 3 ferroelectricity-insulators heterojunction. The breakdown strength, leakage current density and energy …
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