Journal of Materiomics最新文献_第6页

Site preference of Ni in Pb(Fe1/2Nb1/2)O3 during additive compositional modification 添加剂成分改性过程中 Pb(Fe1/2Nb1/2)O3 中 Ni 的位点偏好

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-07-05 DOI: 10.1016/j.jmat.2024.06.004

Ahrom Ryu , Ji-Hun Park , Dong Won Jeon , Jae-Hyeon Cho , Haena Yim , Keun Hwa Chae , Seong H. Kim , Sahn Nahm , Sung Beom Cho , Wook Jo , Ji-Won Choi

{"title":"Site preference of Ni in Pb(Fe1/2Nb1/2)O3 during additive compositional modification","authors":"Ahrom Ryu , Ji-Hun Park , Dong Won Jeon , Jae-Hyeon Cho , Haena Yim , Keun Hwa Chae , Seong H. Kim , Sahn Nahm , Sung Beom Cho , Wook Jo , Ji-Won Choi","doi":"10.1016/j.jmat.2024.06.004","DOIUrl":"10.1016/j.jmat.2024.06.004","url":null,"abstract":"<div><div>Doping and substitution methods are predominantly employed in the synthesis of ceramics to achieve their desired functional properties. We studied the behavior of excessive dopants in addition to an existing stoichiometric composition using a high-throughput continuous compositional spread sputtering method. We paid attention to the possible formation of thermodynamically unstable phases by the addition of an excessive amount of dopants. We showed that even when dopants were added as an additive, they dissolved into the existing lattice due to the benefit of the entropy of mixing. Regardless of excessiveness, all added elements incorporated into the lattice, stabilized by the tolerance factor. We also demonstrated our findings exemplarily with lead iron niobate to induce magnetic properties alongside inherent ferroelectricity (MS = 10 emu/cm3, PS = 16 μC/cm2). We compare the results from CCS with those from the non-additive solid-state method, leading to a conclusion that the benefit from the entropy of mixing allows foreign elements to substitute for the elements initially residing in the lattice to a degree in compliance with the Goldschmidt tolerance factor. This observation was confirmed by a density functional theory calculation. We anticipate that our study could necessitate intensive research on achieving desired composition through industry-friendly processing.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 3","pages":"Article 100907"},"PeriodicalIF":8.4,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141714027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-phase ceramics based on multi-cation boride and carbide: Investigations at the nanoscale 基于多阳离子硼化物和碳化物的双相陶瓷：纳米级研究

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-26 DOI: 10.1016/j.jmat.2024.06.002

Steven M. Smith II , Nicola Gilli , William G. Fahrenholtz , Gregory E. Hilmas , Sandra García-González , Emilio Jiménez-Piqué , Stefano Curtarolo , Laura Silvestroni

{"title":"Dual-phase ceramics based on multi-cation boride and carbide: Investigations at the nanoscale","authors":"Steven M. Smith II , Nicola Gilli , William G. Fahrenholtz , Gregory E. Hilmas , Sandra García-González , Emilio Jiménez-Piqué , Stefano Curtarolo , Laura Silvestroni","doi":"10.1016/j.jmat.2024.06.002","DOIUrl":"10.1016/j.jmat.2024.06.002","url":null,"abstract":"<div>A dual phase boride and carbide ceramic with the nominal composition (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)B2 and (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C was prepared by reactive synthesis and consolidated by spark plasma sintering. The resulting microstructure contained about 30% (in volume) boride and 70% carbide. Compositional inhomogeneities were observed within single grains that had core-shell structures and preferential accumulation of specific metals in the boride or carbide phases. Specifically, Ti and Nb had higher concentrations in the boride, whereas Hf and Ta in the carbide. The Zr concentration was relatively equally distributed in the two phases. The dual phase ceramic had additional, distinctive features including nanosized inclusions, possibly related to local miscibility gaps and supersaturation, linear defects, and strain due to adjustment of the crystal structure. As a consequence, the fracture mode was transgranular with the crack path deviated by these nanometric microstructure alterations. Nanoindentation under 5 mN measured higher hardness and modulus for the boride, 30 GPa and 525 GPa, as compared to the carbide phase, 22 GPa and 425 GPa, due to a higher concentration of dislocation tangles and strains deriving from the introduction of metals with different sizes (and properties) in a less compliant hexagonal lattice.</div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 1","pages":"Article 100905"},"PeriodicalIF":8.4,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S235284782400131X/pdfft?md5=9a5fd9e8c08dee82de25ed6db26a0d0b&pid=1-s2.0-S235284782400131X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142128522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Significantly enhanced electrocaloric effect by composition modulation in lead-free BaTiO3-based ceramics 无铅 BaTiO3 基陶瓷中的成分调控显著增强了电致发光效应

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-22 DOI: 10.1016/j.jmat.2024.05.011

Yingzhi Meng , Silin Tang , Zhaojie Wang , Xiang Niu , Hongfang Zhang , Dingyuan Wang , Yisong Bai , Biaolin Peng , Sheng-Guo Lu , Qingqing Ke , Laijun Liu

{"title":"Significantly enhanced electrocaloric effect by composition modulation in lead-free BaTiO3-based ceramics","authors":"Yingzhi Meng , Silin Tang , Zhaojie Wang , Xiang Niu , Hongfang Zhang , Dingyuan Wang , Yisong Bai , Biaolin Peng , Sheng-Guo Lu , Qingqing Ke , Laijun Liu","doi":"10.1016/j.jmat.2024.05.011","DOIUrl":"10.1016/j.jmat.2024.05.011","url":null,"abstract":"<div><div>The electrocaloric effect (ECE) offers a pathway to environmentally sustainable and easily miniaturized refrigeration technology, positioning it as a front-runner for the next generation of solid-state cooling solutions. This research unveils a remarkable ECE in a finely tuned (Ba0.86Ca0.14)0.98La0.02Ti0.92Sn0.08O3 ceramic, exhibiting a temperature shift (ΔT) of 1.6 K across more than 85% of the maximum ΔT (ΔTmax) and spanning an exceptionally wide operational range of 92 K. Our investigation on dielectric responses and ferroelectric polarization-electric field (P–E) loops suggests that the broad operational scope results from the fragmentation of extended ferroelectric domains into smaller domains and polar nano-regions (PNRs) supported by PFM analysis. Furthermore, the introduction of La enhances spontaneous polarization by significantly extending the maximum electric field that can be applied, facilitating high-performance ECE at ambient temperature. This study positions BaTiO3-based lead-free ceramic as a sustainable alternative for addressing the cooling demands of modern electronic components, marking a significant stride toward next-generation solid-state refrigeration.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 3","pages":"Article 100903"},"PeriodicalIF":8.4,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142536061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fundamentals and applications of millimeter-wave and terahertz programmable metasurfaces 毫米波和太赫兹可编程元表面的基本原理和应用

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-20 DOI: 10.1016/j.jmat.2024.06.001

Xiaojian Fu , Peng Wang , Yujie Liu , Yuan Fu , Qingdong Cai , Yu Wang , Silei Yang , Tie Jun Cui

{"title":"Fundamentals and applications of millimeter-wave and terahertz programmable metasurfaces","authors":"Xiaojian Fu , Peng Wang , Yujie Liu , Yuan Fu , Qingdong Cai , Yu Wang , Silei Yang , Tie Jun Cui","doi":"10.1016/j.jmat.2024.06.001","DOIUrl":"10.1016/j.jmat.2024.06.001","url":null,"abstract":"<div>Millimeter-wave and terahertz frequency bands are receiving more and more attention due to their big potentials for widespread applications such as in high-speed communications and high-resolution imaging. Nevertheless, limited by the functional materials and devices in these bands, we face lots of challenges towards high efficiency, high precision, and multi-domain electromagnetic manipulations that are urgently required in the practical application scenarios. The emergence of metasurfaces, especially the digital coding metasurfaces and programmable metasurfaces, has provided powerful capabilities to control electromagnetic waves. Recently, with the progress of space-domain, time-domain, space-time-domain, and polarization-domain programmable metasurfaces, considerable new applications have been achieved, including new-architecture wireless communication transmitters, the integration of sensing and communications, simultaneous information and power transfers, and information encryption. Consequently, integrated multifunctional platforms based on metasurfaces are expected. In this review, the recent advances in millimeter-wave and terahertz programmable metasurfaces are thoroughly presented, including the design principles and methods, the applications in the next-generation wireless communication systems, the integrated sensing and communications, and other multifunctional systems.</div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 1","pages":"Article 100904"},"PeriodicalIF":8.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2352847824001308/pdfft?md5=d50df24d73dbf7b5d34035a85c24c714&pid=1-s2.0-S2352847824001308-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142128424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crafting very low frequency magnetoelectric antenna via piezoelectric and electromechanical synergic optimization strategy 通过压电和机电协同优化策略制作极低频磁电天线

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-13 DOI: 10.1016/j.jmat.2024.05.010

{"title":"Crafting very low frequency magnetoelectric antenna via piezoelectric and electromechanical synergic optimization strategy","authors":"","doi":"10.1016/j.jmat.2024.05.010","DOIUrl":"10.1016/j.jmat.2024.05.010","url":null,"abstract":"<div><div>A boom in exploration for marine geology and ocean resources has resulted in a huge demand for radio navigation or special environment communications, in turn spurring the rapid development of portable underwater wireless communication technology. State of the art acoustic communication methods used today are plagued by substantial transmission delays, multipath effects, and doppler frequency shifts, among other challenges, thus impeding the advancement of underwater wireless communication technology. Low-frequency electromagnetic transmission has proven to be a prospective solution for underwater communication, but the conventional electrical antennas is too large for portable underwater wireless communication. Emergent magnetoelectric (ME) antennas driven by piezoelectric materials have become a promising solution for miniaturizing very low frequency (VLF) communication systems. Here, a theoretical model between the radiation performance and piezoelectric material properties of the ME antenna was conducted. Guide by the theory analysis, Pb(In1/2Nb1/2)O3<img>Pb(Mn1/3Sb2/3)O3<img>Pb(Zr0.49Ti0.51)O3 (PIN-PMS-PZT) piezoelectric ceramic simultaneous with high d33 and Qm (d33 ∼ 401, Qm ∼ 1510) has been designed to enhance the magnetoelectric radiation of the VLF ME antenna. The PIN-PMS-PZT based ME antenna achieves a large converse magnetoelectric response 1.78 Gs⋅cm/V in EMR, which is almost doubled to commercial PZT based ME antenna. More importantly, a VLF communication system was built based on the VLF antenna, which successfully transmitted digital signals using Amplitude-Shift-Keying (ASK) modulation. It is believed that the presented work could provide a theoretical basis and feasible technical path for the employment of ME antennas in the future.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 3","pages":"Article 100900"},"PeriodicalIF":8.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141404413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Li-ion transport by creating continuous channels and improving the decomposition of lithium salts in composite polymer electrolytes 通过在复合聚合物电解质中创建连续通道和改善锂盐分解来增强锂离子传输

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-13 DOI: 10.1016/j.jmat.2024.05.007

{"title":"Enhancing Li-ion transport by creating continuous channels and improving the decomposition of lithium salts in composite polymer electrolytes","authors":"","doi":"10.1016/j.jmat.2024.05.007","DOIUrl":"10.1016/j.jmat.2024.05.007","url":null,"abstract":"<div><div>With the merits of both solid polymer electrolytes (SPEs) and inorganic ceramic electrolytes (ICEs), composite polymer electrolytes (CPEs) prepared by coupling polymer matrix with inorganic fillers are broadly utilized in solid lithium metal batteries (SLMBs). However, CPEs fabricated by a single filler with polymer matrix often exhibit unsatisfactory performance. Here, prepared by coupling poly (ethylene oxide) (PEO) matrix with a natural additive carboxymethyl cellulose lithium (CMC-Li) and an inorganic filler mineral hectorite (Ht), an efficient CPE is reported. Detailedly, CMC-Li is considered to act as a “bridge”, which connects the Ht nanosheets distributed in PEO, thus establishing continuous Li+ transmission channels. Ht with a nanolayers structure vividly acts as “bricks”, pave the way for ion transference. In addition, oxygen atoms in CMC-Li contribute to adequately dissociating lithium salts, hydrogen bonding generated by hydroxyl groups is propitious to anchor anions to increase the Li+ transference number. Under the synergistic effect brought by CMC-Li and Ht, the electrolyte membrane PEO-10%Ht-4%CMC-Li (PHCL, in mass fraction) displays a high Li+ transfer number (0.73) and exceptional Li+ conductivity at 25 °C (2.5 × 10−4 S/cm). Our work demonstrates a powerful mean to fabricate the efficient electrolyte membrane for SLMBs.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 3","pages":"Article 100897"},"PeriodicalIF":8.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unleashing the potential: SiOx@GNs composites for superior lithium-ion battery anodes 释放潜能：SiOx@GNs 复合材料用于制造优质锂离子电池阳极

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-13 DOI: 10.1016/j.jmat.2024.05.009

{"title":"Unleashing the potential: SiOx@GNs composites for superior lithium-ion battery anodes","authors":"","doi":"10.1016/j.jmat.2024.05.009","DOIUrl":"10.1016/j.jmat.2024.05.009","url":null,"abstract":"<div><div>SiOx is commonly used in lithium-ion batteries because of its capacity and affordability, but it has issues with volume expansion and conductivity. Synthetic methods are crucial for achieving the desired microstructure and material properties. This study introduces a new technique, fluidized bed granulation, to produce SiOx@GNs composites. These composites have a core-shell structure with SiOx particles coated in graphene sheets, and high-energy vibration is used to create a SiOx-Fe structure on the surface. The graphene coating prevents volume expansion and enhances electron transfer. Real-time confocal imaging shows the charging and discharging process. Experiment results show that the SiOx@GNs electrode has a lower expansion rate of 53.60% compared to 73.04% for the SiO electrode, indicating improved electrochemical properties with the graphene coating. After 100 cycles at 2 C, SiOx@GNs demonstrate a reversible capacity of 1265.8 mA⋅h⋅g−1 and discharge capability at 7 C with a capacity of 1050 mA⋅h⋅g−1. The battery retains 90.21% of its capacity after 500 cycles at 0.5 C, showing potential as a LIB anode alternative with a unique structure for different energy storage materials. Fluidized bed granulation can aid in scaling up the use of SiOx anodes in lithium-ion batteries.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 3","pages":""},"PeriodicalIF":8.4,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141396099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wide-field full-Stokes polarimetry for conical light based on all-dielectric metasurface 基于全介质元表面的锥形光宽场全斯托克斯偏振测量法

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-12 DOI: 10.1016/j.jmat.2024.05.008

{"title":"Wide-field full-Stokes polarimetry for conical light based on all-dielectric metasurface","authors":"","doi":"10.1016/j.jmat.2024.05.008","DOIUrl":"10.1016/j.jmat.2024.05.008","url":null,"abstract":"<div>Polarization camera based on CMOS sensor and nano wire-grid technology have found widespread applications in medical diagnostics, remote sensing and industrial inspection. However, the limited filtering properties of wire-grid polarizers and the small field-of-view provided by conventional microlens restrict the energy efficiency of these systems while also increasing their cost, size and weight. In this study, we propose an innovative approach that integrates focusing and splitting of polarization states into a single-layer all-dielectric metasurface. This metasurface enables full-Stokes polarization imaging for a wide field-of-view conical light. The design of the metasurface utilizes a phase compensation method to effectively focus orthogonal polarized conical light onto the central pixel of the CMOS sensor. Theoretical analysis demonstrates that this metasurface can accurately detect full-Stokes parameters within ±20° incident cone angles with an average efficiency reaching 83.0%. The angle can be extended to ±90° with an average efficiency exceeding 80%. We fabricated a three super-pixel metasurface prototype, and experimental measurements reveal its ability to efficiently focus and split three pairs of orthogonal polarization states under ±11° conical angle incidence with an average focusing efficiency of 68.1%. This study presents a promising solution for achieving wide field-of-view and high-efficiency polarization detection in integrated CMOS systems.</div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 1","pages":"Article 100898"},"PeriodicalIF":8.4,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2352847824001242/pdfft?md5=8dfbf588137986c6a7ecf64917ede476&pid=1-s2.0-S2352847824001242-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141400159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reply to comment on “Ferroelectric composite-based piezoelectric energy harvester for self-powered detection of obstructive sleep” by A. Tkach and O. Okhay 对 A. Tkach 和 O. Okhay 就 "基于铁电复合材料的压电能量收集器用于自供电检测阻塞性睡眠 "发表的评论的回复

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-08 DOI: 10.1016/j.jmat.2024.05.006

Swati Panda , Hyoju Shin , Sugato Hajra , Yumi Oh , Wonjeong Oh , Jeonghyeon Lee , P.M. Rajaitha , Basanta Kumar Panigrahi , Jyoti Shukla , Alok Kumar Sahu , Perumal Alagarsamy , Hoe Joon Kim

{"title":"Reply to comment on “Ferroelectric composite-based piezoelectric energy harvester for self-powered detection of obstructive sleep” by A. Tkach and O. Okhay","authors":"Swati Panda , Hyoju Shin , Sugato Hajra , Yumi Oh , Wonjeong Oh , Jeonghyeon Lee , P.M. Rajaitha , Basanta Kumar Panigrahi , Jyoti Shukla , Alok Kumar Sahu , Perumal Alagarsamy , Hoe Joon Kim","doi":"10.1016/j.jmat.2024.05.006","DOIUrl":"10.1016/j.jmat.2024.05.006","url":null,"abstract":"<div>In this contribution, we reply to comments made by Tkach et al. in our publication J. Materiomics 2023; 9:609. The main interest of our work is to synthesize a lead-free material, SrTi2O5 (STO), and then utilize it in the formation of composites and finally design the piezoelectric nanogenerator (PENG) for self-powered sensor applications. The authors have observed the presence of piezoelectric voltage and current output from the PENG. The authors humbly indicate that the PENG devices were poled using a DC poling setup as conditions mentioned in J. Materiomics 2023; 9:609 (Panda et al., 2023) [1]. The doping of STO into the PDMS increased from 2% to 20% (in mass). In this process, the piezoelectric output of the PENG device was observed to be highest for 15% (in mass) STO-PDMS composite. Besides, we agree with the comment raised by Tkach et al., and further we have addressed the issues in a step-by-step response as follows.</div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"10 5","pages":"Pages 1160-1164"},"PeriodicalIF":8.4,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2352847824001229/pdfft?md5=e5d48b38fd9c47a972acec1d1955286b&pid=1-s2.0-S2352847824001229-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced energy storage performance in Ag(Nb,Ta)O3 films via interface engineering 通过界面工程提高 Ag(Nb,Ta)O3 薄膜的储能性能

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2024-06-07 DOI: 10.1016/j.jmat.2024.05.005

{"title":"Enhanced energy storage performance in Ag(Nb,Ta)O3 films via interface engineering","authors":"","doi":"10.1016/j.jmat.2024.05.005","DOIUrl":"10.1016/j.jmat.2024.05.005","url":null,"abstract":"<div><div>Dielectric capacitors with ultrahigh power density and ultra-fast charge/discharge rate are highly desired in pulse power fields. Environmental-friendly AgNbO3 family have been actively studied for its large polarization and antiferroelectric nature, which greatly boost the electric energy storage performance. However, high-quality AgNbO3-based films are difficult to fabricate, leading to a low breakdown field Eb (<1.2 MV/cm) and consequently arising inferior energy storage performance. In this work, we propose an interface engineering strategy to mitigate the breakdown field issue. A Ag(Nb,Ta)O3/BaTiO3 bilayer film is proposed, where the BaTiO3 layer acts as a p-type semiconductor while Ag(Nb,Ta)O3 layer is n-type, together with the n-type LaNiO3 buffer layer on the substrate, forming an n-p-n heterostructure. The n-p-n heterostructure elevates the potential barriers for charge transport, greatly reducing the leakage current. An extremely large breakdown field Eb∼4.3 MV/cm is achieved, being the highest value up to date in the niobate system. A high recoverable energy density Wrec∼62.3 J/cm3 and a decent efficiency η∼72.3% are obtained, much superior to that of the Ag(Nb,Ta)O3 monolayer film (Wrec∼46.4 J/cm3 and η∼80.3% at Eb∼3.3 MV/cm). Our results indicate that interface engineering is an effective method to boost energy storage performance of dielectric film capacitors.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 2","pages":"Article 100895"},"PeriodicalIF":8.4,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141409793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0