Journal of Materiomics最新文献

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Synergistic effect of tri-doping with Mn, Ge, and Bi and thermoelectric enhancement of SnTe induced by grain boundary engineering and nanostructuring Mn、Ge和Bi三掺杂的协同效应与晶界工程和纳米结构诱导的SnTe热电增强
IF 9.4 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-13 DOI: 10.1016/j.jmat.2025.101119
Donghyun Shin, U.Sandhya Shenoy, Hyejeong Choi, Joseph Ngugi Kahiu, Eun-Ji Meang, Kwi-Il Park, Kwan-Ho Park, D.Krishna Bhat, Ho Seong Lee
{"title":"Synergistic effect of tri-doping with Mn, Ge, and Bi and thermoelectric enhancement of SnTe induced by grain boundary engineering and nanostructuring","authors":"Donghyun Shin, U.Sandhya Shenoy, Hyejeong Choi, Joseph Ngugi Kahiu, Eun-Ji Meang, Kwi-Il Park, Kwan-Ho Park, D.Krishna Bhat, Ho Seong Lee","doi":"10.1016/j.jmat.2025.101119","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101119","url":null,"abstract":"In this study, we propose grain boundary engineering and nanostructuring to enhance the thermoelectric performance of SnTe through tri-doping with Mn, Ge, and Bi. The synergistic effects on the band structure were analyzed through DFT calculations and validated through a series of doping experiments with each dopant. The nonstoichiometrically tri-doped sample exhibits a unique microstructure, characterized by Mn-Ge precipitates along the grain boundaries and coherently embedded nanostructures within the matrix. These microstructural features, combined with the effects of each dopant, synergistically enhanced the thermoelectric properties, yielding a maximum <em>zT</em> of 1.32 at 873 K. The thermoelectric generator exhibited a maximum output power of 661 μW at Δ<em>T</em> = 485 K, confirming its viability for mid-temperature thermoelectric applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"168 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144824877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Controlled doping and growth of SnSe thin films via pulsed laser deposition 脉冲激光沉积法控制SnSe薄膜的掺杂与生长
IF 9.6 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-13 DOI: 10.1016/j.jmat.2025.101121
Hang Yin , Hongyao Xie , Dezheng Gao , Shulin Bai , Jingying Shi , Ping Fu , Li-Dong Zhao , Can Li
{"title":"Controlled doping and growth of SnSe thin films via pulsed laser deposition","authors":"Hang Yin ,&nbsp;Hongyao Xie ,&nbsp;Dezheng Gao ,&nbsp;Shulin Bai ,&nbsp;Jingying Shi ,&nbsp;Ping Fu ,&nbsp;Li-Dong Zhao ,&nbsp;Can Li","doi":"10.1016/j.jmat.2025.101121","DOIUrl":"10.1016/j.jmat.2025.101121","url":null,"abstract":"<div><div>SnSe has received significant attention due to its exceptional optoelectronic and thermoelectric properties, making it a promising candidate for energy conversion applications. To exploit its potential for photo-thermoelectric applications, it is essential to prepare high-quality SnSe single-crystal films and investigate their intrinsic properties and local structure. In this work, pure and Na, Cu doped SnSe films were prepared <em>via</em> pulsed laser deposition (PLD). Orthorhombic SnSe films were successfully deposited along the [100] direction on SrTiO<sub>3</sub> substrates. Our results show that the growth mode of SnSe films transitions from island-by-layer to 3D island growth as the film thickness increases. Notably, SnSe doped with Na and Cu restores a flatter surface even at larger thicknesses, and the current output of the Na and Cu doped SnSe film under optical and thermal excitations exhibited a significant improvement compared to the individual photo-induced and thermal-induced, as well as the sum of both, highlighting its potential for integrated photoelectric-thermoelectric applications.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 6","pages":"Article 101121"},"PeriodicalIF":9.6,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144825337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uncovering charge transport dynamics and electrostatic storage origin for high-energy-density polymer films through configuration-tailored PDA@KNb3O8 fillers 通过配置定制PDA@KNb3O8填料揭示高能量密度聚合物薄膜的电荷传输动力学和静电存储起源
IF 9.4 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-13 DOI: 10.1016/j.jmat.2025.101120
Ziyue Wang, Jiajun Zhu, Jiyang Xie, Chengding Gu, Wanbiao Hu
{"title":"Uncovering charge transport dynamics and electrostatic storage origin for high-energy-density polymer films through configuration-tailored PDA@KNb3O8 fillers","authors":"Ziyue Wang, Jiajun Zhu, Jiyang Xie, Chengding Gu, Wanbiao Hu","doi":"10.1016/j.jmat.2025.101120","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101120","url":null,"abstract":"Tuning the structure-activity of fillers and matrix is crucial for designing polymer-based dielectric capacitors with high energy storage performance. Up to date, how the fillers’ structural characteristics (surface/interface configurations, dimensions, orientations <em>etc</em>.) contribute to the overall energy storage is far from unveiled. To this end, a combined filler-polymer dual-side design strategy is developed, which involves the DFT guidance for the electronic transport criteria for the designable synthesis of KNb<sub>3</sub>O<sub>8</sub> fillers. Four different structural configurations are constructed, which are surface-modified with polydopamine (PDA) to fabricate the final composite films, <em>i.e</em>. PDA@KNb<sub>3</sub>O<sub>8</sub>/PVDF-P(VDF-HFP)-PMMA with particular orientations and arrangements, through a well-controlled solution casting method. Comprehensive structural and electrical investigations reveal that 1D/2D-orientated PDA@KNb<sub>3</sub>O<sub>8</sub> fillers could obviously enhance the breakdown field and energy storage performance. The difference is that the 1D fillers more effectively improve the energy efficiency (up to 72%), while the 2D fillers more steadily achieve high energy density (<em>U</em><sub>e</sub>= 28.35 J/cm<sup>3</sup>) among the highest <em>U</em><sub>e</sub> reported for the composites. This work not only uncovers the structural origin of the electrostatic storage in inorganic-polymer composite films but also provides critical insights in designing high-energy-density film capacitors.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"14 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144839973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineering phase transition and ferroelectric properties in acceptor-doped HfO2/SrRuO3 thin-film heterostructures by a charge-balance synergistic strategy 基于电荷平衡协同策略掺杂HfO2/SrRuO3薄膜异质结构的工程相变和铁电性能
IF 9.6 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-12 DOI: 10.1016/j.jmat.2025.101122
Yuhao Yue , Xixiang Jing , Weijie Zheng , Jiufu Li , Chunyan Zheng , Xiaoli Fan , Kepeng Song , Tengfei Cao , Zheng Wen
{"title":"Engineering phase transition and ferroelectric properties in acceptor-doped HfO2/SrRuO3 thin-film heterostructures by a charge-balance synergistic strategy","authors":"Yuhao Yue ,&nbsp;Xixiang Jing ,&nbsp;Weijie Zheng ,&nbsp;Jiufu Li ,&nbsp;Chunyan Zheng ,&nbsp;Xiaoli Fan ,&nbsp;Kepeng Song ,&nbsp;Tengfei Cao ,&nbsp;Zheng Wen","doi":"10.1016/j.jmat.2025.101122","DOIUrl":"10.1016/j.jmat.2025.101122","url":null,"abstract":"<div><div>In HfO<sub>2</sub>, the stabilization of orthorhombic phase is crucial for hafnia-based ferroelectric devices. Here, we propose a charge-balance synergistic strategy to modulate phase transition and optimize ferroelectric properties in acceptor-doped HfO<sub>2</sub> thin-film heterostructures. Sm-doped HfO<sub>2</sub>/SrRuO<sub>3</sub> heterostructures are adopted as the platform, in which the acceptor <span><math><mrow><msubsup><mtext>Sm</mtext><mtext>Hf</mtext><mo>′</mo></msubsup></mrow></math></span> introduces extra holes into the HfO<sub>2</sub> controlled by doping concentration, while the SrRuO<sub>3</sub> electrode injects electrons depended on termination-controlled surface work function. Transition from monoclinic to orthorhombic and then to tetragonal phase is observed with increasing Sm concentration. The Sm-doping region for improved ferroelectricity is found to be depended on SrRuO<sub>3</sub> termination. These behaviors are ascribed to the charge-balance effect that combines the acceptor doping and the interface injection in the heterostructures. The holes in HfO<sub>2</sub> lattices are thus modulated to dominantly distribute on specific oxygen sublattices, lowering the relative energy between monoclinic and orthorhombic phases. We also extend the study into other acceptor-doped HfO<sub>2</sub>, such as La<sup>3+</sup> and Eu<sup>3+</sup>, and observe almost identical phase transition and ferroelectric behaviors. Our findings provide more physical insights into the stabilization of orthorhombic phase and open a new gateway for designing high-performance ferroelectric HfO<sub>2</sub> devices by harnessing both the electrode structures and the HfO<sub>2</sub>-based layers in heterostructure systems.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 6","pages":"Article 101122"},"PeriodicalIF":9.6,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144825336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Machine learning assisted τf value prediction of ABO3-type microwave dielectric ceramics 机器学习辅助abo3型微波介质陶瓷的τf值预测
IF 9.4 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-08 DOI: 10.1016/j.jmat.2025.101117
Mingyue Yang, Liangyu Mo, Jincheng Qin, Faqiang Zhang, Mingsheng Ma, Yongxiang Li, Zhifu Liu
{"title":"Machine learning assisted τf value prediction of ABO3-type microwave dielectric ceramics","authors":"Mingyue Yang, Liangyu Mo, Jincheng Qin, Faqiang Zhang, Mingsheng Ma, Yongxiang Li, Zhifu Liu","doi":"10.1016/j.jmat.2025.101117","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101117","url":null,"abstract":"The temperature coefficient of resonance frequency (<em>τ</em><sub>f</sub> or TCF) is the key parameter for evaluating temperature stability of microwave dielectric ceramics. In this work, a machine learning framework was proposed to predict the <em>τ</em><sub>f</sub> values of ABO<sub>3</sub>-type microwave dielectric ceramics. Leveraging a curated dataset of 104 single-phase ABO<sub>3</sub>-type compounds, we systematically evaluated models based on five machine learning algorithms using 31 structural descriptors as input features. The eXtreme Gradient Boosting (XGB) algorithm emerged as the optimal predictive model, demonstrating robust performance on the test set (<em>R</em><sup>2</sup> = 0.7799, RMSE = 15.7494×10<sup>–6</sup> °C<sup>–1</sup>). Consistent results on the validation set further confirmed its generalization capability. Critical features contributing to the model's performance include molecular dielectric polarizability (<em>pm</em>), tolerance factor (<em>tt</em>), ionic volume (<em>Vi</em>) and relative molecular mass (<em>m</em>). Structure-property relationship studies revealed that the <em>pm</em> plays an important role in modulating the <em>τ</em><sub>f</sub> value by affecting the permittivity. Quantitative thresholds for these critical descriptors were also derived for identifying materials with near-zero <em>τ</em><sub>f</sub>. This work provides an effective data-driven approach for accelerating the discovery of microwave dielectric ceramics with good temperature stability.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"106 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144797432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Data-augmented machine learning models for oxynitride glasses via Wasserstein generative adversarial network with gradient penalty and content constraint 基于梯度惩罚和内容约束的Wasserstein生成对抗网络的氮化氧玻璃数据增强机器学习模型
IF 9.4 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-08 DOI: 10.1016/j.jmat.2025.101111
Jing Tian, Yuan Li, Min Guan, Jijie Zheng, Jingyuan Chu, Yong Liu, Gaorong Han
{"title":"Data-augmented machine learning models for oxynitride glasses via Wasserstein generative adversarial network with gradient penalty and content constraint","authors":"Jing Tian, Yuan Li, Min Guan, Jijie Zheng, Jingyuan Chu, Yong Liu, Gaorong Han","doi":"10.1016/j.jmat.2025.101111","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101111","url":null,"abstract":"Data-driven machine learning methods have been proven highly successful in predicting glass properties, but hampered when dealing with small datasets, such as oxynitride glasses with excellent mechanical properties and chemical stability. Here, a data augmentation method based on the Wasserstein Generative Adversarial Network with Gradient Penalty (GP) and Content Constraint Penalty (CP) terms, a generative deep-learning model <em>via</em> the adversarial training of a generator and a discriminator, was established, in which the GP and CP terms ensure training stability and the physical rationality of the generated samples. The results indicate that the generated samples improve the performance of the oxynitride glass composition-property models trained with the XGBoost algorithm in terms of prediction accuracy and generalization capability. Furthermore, the augmented models outperform the general glass prediction model, GlassNet, over 101 experimental samples not included in the training datasets. Based on SHAP's single feature analysis and feature interaction analysis, the interpretability study further sheds light on the contributions of elements and the interactive effects of element pairs on the properties of oxynitride glasses. These achievements not only provide reliable models for the composition-property studies of oxynitride glasses but also offer a novel strategy for developing high-performance data-driven models under data scarcity scenarios.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"95 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144802944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of n-type Ti2CoNiSb2 double half-Heusler compound by the breaking of valence-balanced rule and achieving high thermoelectric performance via Bi/Cu co-doping 打破价平衡规律,通过Bi/Cu共掺杂制备n型Ti2CoNiSb2双半heusler化合物,获得高热电性能
IF 9.6 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-07 DOI: 10.1016/j.jmat.2025.101114
Rahidul Hasan , Seungki Jo , Seung Yong Lee , Yan Gu , Kyung Tae Kim , Dong Won Chun , Sang-il Kim , Hyun-Sik Kim , Kyu Hyoung Lee
{"title":"Development of n-type Ti2CoNiSb2 double half-Heusler compound by the breaking of valence-balanced rule and achieving high thermoelectric performance via Bi/Cu co-doping","authors":"Rahidul Hasan ,&nbsp;Seungki Jo ,&nbsp;Seung Yong Lee ,&nbsp;Yan Gu ,&nbsp;Kyung Tae Kim ,&nbsp;Dong Won Chun ,&nbsp;Sang-il Kim ,&nbsp;Hyun-Sik Kim ,&nbsp;Kyu Hyoung Lee","doi":"10.1016/j.jmat.2025.101114","DOIUrl":"10.1016/j.jmat.2025.101114","url":null,"abstract":"<div><div>Half-Heusler (HH) thermoelectric materials exhibit excellent electronic transport properties but suffer from intrinsically high lattice thermal conductivity, which limits their thermoelectric performance. To address this challenge, double half-Heusler (DHH) compounds with 18 valence electrons have recently been proposed. However, the disordered nature of DHH phases often degrades their electronic transport properties, hindering the achievement of high thermoelectric conversion efficiency. In this work, we design a new n-type Ti<sub>2</sub>CoNiSb<sub>2</sub> DHH compound with 18.5 valence electrons by combining TiCoSb and TiNiSb half-Heuslers, intentionally breaking the conventional valence balance. Furthermore, the effects of Cu and Bi doping at the Ni and Sb sites, respectively, are systematically investigated. Cu doping effectively enhances phonon scattering through point defects, while Bi doping significantly improves the weighted mobility. When Cu and Bi are co-doped, phonon scattering is further strengthened, particularly at high temperatures, and the weighted mobility is simultaneously increased. As a result, a peak figure of merit (<em>zT</em>) of ∼0.82 is achieved at 973 K in Ti<sub>2</sub>CoNi<sub>0.9</sub>Cu<sub>0.1</sub>(Sb<sub>0.925</sub>Bi<sub>0.075</sub>)<sub>2</sub>, nearly four times higher than that of the pristine Ti<sub>2</sub>CoNiSb<sub>2</sub> (<em>zT</em> ∼0.22). This work highlights the effectiveness of co-doping strategies that simultaneously optimize thermal and electronic transport properties in DHH thermoelectric systems.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 6","pages":"Article 101114"},"PeriodicalIF":9.6,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144792289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Damage tolerance and cyclic stability of 3D-architected Al2O3/polymer composites 三维结构Al2O3/聚合物复合材料的损伤容限和循环稳定性
IF 9.4 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-06 DOI: 10.1016/j.jmat.2025.101112
Wanyu Li, Keqiang Zhang, Zijian Zhang, Yingjie Feng, Chunlei Wan
{"title":"Damage tolerance and cyclic stability of 3D-architected Al2O3/polymer composites","authors":"Wanyu Li, Keqiang Zhang, Zijian Zhang, Yingjie Feng, Chunlei Wan","doi":"10.1016/j.jmat.2025.101112","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101112","url":null,"abstract":"The inherent brittleness and unpredictable catastrophic fracture of ceramic materials significantly limit their reliability in engineering applications, necessitating innovative approaches to enhance energy absorption capacity and cyclic load tolerance for structural components. This study presents a novel strategy for fabricating high-strength and cyclically-stable Al<sub>2</sub>O<sub>3</sub>/polymer composites through digital light processing (DLP) 3D printing of triply periodic minimal surface (TPMS) architectures combined with polymer infiltration. Mechanical characterization revealed exceptional quasi-static compressive strength of (201.9 ± 13.2) MPa coupled with remarkable energy absorption capacity reaching (40.1 ± 0.8) MJ/m<sup>3</sup>. The synergistic combination of TPMS structural design and extrinsic polymer toughening mechanisms induced progressive failure patterns characterized by extensive crack deflection and controlled interfacial debonding. Notably, the architected composites demonstrated outstanding cyclic durability, sustaining over 100 cycles at 60% and 70% maximum stress levels while maintaining 73 cycles at 80% stress level. Mechanical analysis attributed this performance enhancement to the polymer matrix's dual role in stress redistribution and energy dissipation accumulation during cyclic loading. This bioinspired structural design paradigm effectively addresses traditional ceramics' brittleness limitations, demonstrating significant potential for engineering applications in extreme environments requiring damage tolerance and load cycling reliability.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"38 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144787515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intercalation strategy induced superior energy storage performance in Aurivillius Bi6Ti3FeAlO18 film under low and medium electric fields 在低电场和中电场条件下,嵌入策略诱导Aurivillius Bi6Ti3FeAlO18薄膜具有优异的储能性能
IF 9.4 1区 材料科学
Journal of Materiomics Pub Date : 2025-08-06 DOI: 10.1016/j.jmat.2025.101113
Quanlong Liu, Yanxia Zhang, Runjie Wang, Xiurong Feng, Lei Zhang, Yan Liu, Zhehong Tang, Fei Guo, Jieyu Chen, Yuchen Ye, Yunpeng Zhou
{"title":"Intercalation strategy induced superior energy storage performance in Aurivillius Bi6Ti3FeAlO18 film under low and medium electric fields","authors":"Quanlong Liu, Yanxia Zhang, Runjie Wang, Xiurong Feng, Lei Zhang, Yan Liu, Zhehong Tang, Fei Guo, Jieyu Chen, Yuchen Ye, Yunpeng Zhou","doi":"10.1016/j.jmat.2025.101113","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101113","url":null,"abstract":"A new type of lead-free dielectric film capacitor with high energy density and rapid charge-discharge performance under a low and medium applied electric field is essential for electrical and electronic systems. Herein, we propose an efficient and straightforward approach to enhance the energy storage performance of the Aurivillius Bi<sub>5</sub>Ti<sub>3</sub>FeO<sub>15</sub> film through intercalation strategy. The insertion of BiAlO<sub>3</sub> units, which have a weak domain-forming potential, into the Bi<sub>5</sub>Ti<sub>3</sub>FeO<sub>15</sub> matrix establishes an ergodic relaxor. This modification further increases the difference between the maximum polarization and the remanent polarization. Under 1500 kV/cm, the Bi<sub>6</sub>Ti<sub>3</sub>FeAlO<sub>18</sub> film exhibits an excellent energy storage density of 67.5 J/cm<sup>3</sup>, along with a high energy storage efficiency of 75.5%. This leads to an exceptionally high energy storage response coefficient, which surpasses those of most dielectric films. Furthermore, the Bi<sub>6</sub>Ti<sub>3</sub>FeAlO<sub>18</sub> film exhibits outstanding thermal stability within a temperature range of –30 °C to 150 °C, commendable frequency stability from 0.05 kHz to 20.00 kHz, and remarkable fatigue resistance after 1 × 10<sup>8</sup> cycles. This study investigates a potential lead-free material suitable for low-electric-field-driven capacitors and also lays a foundation for developing Aurivillius-type lead-free high-energy-storage applications at low and medium electric fields through intercalation strategy.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"9 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144787552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilization of oxygen content modulated Ru electrode to examine the interfacial redox chemistry of ferroelectric Hf0.5Zr0.5O2 利用氧含量调制Ru电极研究铁电材料Hf0.5Zr0.5O2的界面氧化还原化学
IF 9.6 1区 材料科学
Journal of Materiomics Pub Date : 2025-07-25 DOI: 10.1016/j.jmat.2025.101110
Kun Yang , Hyojun Choi , Ji Sang Ahn , Eun Ji Ju , Dong In Han , Se Hyun Kim , Ju Yong Park , Heejin Hong , Kwan Hyun Park , Jeong Hwan Han , Min Hyuk Park
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