Matter最新文献

筛选
英文 中文
Figure-of-merit for tribovoltaic nanogenerators 摩擦伏打纳米发电机的性能图
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-04 DOI: 10.1016/j.matt.2025.102580
Xin Guo , Shilong Wang , Di Wei , Chi Zhang , Shuge Dai , Liming Ding , Zhong Lin Wang , Jiajia Shao
{"title":"Figure-of-merit for tribovoltaic nanogenerators","authors":"Xin Guo ,&nbsp;Shilong Wang ,&nbsp;Di Wei ,&nbsp;Chi Zhang ,&nbsp;Shuge Dai ,&nbsp;Liming Ding ,&nbsp;Zhong Lin Wang ,&nbsp;Jiajia Shao","doi":"10.1016/j.matt.2025.102580","DOIUrl":"10.1016/j.matt.2025.102580","url":null,"abstract":"<div><div>This work provides a device figure-of-merit (FOM<sub>D</sub>) for tribovoltaic nanogenerators (TVNGs), anchored in the maximum achievable output energy as defined by a comprehensive mathematical model that rigorously characterizes mechano-induced electron-hole transport within the space charge region. The energy conversion mechanism in TVNGs encompasses two distinct stages: first, mechanical energy is converted into potential energy through electron-hole pair generation; subsequently, the intrinsic electric field of the dynamic p-n junction separates and transports these charges, resulting in electrical output. Dynamic capacitance, which arises from spatial charge separation within the space charge region, fundamentally governs rectification behavior, phase lag, and amplitude attenuation under high-frequency operation. These effects are effectively captured using a transient equivalent circuit model composed of a current source, diode, and voltage-dependent capacitor. The defined FOM<sub>D</sub> is explicitly formulated as a function of short-circuit charge (<em>Q</em><sub>SC</sub>), open-circuit voltage (<em>V</em><sub>OC</sub>), and mechano-induced charge (<em>Q</em><sub>m</sub>).</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102580"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122438","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
GrainBot: Quantifying multi-variable microstructure disorder in materials GrainBot:量化材料的多变量微观结构紊乱
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-25 DOI: 10.1016/j.matt.2025.102626
Yalan Zhang , Yike Guo , Yuanyuan Zhou
{"title":"GrainBot: Quantifying multi-variable microstructure disorder in materials","authors":"Yalan Zhang ,&nbsp;Yike Guo ,&nbsp;Yuanyuan Zhou","doi":"10.1016/j.matt.2025.102626","DOIUrl":"10.1016/j.matt.2025.102626","url":null,"abstract":"<div><div>Advancements in microscopy have substantially enhanced our ability to capture high-resolution images of complex microstructures, while the information extractable through human interpretation or manual measurement remains limited. Here, we developed GrainBot, a machine learning-empowered toolkit designed to extract and quantify a wide array of microstructural features from atomic force microscopy (AFM) images, enabling high-throughput and correlated analysis of perovskite microstructures by three core modules: image segmentation, microstructural parameter quantification, and statistical analysis. We applied GrainBot to metal-halide perovskite thin films, which inherently exhibit a wide range of microstructural disorders, thereby building a comprehensive database of fully quantified features. By leveraging this dataset, we employed both classical statistical methods and interpretable machine learning models to uncover the relationships and interdependencies among microstructural attributes. This work establishes an intelligent framework for data-driven nanoanalytics of material microstructures.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102626"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147292577","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
Dipole effect enhanced liquid stream-current generator 偶极子效应增强型液体电流发生器
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 DOI: 10.1016/j.matt.2025.102632
Endian Cui , Pengfan Wu , Fayang Wang , Shiwei Xu , Danni Yang , Jiaqian Yang , Wangyang Zhang , Chenxi Zhao , Yi Yang , Yifan Bu , Man He , Xiaojing Mu , Zhong Lin Wang
{"title":"Dipole effect enhanced liquid stream-current generator","authors":"Endian Cui ,&nbsp;Pengfan Wu ,&nbsp;Fayang Wang ,&nbsp;Shiwei Xu ,&nbsp;Danni Yang ,&nbsp;Jiaqian Yang ,&nbsp;Wangyang Zhang ,&nbsp;Chenxi Zhao ,&nbsp;Yi Yang ,&nbsp;Yifan Bu ,&nbsp;Man He ,&nbsp;Xiaojing Mu ,&nbsp;Zhong Lin Wang","doi":"10.1016/j.matt.2025.102632","DOIUrl":"10.1016/j.matt.2025.102632","url":null,"abstract":"<div><div>Stream-current generators (SCGs) feature direct current output, environmental adaptability, and sustainability. However, their performance is limited by low ion migration efficiency and rapid decay of concentration gradients. In this study, we developed a functional material with a high specific surface area and elevated zeta potential via an <em>in situ</em> hydrothermal method, enhancing the built-in electric field through the dipole effect. Theoretical and experimental results demonstrate that this strategy accelerates ion migration and prolongs concentration gradient retention. A single device achieves an open-circuit voltage of 0.8 V and a peak short-circuit current of 1.5 mA, maintaining stable output for over 7,500 s. The series-parallel configuration powers a 3 W light bulb and a smartphone. A self-powered smart agriculture system operates reliably under complex conditions, demonstrating significant practical potential. This work highlights the pivotal role of the dipole effect in regulating the interfacial electric field, offering new insights for high-performance SCG design.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102632"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147417844","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
Liquid-solid interface chemistry in triboelectric nanogenerators: Mechanisms, structures, and applications 摩擦电纳米发电机的液固界面化学:机制、结构和应用
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 DOI: 10.1016/j.matt.2025.102573
Huanggang Wang , Jiamin Zhao , Kang Yu , Jinlong Wang , Song Zhang , Xiangjiang Meng , Zhiting Wei , Ziyi Ye , Zhaomeng Liu , Bin Luo , Shuangxi Nie
{"title":"Liquid-solid interface chemistry in triboelectric nanogenerators: Mechanisms, structures, and applications","authors":"Huanggang Wang ,&nbsp;Jiamin Zhao ,&nbsp;Kang Yu ,&nbsp;Jinlong Wang ,&nbsp;Song Zhang ,&nbsp;Xiangjiang Meng ,&nbsp;Zhiting Wei ,&nbsp;Ziyi Ye ,&nbsp;Zhaomeng Liu ,&nbsp;Bin Luo ,&nbsp;Shuangxi Nie","doi":"10.1016/j.matt.2025.102573","DOIUrl":"10.1016/j.matt.2025.102573","url":null,"abstract":"<div><div>In the context of sustainable and renewable energy, harvesting energy from water resources is of great significance, as the energy contained in water bodies far exceeds global electricity demand. However, achieving efficient energy harvesting requires a thorough understanding of the microscopic processes at the liquid-solid interface. Liquid-solid interface chemistry plays a key role in this process, as it governs both the microscopic electron transfer and the macroscopic physicochemical interactions at the interface. This review aims to provide insights into the structural design of liquid-solid triboelectric nanogenerator (L-S TENG) devices from the perspective of liquid-solid interface chemistry, thereby better guiding the development of L-S TENG in energy harvesting and related applications. The article first introduces the physicochemical interactions and influencing factors at the liquid-solid interface and then elucidates the mechanism of contact electrification at the liquid-solid interface. It then focuses on the design principles and output performance characteristics of open-structure and enclosed-structure L-S TENG devices, analyzing the features of each configuration and strategies for optimization. Subsequently, the latest advancements in L-S TENG applications are discussed. Finally, the development prospects and existing challenges of L-S TENG are addressed.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102573"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147417764","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
Self-oscillatory twisting artificial muscles 自振荡扭曲人造肌肉
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-06 DOI: 10.1016/j.matt.2025.102602
Jingjing Li , Huiling Xiao , Jiawei Yu , Zhigang Xia , Xiang Zhou , Zunfeng Liu
{"title":"Self-oscillatory twisting artificial muscles","authors":"Jingjing Li ,&nbsp;Huiling Xiao ,&nbsp;Jiawei Yu ,&nbsp;Zhigang Xia ,&nbsp;Xiang Zhou ,&nbsp;Zunfeng Liu","doi":"10.1016/j.matt.2025.102602","DOIUrl":"10.1016/j.matt.2025.102602","url":null,"abstract":"<div><div>Self-oscillating actuators that can achieve autonomous motions are highly desired in autonomous soft robotics and intelligent devices. Moreover, oscillators driven by multi-stimuli have attracted considerable interest and have potential applications in multiple complex environmental systems. However, most actuation systems require manual control of switches, and film-based twisting/untwisting oscillation and length stretching/contraction oscillation have not been realized. Here, we fabricated a helical nanofiber composite film and achieved twisting/untwisting oscillation, bending oscillation, and elongation/contraction oscillation under heat, light, and moisture stimuli. Moreover, the oscillator can realize continuous mechanical work under different loads as well as continuous electrical output. This study not only provides the twisting oscillation and twisting motion mechanism but also presents a versatile strategy to fabricate hydrogel-based bilayer hierarchical porous nanofiber composite film twisting oscillators. This actuation system with a twisting self-oscillation load capacity and a multi-stimuli response will be used for autonomous smart devices, autonomous energy conversion, and multi-scenario applications.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102602"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147417910","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
Ultra-strong reversible adhesion for climbing robots on rough surfaces by molecular-hair polymer 分子毛状聚合物用于爬行机器人在粗糙表面上的超强可逆粘附
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-01-30 DOI: 10.1016/j.matt.2025.102571
Jiabao Feng , Pan Gao , Wang Zhang , Ronald G. Larson , Yin Zhang , Guangxian Li , Miqiu Kong , Wei Pu
{"title":"Ultra-strong reversible adhesion for climbing robots on rough surfaces by molecular-hair polymer","authors":"Jiabao Feng ,&nbsp;Pan Gao ,&nbsp;Wang Zhang ,&nbsp;Ronald G. Larson ,&nbsp;Yin Zhang ,&nbsp;Guangxian Li ,&nbsp;Miqiu Kong ,&nbsp;Wei Pu","doi":"10.1016/j.matt.2025.102571","DOIUrl":"10.1016/j.matt.2025.102571","url":null,"abstract":"<div><div>Despite significant advances in gecko-inspired adhesives, there is still a big challenge to achieve superior surface adaptability and strong adhesion—particularly on rough surfaces. In this work, we design a “molecular hairs” branched adhesive, yielding strong adhesion on rough surfaces (280.6 kPa), easy detachment (1.3 kPa), and ultra-low preload (∼0.3 kPa), using temperature to regulate melting and crystallization of the molecular hairs. These impressive capabilities stem from enhanced wettability, nanoscale molecular interactions with the target surfaces, and highly tunable stiffness (1.97 kPa–149.3 MPa), which allow consistent conformability to rough surfaces. Embedding this adhesive into the footpads of a surface-adaptive robot enables it to climb vertically on smooth and rough surfaces. Our research represents a breakthrough in adhesive design, offering climbing robots unprecedented stability and minimal preload on rough surfaces.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102571"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146101893","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
Reconfigurable self-assembly of porous anisotropic colloids in nematic liquid crystals 向列液晶中多孔各向异性胶体的可重构自组装
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-02 DOI: 10.1016/j.matt.2025.102563
Souvik Ghosh , Jin-Sheng Wu , Nicholas Golden , Lech Longa , Ivan I. Smalyukh
{"title":"Reconfigurable self-assembly of porous anisotropic colloids in nematic liquid crystals","authors":"Souvik Ghosh ,&nbsp;Jin-Sheng Wu ,&nbsp;Nicholas Golden ,&nbsp;Lech Longa ,&nbsp;Ivan I. Smalyukh","doi":"10.1016/j.matt.2025.102563","DOIUrl":"10.1016/j.matt.2025.102563","url":null,"abstract":"<div><div>Dispersions of anisotropic nanoparticles in liquid crystalline hosts recently yielded new soft condensed matter states, like the thermally reconfigurable monoclinic and orthorhombic biaxial nematic liquid crystals, with a plethora of unusual phases and phase transformations. Our current study shows that the nanoscale porous nature of colloids with micrometer-range overall dimensions also enables highly reconfigurable orientations and assemblies of the microparticles, allowing for realization of condensed matter states with unusual combinations of low-symmetry nematic or smectic order and fluidity. Much like the anisotropic nanoparticles studied previously, these nanoporous anisotropic colloids exhibit thermally reconfigurable oriented alignment with respect to the far-field director, as well as diverse low-symmetry liquid crystalline phase behaviors. Our findings open doors to fundamental and applied uses of low-symmetry molecular-colloidal orientationally ordered states of matter with uninhibited fluidity, as well as liquid crystals with partial positional ordering, like low-symmetry smectics, which could lead to applications in metamaterial designs, electro-optics, photonics, etc.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102563"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147417765","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
Ultra-stretchable superomniphobic surfaces via machine-learning-guided laser ablation 通过机器学习引导激光烧蚀的超可拉伸超疏水表面
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-16 DOI: 10.1016/j.matt.2025.102610
Mohammad Javad Zarei , Sreekiran Pillai , Adil M. Rather , Mohammed S. Barrubeeah , Tarek Echekki , Arun K. Kota
{"title":"Ultra-stretchable superomniphobic surfaces via machine-learning-guided laser ablation","authors":"Mohammad Javad Zarei ,&nbsp;Sreekiran Pillai ,&nbsp;Adil M. Rather ,&nbsp;Mohammed S. Barrubeeah ,&nbsp;Tarek Echekki ,&nbsp;Arun K. Kota","doi":"10.1016/j.matt.2025.102610","DOIUrl":"10.1016/j.matt.2025.102610","url":null,"abstract":"<div><div>In this work, we report ultra-stretchable superomniphobic surfaces fabricated using a simple, inexpensive, scalable, and solvent-free CO<sub>2</sub> laser ablation. Since the parametric space for laser ablation is multidimensional with millions of combinations, we predicted the optimal laser ablation parameters to achieve superomniphobicity with a machine learning (ML)-based algorithm. Guided by ML, we experimentally achieved ultra-stretchable superomniphobic surfaces, which retained superomniphobicity even at 400% strain and 5,000+ stretch-release cycles, as well as under a diverse range of deformations. Furthermore, through systematic experiments and theoretical analysis, we studied the influence of elongation on contact angles, breakthrough pressures, and sliding angles on our ultra-stretchable superomniphobic surfaces. We envision that our innovative ML-guided laser ablation protocol to fabricate ultra-stretchable superomniphobic surfaces will pave the way to developing novel and scalable artificial skins, textile dressings, and stretchable electronics.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102610"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146223464","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
3D-printed continuous-silk-reinforced scaffolds with biomimetic mechanics for meniscus repair 具有仿生力学的3d打印连续丝增强半月板修复支架
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-20 DOI: 10.1016/j.matt.2025.102630
Ke Ma , Wenpei Lin , Zhiyu Liu , Lei Chen , Yongsheng Jie , Rui Zheng , Keiji Numata , Xin Chen , Zhengzhong Shao , Xiong Shu , Juan Guan , Hongbo Guo , Robert O. Ritchie
{"title":"3D-printed continuous-silk-reinforced scaffolds with biomimetic mechanics for meniscus repair","authors":"Ke Ma ,&nbsp;Wenpei Lin ,&nbsp;Zhiyu Liu ,&nbsp;Lei Chen ,&nbsp;Yongsheng Jie ,&nbsp;Rui Zheng ,&nbsp;Keiji Numata ,&nbsp;Xin Chen ,&nbsp;Zhengzhong Shao ,&nbsp;Xiong Shu ,&nbsp;Juan Guan ,&nbsp;Hongbo Guo ,&nbsp;Robert O. Ritchie","doi":"10.1016/j.matt.2025.102630","DOIUrl":"10.1016/j.matt.2025.102630","url":null,"abstract":"<div><div>Given limited meniscus self-repair capacity, an ideal implant fulfilling biomechanical and biological needs remains unmet. Inspired by natural meniscus microstructure, we developed a biomimetic scaffold using three-dimensional (3D)-printed polycaprolactone (PCL) reinforced with continuous silk fibers via <em>in situ</em> impregnation. The continuous-silk-reinforced composites (CSRC) scaffold replicates meniscus anisotropy and viscoelasticity, outperforming PCL in mechanical reinforcement. Preliminary tests confirmed cytocompatibility and <em>in vivo</em> biocompatibility, highlighting silk’s regenerative potential. Mechanistically, the CSRC scaffold synergizes rapid stress relaxation with silk bioactivity to activate the phosphatidylinositol 3-kinase (PI3K)-protein kinase B (Akt) pathway in synovial mesenchymal stem cells (SMSCs) under mechanical stimulation. This activation enhances SMSC survival/differentiation and accelerates tissue remodeling. Our strategy offers a promising meniscus tissue engineering solution and broadens applications of fiber composites in biomedical engineering.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102630"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146231384","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
CuI-enhanced thermoelectric performance in GeTe by synchronous modulation of hole concentration and thermal conductivity 通过同步调制空穴浓度和热导率,cu增强GeTe的热电性能
IF 17.5 1区 材料科学
Matter Pub Date : 2026-03-04 Epub Date: 2026-02-18 DOI: 10.1016/j.matt.2025.102609
Hezhang Li , Rui Zhang , Jinfeng Dong , Bowen Wang , Yilin Jiang , Jincheng Yu , Zhihang Shan , Jun Pei , Md All Amin Newton , Yi Niu , Jing Jiang , Zhicheng Huang , Yongqing Cai , Chao Wang , Bo-Ping Zhang , Jing-Feng Li
{"title":"CuI-enhanced thermoelectric performance in GeTe by synchronous modulation of hole concentration and thermal conductivity","authors":"Hezhang Li ,&nbsp;Rui Zhang ,&nbsp;Jinfeng Dong ,&nbsp;Bowen Wang ,&nbsp;Yilin Jiang ,&nbsp;Jincheng Yu ,&nbsp;Zhihang Shan ,&nbsp;Jun Pei ,&nbsp;Md All Amin Newton ,&nbsp;Yi Niu ,&nbsp;Jing Jiang ,&nbsp;Zhicheng Huang ,&nbsp;Yongqing Cai ,&nbsp;Chao Wang ,&nbsp;Bo-Ping Zhang ,&nbsp;Jing-Feng Li","doi":"10.1016/j.matt.2025.102609","DOIUrl":"10.1016/j.matt.2025.102609","url":null,"abstract":"<div><div>This study demonstrates that copper iodide (CuI) doping synergistically enhances the thermoelectric performance of GeTe by concurrently optimizing its electrical and thermal transport properties. The incorporation of CuI effectively suppresses native Ge vacancies through the formation of <em>V</em><sub>Ge</sub>-Cu<sub>i</sub> complexes, which reduces carrier scattering and enhances carrier mobility, leading to superior electrical performance when combined with intrinsic valence band convergence. Simultaneously, the introduced Cu-rich layer defects and secondary phases provide strong phonon scattering, maintaining low thermal conductivity despite the reduction in vacancy-related scattering. Building on this CuI-mediated defect and microstructure engineering, Bi-Sb co-doping was further employed to achieve a peak ZT of 1.9 and a high average ZT &gt; 1.2. The practical viability was confirmed by a segmented GeTe/(Bi,Sb)<sub>2</sub>Te<sub>3</sub> single-leg device achieving a high output power of 74 mW and a conversion efficiency of 10.4%, validating CuI doping as a highly effective strategy for advancing GeTe-based thermoelectrics, with broader implications for other semiconductor materials.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 3","pages":"Article 102609"},"PeriodicalIF":17.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146261131","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书