Journal of Materiomics最新文献_第2页

High quality CuInP2S6 single crystal for intrinsic electric property 高品质的CuInP2S6单晶具有本征电性能

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-04-18 DOI: 10.1016/j.jmat.2025.101067

Changjin Guo, Yu Tan, Jiajun Zhu, Jiyang Xie, Chengding Gu, Wanbiao Hu

{"title":"High quality CuInP2S6 single crystal for intrinsic electric property","authors":"Changjin Guo, Yu Tan, Jiajun Zhu, Jiyang Xie, Chengding Gu, Wanbiao Hu","doi":"10.1016/j.jmat.2025.101067","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101067","url":null,"abstract":"What is the nature of the electric (dielectric/ferroelectric) properties of CuInP2S6 (CIPS)? CIPS, considered an emerging two-dimensional (2D) ferroelectric, has been well explored in various properties and applications. However, the most important and fundamental nature, i.e. dielectric/ferroelectric property, has been controversial, because high-quality CIPS samples are grossly deficient. In this work, single crystal CIPS is successfully synthesized by the chemical vapour transport method, which presents “high quality” in terms of high purity, excellent crystallinity, uniform composition, and defect-free structure etc. that are confirmed through comprehensive characterization techniques. With performing high-quality single crystal, we fully uncover the intrinsic electric properties of CIPS through accurately identifying the atomic arrangement, electron configuration, magnetic, dielectric, and ferroelectric properties that should reach a consensus on such a disputed CIPS material. These findings serve as a pivotal benchmark for a comprehensive understanding of the inherent electric characteristics of CIPS, offering valuable insights for its future modifications and applications in various applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"17 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846596","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

Reduced coercive field and enhanced ferroelectric polarization of Hf0.5Zr0.5O2 film through electric-field-assisted rapid annealing 电场辅助快速退火使Hf0.5Zr0.5O2薄膜的矫顽力场减小，铁电极化增强

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-04-16 DOI: 10.1016/j.jmat.2025.101061

Jiachen Li, Weijin Pan, Zhengxu Zhu, Hansheng Zhu, Yuchen Wang, Shengchun Shen, Yuewei Yin, Xiaoguang Li

{"title":"Reduced coercive field and enhanced ferroelectric polarization of Hf0.5Zr0.5O2 film through electric-field-assisted rapid annealing","authors":"Jiachen Li, Weijin Pan, Zhengxu Zhu, Hansheng Zhu, Yuchen Wang, Shengchun Shen, Yuewei Yin, Xiaoguang Li","doi":"10.1016/j.jmat.2025.101061","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101061","url":null,"abstract":"Hafnium oxide–based ferroelectric materials emerged as promising candidates for constructing next-generation high-density memory devices due to their silicon compatibility. However, the high coercive field (Ec, typically exceeding 1.0 MV/cm) puts forward challenges to high operating voltage and limited endurance performance. To overcome these limitations, a strategy is utilized by applying an in-situ direct current electric field during rapid thermal process (RTP). This approach enables simultaneous reduction of coercive field and enhancement of ferroelectric polarization in Hf0.5Zr0.5O2 (HZO). Notably, a record-low Ec (∼0.79 MV/cm) is achieved among atomic layer deposition-grown Zr-doped HfO2 ferroelectric films, facilitating lower operation voltage, faster switching speed, and improved endurance characteristics. High-resolution transmission electron microscopy analysis reveals that the ferroelectric domains in samples through electric field assisted-RTP exhibit a relatively preferential out-of-plane orientation compared to normal RTP-treated samples, which is the underlying mechanism in reducing the coercive field and enhancing ferroelectric polarization. This study introduces a practical and effective method for optimizing the overall performance of HZO films, underscoring their potential for application in non-volatile memory technologies.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"2 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837305","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

A new catalytic merit for prediction catalytic potential of 2D materials in Li-O2 batteries: Theoretical investigation and experimental identification 预测二维材料在Li-O2电池中催化电位的新催化优点：理论研究和实验鉴定

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-04-16 DOI: 10.1016/j.jmat.2025.101060

Geng Cheng, Wenpei Li, Chengyan Liu, Jie Gao, Jun-Liang Chen, Jianhua Zhou, Xiaoyang Wang, Lei Miao

{"title":"A new catalytic merit for prediction catalytic potential of 2D materials in Li-O2 batteries: Theoretical investigation and experimental identification","authors":"Geng Cheng, Wenpei Li, Chengyan Liu, Jie Gao, Jun-Liang Chen, Jianhua Zhou, Xiaoyang Wang, Lei Miao","doi":"10.1016/j.jmat.2025.101060","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101060","url":null,"abstract":"Two-dimensional (2D) materials such as metal chalcogenides have great potential as cathode catalyst materials for lithium oxygen batteries (LOBs) due to their large specific surface area and stable chemical properties. However, thus far, due to the lack of theoretical prediction methods, huge load on catalytic synthesis and performance evaluation is concerned. Herein, we reported a theoretical method for 2D metal chalcogenides as catalysts for LOBs using first principles density functional theory (DFT) calculations. We extracted key parameters that affect the overpotential, including Li–X bond energy (X represents chalcogen elements) and catalyst lattice constant, and theoretically predicted the catalytic performance. The DFT calculation results indicate that MoS2 with appropriate Li–X bond energy and lattice constant has the lowest theoretical overpotential, and its cyclic stability should be higher than other materials under the same conditions. Significantly, we experimentally validated the theoretical predictions presented above. The experimental results shows that pure MoS2 with 2H phase can stably work for more than 220 cycles at a current density of 500 mA/g, and the actual overpotential is lower than other metal chalcogenides. This work provides a swift pathway to accelerate searching high performance catalytic in LOBs.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"22 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837272","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

Laser-driven composite ceramic enabling superhigh‐luminance white light 激光驱动复合陶瓷实现超高亮度白光

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-04-03 DOI: 10.1016/j.jmat.2025.101059

Rundong Tian, Tianliang Zhou, Rong-Jun Xie

{"title":"Laser-driven composite ceramic enabling superhigh‐luminance white light","authors":"Rundong Tian, Tianliang Zhou, Rong-Jun Xie","doi":"10.1016/j.jmat.2025.101059","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101059","url":null,"abstract":"Laser-remote activated phosphor (LARP) converted solid state lighting is now developing towards high power density and super-brightness, and phosphor ceramic converters with high efficiency, high thermal conductivity, acceptable transmittance and suitable spectra are thus required. Y3Al5O12:Ce (YAG:Ce)-based ceramics are promising color converters to produce white light with a color temperature of 6000 K for vehicle headlamps, but the brightness and luminous efficiency are not well optimized. In this work, two series of Al2O3-YAG:Ce and Al2O3-(Gd,Y)AG:Ce transparent ceramics were fabricated by vacuum sintering, and their microstructure, thermal and optical properties were controlled by changing the Ce3+ or Al2O3 content as well the thickness of the ceramics. Both Al2O3-Y2.925Al5O12:Ce0.0175 (AY0.0175) and Al2O3-(Gd0.1Y2.89)Al5O12:Ce0.01 (AGY) ceramics containing 70% (in mass) Al2O3 show a luminance saturation threshold of 30.3 W/mm2 and 38.4 W/mm2, enabling to produce white light with a color temperature of 6000 K, luminous flux of 1928 lm and 3101 lm, luminous efficiency of 135.0 lm/W and 161.1 lm/W when pumped by blue laser diodes, respectively. This work provides a solution to finely control the composition, microstructure, and optical properties of transparent ceramics for super-high brightness laser-driven solid-state lighting.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"23 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766600","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

In-situ transformation of a perovskite oxide from irregular particles into nanosheets for active and durable solid oxide fuel cell cathodes 钙钛矿氧化物从不规则颗粒原位转化为纳米片，用于活性和耐用的固体氧化物燃料电池阴极

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-04-02 DOI: 10.1016/j.jmat.2025.101058

Shuai Ma, Shengli Pang, Xudong He, Hao Lou, Kaijie Xu, Yaozheng Qian, Fang Yang, Yi Zhuang, Xuyao Luo, Lianxu Xu, Yifei Gao, Peijie Zhang, Qiangsheng Xiao, Chonglin Chen

{"title":"In-situ transformation of a perovskite oxide from irregular particles into nanosheets for active and durable solid oxide fuel cell cathodes","authors":"Shuai Ma, Shengli Pang, Xudong He, Hao Lou, Kaijie Xu, Yaozheng Qian, Fang Yang, Yi Zhuang, Xuyao Luo, Lianxu Xu, Yifei Gao, Peijie Zhang, Qiangsheng Xiao, Chonglin Chen","doi":"10.1016/j.jmat.2025.101058","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101058","url":null,"abstract":"Solid oxide fuel cells (SOFCs) are of paramount importance for developing green and sustainable energy systems. However, achieving stable nanoscale cathode catalysts under their typically high operating temperatures, normally exceeding 600 °C, remains a significant challenge. By introducing a small amount of RuCl3 into the cathode slurry, an in-situ transformation of the PrBaCo2O5+δ cathode catalyst can be induced from submicrometer-scale irregular particles into nanosheets during SOFC operation. These nanosheets feature a RuO2-modified surface layer, resulting in substantial improvements in both catalytic activity and operational durability. At 750 °C and 0.7 V, SOFCs employing conventional cathode catalysts exhibit a 6.1% degradation in power density over 110 hours, while those employing the nanosheet-structured catalysts achieve an 11.9% increase, ultimately stabilizing at a high-power density of 0.75 W/cm2. This work presents a simple and scalable strategy for constructing high-performance nanocatalysts and deepens our theoretical understanding of catalyst nanostructuring for SOFC applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"38 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758647","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

Regulating emission in Er doped silicate glass and fiber via coordination engineering 通过配位工程调节掺铒硅酸盐玻璃和光纤的发射

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-04-01 DOI: 10.1016/j.jmat.2025.101057

Yuqing Li, Yan Sun, Xin Wang, Fangling Jiang, Feimei Wang, Lu Deng, Xinyu Liu, Chunlei Yu, Lili Hu, Shubin Chen

{"title":"Regulating emission in Er doped silicate glass and fiber via coordination engineering","authors":"Yuqing Li, Yan Sun, Xin Wang, Fangling Jiang, Feimei Wang, Lu Deng, Xinyu Liu, Chunlei Yu, Lili Hu, Shubin Chen","doi":"10.1016/j.jmat.2025.101057","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101057","url":null,"abstract":"L-band Er doped fiber (EDF) laser sources are in great demand for extending communication bandwidth. However, the gain performance is limited by the low emission cross section (σe) of Er3+ at wavelengths longer than 1590 nm. In our study, we revealed the mechanism of regulating Er emission behavior in silicate glass, and provided a linear model to predict the σe of Er-doped silicate glass with R2=92.3%. The σe1600 was increased to 23.5×10‒22 cm2 through erbium coordination engineering. Results were elucidated using X-ray absorption fine structure (XAFS) spectra, molecular dynamics (MD) simulations and fluorescence. Furthermore, this work validates this model in Er doped silicate fibers and obtained >20 dB amplification in the range of 1585‒1625 nm. This coordination engineering shows significant potential in applications of Er-doped silicate glasses and fibers. It provides an attractive prospect for expanding communication bandwidth by efficiently manipulating the emission of erbium to cover long wavelength.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"25 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745683","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

Electrocaloric materials and applications based on multilayer ceramic capacitors 基于多层陶瓷电容器的电热材料及其应用

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2025-03-21 DOI: 10.1016/j.jmat.2025.101056

Li-Qian Cheng , Yongke Yan , Zhiping Wang , Zhengyu Li , Xiaotian Li

{"title":"Electrocaloric materials and applications based on multilayer ceramic capacitors","authors":"Li-Qian Cheng , Yongke Yan , Zhiping Wang , Zhengyu Li , Xiaotian Li","doi":"10.1016/j.jmat.2025.101056","DOIUrl":"10.1016/j.jmat.2025.101056","url":null,"abstract":"<div><div>The increasing demand for effective and environmentally compatible cooling technologies has driven significant interest in the development of solid–state cooling materials. Among these, the electrocaloric (EC) system is considered a promising solid–state cooling method, offering advantages over other cooling technologies, such as low environmental impact, cost–effectiveness, high energy efficiency, and compact device size. To fully harness the potential of EC materials, multilayer ceramic capacitors (MLCCs) have emerged as effective and appropriate structures for EC cooling applications. This article provides a comprehensive review of recent advancements and research trends in MLCC–based EC materials, including the fundamentals of the EC effect, the performance of MLCC–based EC materials, EC effect (ECE) measurement, multilayer geometric structure design, and cooling device design based on MLCCs. A comparison of different systems of EC materials, along with an exploration of microstructure improvement, was conducted based on recent studies. A special focus was placed on multilayer structure design for EC performance enhancement, followed by reviewing two types of EC cooling device designs. The review offers insights into the fabrication and characterization of MLCC–based EC materials, offering guidance for future developments in EC material research and practical applications.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 5","pages":"Article 101056"},"PeriodicalIF":8.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666757","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

Entropy-driven multi-scale enhancement of energy storage performance in (Bi0.5Na0.5)0.5Ba0.5TiO3 ceramics 熵驱动的（Bi0.5Na0.5）0.5Ba0.5TiO3陶瓷储能性能的多尺度增强

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2025-03-20 DOI: 10.1016/j.jmat.2025.101055

Yue Pan, Yu Zhang, Qinpeng Dong, Jiangping Huang, Xiuli Chen, Xu Li, Lian Deng, Huanfu Zhou

{"title":"Entropy-driven multi-scale enhancement of energy storage performance in (Bi0.5Na0.5)0.5Ba0.5TiO3 ceramics","authors":"Yue Pan, Yu Zhang, Qinpeng Dong, Jiangping Huang, Xiuli Chen, Xu Li, Lian Deng, Huanfu Zhou","doi":"10.1016/j.jmat.2025.101055","DOIUrl":"10.1016/j.jmat.2025.101055","url":null,"abstract":"<div><div>The dielectric ceramic capacitor serves as the core energy storage element in the pulsed power system. However, the inability to balance high energy storage density (Wrec) and energy storage efficiency (η) has become a technical challenge limiting the miniaturisation of pulsed power devices. This work proposes an entropy-driven strategy, through introducing Sr(Sc0.5Nb0.5)O3 (SSN) as an end-member, to modulate the phase structure and suppress interfacial polarization in the medium entropy matrix, (Bi0.5Na0.5)0.5Ba0.5TiO3 (BN50BT). The introduction of SSN endows BN50BT ceramics with a multiphase structure of P4mm and Pm<math><mrow><mover><mn>3</mn><mo>¯</mo></mover></mrow></math>m and successfully establishes a super-paraelectric (SPE) state at room temperature, improving the polarization response. Furthermore, the incorporation of SSN effectively suppresses interfacial polarization and enhances the Eb of the system. Thus, the 0.80 [(Bi0.5Na0.5)0.5Ba0.5TiO3]-0.20Sr(Sc0.5Nb0.5)O3 ceramics exhibit a decent Wrec of 6.24 J/cm3 and a high η of 89.02%, along with remarkable stabilities over a wide frequency range (5–150 Hz) and temperature range (25–140 °C). This work demonstrates that the entropy-driven construction of a multiphase-coexisting SPE state, along with suppressed interfacial polarization, represents a feasible approach to optimizing the energy storage properties of dielectric ceramics.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 5","pages":"Article 101055"},"PeriodicalIF":8.4,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666659","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

Gradient piezoelectric composites for ultrasonic transducer design and imaging applications 梯度压电复合材料用于超声换能器的设计和成像应用

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-03-14 DOI: 10.1016/j.jmat.2025.101049

Chenxue Hou, Zhaoxi Li, Chunlong Fei, Qibo Lin, Xiaofei Luo, Xiongwei Wei, Yiheng Yang, Qi Lu, Yi Quan, Guangzhi Dong, Zeyu Chen, Xiaozhou Lü, Weimin Bao, Yintang Yang

{"title":"Gradient piezoelectric composites for ultrasonic transducer design and imaging applications","authors":"Chenxue Hou, Zhaoxi Li, Chunlong Fei, Qibo Lin, Xiaofei Luo, Xiongwei Wei, Yiheng Yang, Qi Lu, Yi Quan, Guangzhi Dong, Zeyu Chen, Xiaozhou Lü, Weimin Bao, Yintang Yang","doi":"10.1016/j.jmat.2025.101049","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101049","url":null,"abstract":"Ultrasonic imaging technology has advanced rapidly, the escalating demand for imaging quality has driven the continuous development of ultrasonic transducers featuring high-performance. Among them, the crucial factors constraining the further enhancement of imaging quality are the frequency of the device and the intensity of the echo signal. Piezoelectric composites have become a hotspot for ultrasonic transducers and imaging applications due to their excellent properties. However, due to the limitations of the accuracy of the cutting process, the development of piezoelectric/polymer composites is often undermined by undesirable pseudo-vibrations, especially in high-frequency applications, which will significantly reduce energy conversion efficiency. In this study, a novel design method of 1-3 piezoelectric composites with gradient nanoparticle doped polymer is proposed to eliminate the undesired lateral vibrations. Based on the optimized composites, a high-performance composite ultrasonic transducer with a center frequency of 8.51 MHz is prepared. Compared with the traditional composite transducer, the optimized transducer improves the echo voltage amplitude significantly, reaching nearly 3 times. The above advantages are further verified in high-quality ultrasound and photoacoustic imaging. The optimization method has valuable guidance for the design of high-frequency composite transducers, which have great potential in ultrasonic and photoacoustic imaging applications.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"33 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627591","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

Thermal stability of FeSi as barrier layer in high-performance Mg2Si0.3Sn0.7 thermoelectric device 高性能Mg2Si0.3Sn0.7热电器件中FeSi势垒层的热稳定性

IF 8.4 1区材料科学

Journal of Materiomics Pub Date : 2025-03-14 DOI: 10.1016/j.jmat.2025.101044

Shanshan Hu , Chen Huang , Changyuan Li , Long Yang , Zhiwei Chen , Baisheng Sa , Wen Li , Yanzhong Pei

{"title":"Thermal stability of FeSi as barrier layer in high-performance Mg2Si0.3Sn0.7 thermoelectric device","authors":"Shanshan Hu , Chen Huang , Changyuan Li , Long Yang , Zhiwei Chen , Baisheng Sa , Wen Li , Yanzhong Pei","doi":"10.1016/j.jmat.2025.101044","DOIUrl":"10.1016/j.jmat.2025.101044","url":null,"abstract":"<div><div>Thermal stability of thermoelectric devices plays a pivotal role in their practical applications. Chemical reaction/diffusion between thermoelectric materials and electrodes is one of the primary factors contributing to the degradation/failure of device performance at elevated temperatures. Introducing barrier layers to impede the behavior of chemical reactions has emerged as an effective approach for averting the failure of these devices. In this work, the FeSi is revealed to be a potent material of barrier layer in high-performance Mg2Si0.3Sn0.7 thermoelectric material based on the considerations of interfacial reaction energy and sinterability. The well-established bond in Mg2Si0.3Sn0.7/FeSi joint results in a low contact resistivity of ∼20 μΩ⸱cm2 and a conversion efficient of ∼6.5% for the Mg2Si0.3Sn0.7 single-leg device is achieved at a temperature difference of ∼290 K. Long-term measurements of the device at a hot-side temperature of 600 K reveal that the performance remains nearly invariable as time further increases, which suggests that the FeSi layer retards the chemical reaction/diffusion.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"11 5","pages":"Article 101044"},"PeriodicalIF":8.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627590","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