Advanced Materials最新文献_第8页

Surface-Engineered Orthopedic Implant to Break the Antimicrobial-Osteogenic Paradox at Biointerfaces in the "Race for the Surface". 表面工程骨科植入物打破“表面竞赛”中生物界面的抗菌-成骨悖论。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-07-01 DOI: 10.1002/adma.202506113

Meizhou Sun,Chi Xu,Ruonan Wu,Qian Yang,Xiaokang Ding,Nana Zhao,Wei Geng,Yujie Sun,Shun Duan,Fu-Jian Xu

{"title":"Surface-Engineered Orthopedic Implant to Break the Antimicrobial-Osteogenic Paradox at Biointerfaces in the \"Race for the Surface\".","authors":"Meizhou Sun,Chi Xu,Ruonan Wu,Qian Yang,Xiaokang Ding,Nana Zhao,Wei Geng,Yujie Sun,Shun Duan,Fu-Jian Xu","doi":"10.1002/adma.202506113","DOIUrl":"https://doi.org/10.1002/adma.202506113","url":null,"abstract":"Implant-associated infections and compromised osseointegration pose a dual threat to bone implants due to the biological conflict between microbial invasion and host cell colonization. However, conventional contact-killing antimicrobial coatings may negatively affect the viability of mammalian cells, limiting their further application. Here, a surface modification strategy is proposed to help mammalian cells to win the \"race for the surface\" on the material-tissue interfaces. Through polyphenol-amine-mediated covalent modification, quaternary ammonium groups (bactericidal agents) and phosphate groups (promoting bone-regeneration factors) are spatially organized on titanium (Ti) surfaces to regulate the surface chemical characteristics of dental implants. The surface-engineered implants (Ti-AQs) exhibited balanced antibacterial and biocompatible properties. The optimized Ti-AQ-2 coating eradicated >99% of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) via destruction of disrupted bacterial membranes through metabolic interference, and simultaneously promoted adhesion, proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells through Ca2+-mediated signaling pathways. Moreover, Ti-AQs can drive immunomodulation biased macrophages toward pro-repair M2 polarization. In vivo evaluations in an implant-associated infection modal confirmed that Ti-AQ-2 inhibited infection at the early stage and enhanced bone-implant integration at the late stage. This work presents a facile strategy to regulate the surface performances for developing of antibacterial implants with high biocompatibility and bioactivity.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"26 1","pages":"e2506113"},"PeriodicalIF":29.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144521259","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

Use of CsPbCl3 Quantum Dots as a Chlorine Source Enables Formation of Thick Quasi-2D Perovskite Films for High-Performance Blue Light Emitting Diodes. 使用CsPbCl3量子点作为氯源可以形成厚的准二维钙钛矿薄膜，用于高性能蓝光发光二极管。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-07-01 DOI: 10.1002/adma.202506970

Yingtong Zhou,Yulu Hua,Shuo Li,Jiaqi Zhang,Haibo Wang,Wenxu Yin,Xiaoyu Zhang,Weitao Zheng,Andrey L Rogach

{"title":"Use of CsPbCl3 Quantum Dots as a Chlorine Source Enables Formation of Thick Quasi-2D Perovskite Films for High-Performance Blue Light Emitting Diodes.","authors":"Yingtong Zhou,Yulu Hua,Shuo Li,Jiaqi Zhang,Haibo Wang,Wenxu Yin,Xiaoyu Zhang,Weitao Zheng,Andrey L Rogach","doi":"10.1002/adma.202506970","DOIUrl":"https://doi.org/10.1002/adma.202506970","url":null,"abstract":"Achieving efficient and stable blue-emitting quasi-two-dimensional (quasi-2D) perovskite light-emitting diodes (LEDs) remains a challenge due to the poor solubility of conventional chloride precursors and the difficulty to form thick, uniform films with a well-controlled phase distribution. A new strategy is proposed to address this challenge using CsPbCl3 quantum dots (QDs) capped with oleylamine (OLA) ligands as an alternative chlorine source. It is demonstrated how the use of these QDs enables formation of quasi-2D perovskite films with vertically aligned crystalline structure, thickness over 100 nm, and improved stability. OLA ligands regulate the crystal phase distribution and grain boundaries, suppressing the appearance of small-n 2D phases and reducing the number of crystal defects, while inorganic CsPbCl3 QD cores induce vertical crystallization of quasi-2D perovskite films, endowing them with enhanced structural stability. The use of this non-conventional chlorine source is proven instrumental in improving external quantum efficiency of quasi-2D perovskite sky-blue LEDs, reaching 26.2% at 485 nm, with significantly enhanced electroluminescence stability both in terms of peak position and brightness. This study demonstrates a novel methodology using CsPbCl3 QDs capped with conventional organic ligands to achieve thick quasi-2D perovskite layers for blue LEDs, addressing existing limitations in perovskite optoelectronics.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"18 1","pages":"e2506970"},"PeriodicalIF":29.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144521395","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

Deciphering the Species-Dependent Polysulfide Corrosion on Lithium Anode Toward Durable Lithium-Sulfur Batteries. 对耐用锂硫电池的锂阳极多硫化物腐蚀现象的解读。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-07-01 DOI: 10.1002/adma.202506132

Yu-Jie Zhu,Chen-Xi Bi,Meng Zhao,Zheng Li,Wen-Jun Feng,Furong Sun,Xue-Qiang Zhang,Bo-Quan Li,Jia-Qi Huang

{"title":"Deciphering the Species-Dependent Polysulfide Corrosion on Lithium Anode Toward Durable Lithium-Sulfur Batteries.","authors":"Yu-Jie Zhu,Chen-Xi Bi,Meng Zhao,Zheng Li,Wen-Jun Feng,Furong Sun,Xue-Qiang Zhang,Bo-Quan Li,Jia-Qi Huang","doi":"10.1002/adma.202506132","DOIUrl":"https://doi.org/10.1002/adma.202506132","url":null,"abstract":"Lithium-sulfur (Li-S) batteries are promising next-generation energy storage systems due to their ultrahigh theoretical energy density of 2600 Wh kg-1. However, soluble lithium polysulfides (LiPSs) violently corrode Li metal anodes, inducing rapid capacity decay and poor cycling lifespan of Li-S batteries. Herein, the corrosion of different LiPS species on the Li metal anode is systematically investigated. The corrosion rate of Li metal anode by Li2S8 and Li2S6 is higher than Li2S4. The discrepancy in corrosion rate is attributed to the continuous reaction between the LiPSs and Li metal, while the corrosion can hardly be prohibited by the LiPS-generated solid electrolyte interphase. Smaller Li nuclei size, more uniform Li deposition, and more durable cycling of Li metal anodes are found in Li2S4 electrolyte in comparison with Li2S8 and Li2S6 electrolytes. Consequently, a LiPS selection strategy is proposed to selectively inhibit the corrosion of high-order LiPSs and successfully prolong the cumulative capacity by 31% in Li-S batteries. This work clarifies the fundamentals of Li metal anode corrosion by different LiPS species and highlights the rational selection of favorable LiPS species for promoting the cycling durability of Li-S batteries.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"2 1","pages":"e2506132"},"PeriodicalIF":29.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144521525","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

Ultrathin Deployable Femtosecond Vortex Laser 超薄可展开飞秒涡旋激光器

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202507122

Zhiyang Xu, Yu Liu, Siqi Chang, Qing Chang, Bo Chen, Chen Zhao, Meng Sun, Xiaomei Gao, Yinzhou Yan, Tianrui Zhai

{"title":"Ultrathin Deployable Femtosecond Vortex Laser","authors":"Zhiyang Xu, Yu Liu, Siqi Chang, Qing Chang, Bo Chen, Chen Zhao, Meng Sun, Xiaomei Gao, Yinzhou Yan, Tianrui Zhai","doi":"10.1002/adma.202507122","DOIUrl":"https://doi.org/10.1002/adma.202507122","url":null,"abstract":"Ultrafast vortex lasers, capable of emitting structured femtosecond pulses with orbital angular momentum, hold great potential for high‐speed optical communications, super‐resolution imaging, and advanced laser processing. However, the direct generation of femtosecond vortex pulses in micro/nanoscale lasers remains a major challenge. Here, an ultrathin deployable femtosecond vortex laser based on a ≈200 nm‐thick conjugated polymer gain membrane integrated with a square‐lattice photonic crystal supporting symmetry‐protected bound states in the continuum mode is demonstrated. The high‐Q vortex modes driven by Purcell enhancement enable low‐threshold (1.5 µJ cm2), femtosecond (≈600 fs) vortex pulse emission with peak power reaching several MW/cm2. The freestanding membrane can be modularly deployed onto arbitrary substrates, where direct laser fabrication is challenging. When deployed onto an optical mirror, the membrane laser achieved unidirectional emission, nearly doubling its output efficiency. Furthermore, a confocal optical path aligned the vortex laser coaxially with the pump light, highlighting its potential as an integrated module for simplifying super‐resolution imaging and lithography techniques.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"656 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144515251","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

Surface-Engineering Cellulose Nanofibers via In Situ PEDOT Polymerization for Superior Thermoelectric Properties. 原位聚合法制备具有优异热电性能的表面工程纤维素纳米纤维。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202506338

Yuxuan Xia, Jiahe Li, Ze Ji, Kexin Zhou, Yu Zhang, Yu Liu, Sai Wing Tsang, Ka Wai Wong, Qingyue Wang, Wen-Jun Wang, Andreu Cabot, Xuan Yang, Khak Ho Lim

{"title":"Surface-Engineering Cellulose Nanofibers via In Situ PEDOT Polymerization for Superior Thermoelectric Properties.","authors":"Yuxuan Xia, Jiahe Li, Ze Ji, Kexin Zhou, Yu Zhang, Yu Liu, Sai Wing Tsang, Ka Wai Wong, Qingyue Wang, Wen-Jun Wang, Andreu Cabot, Xuan Yang, Khak Ho Lim","doi":"10.1002/adma.202506338","DOIUrl":"https://doi.org/10.1002/adma.202506338","url":null,"abstract":"Cellulose nanofibrils (CNFs) are abundant and possess exceptional mechanical strength, but their intrinsic electrical insulation limits their application in wearable electronics. In this study, a versatile methodology is presented to produce highly conductive and durable CNFs through electrostatic potential-enhanced in situ polymerization of poly(3,4-ethylenedioxythiophene) (PEDOT). Guided by molecular dynamics simulations, electrostatic interactions are controlled by tailoring the chain length of PEDOT, achieving homogeneous polymerization. Compared to conventional polymerization and blending methods, this approach prevented the self-aggregation of PEDOT crystallites, which would otherwise localize charge carriers and hinder electrical transport, as confirmed by scanning Kelvin probe microscope (SKPM). These fibers can leverage nanocellulose's capillary effects to rearrange PEDOT crystallites, thereby boosting electrical conductivity by 5 orders of magnitude over suboptimal samples. The conductive nanocellulose paper achieves superior electrical conductivity (91 S cm-1) and durability, retaining 90% of electrical properties over 2000 bending cycles, 5000 abrasion tests, and prolonged wet-heat aging, freezing, and UV aging, while also demonstrating stable thermoelectric performance with power factor exceeding 3.8 µW mK-2 and a promising device output of 46.6 nW. These findings advance the conventional notion that charge-transporting nanocellulose can only be obtained by carbonization, graphitization, or physical blending with conductive components, which further boosts its potential for wearable applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e2506338"},"PeriodicalIF":27.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525604","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

Anisotropic Magnetic Heating for Adaptive Thermal Ablation. 自适应热消融的各向异性磁加热。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202507172

Sangmo Liu, Haopu Liang, Zonghu Han, Kevin J Anderton, Bat-Erdene Namsrai, Erik B Finger, John C Bischof, Yadong Yin

{"title":"Anisotropic Magnetic Heating for Adaptive Thermal Ablation.","authors":"Sangmo Liu, Haopu Liang, Zonghu Han, Kevin J Anderton, Bat-Erdene Namsrai, Erik B Finger, John C Bischof, Yadong Yin","doi":"10.1002/adma.202507172","DOIUrl":"https://doi.org/10.1002/adma.202507172","url":null,"abstract":"Thermal ablation provides minimally invasive treatment for cardiovascular and cerebrovascular conditions but risks damaging healthy tissues due to their low imaging contrast against diseased areas. This study introduces an adaptive thermal ablation probe leveraging anisotropic magnetic heating of magnetite nanorods pre-aligned within a polymer substrate. During magnetic pre-alignment, the nanorods form chain-like aggregates, enhancing their magnetic anisotropy and minimizing demagnetization effects. Under an alternating magnetic field, these features create a distinct difference in heat generation along the aggregates' easy and hard axes. This probe utilizes a bimorph structure incorporating a heating layer with aligned nanorods and an actuation layer containing NdFeB microparticles. Exposure to static and alternating magnetic fields induces probe bending, adjusting nanorod orientation to modulate heat generation and prevent overheating. In vitro experiments demonstrate successful thrombus phantom ablation in both fluid flow and porcine artery models while preserving tissue viability. This innovative approach advances thermal ablation technology by offering a safer, more precise, and adaptive solution with a high potential for clinical translation.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e2507172"},"PeriodicalIF":27.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525593","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

Catalytic Solder Fuses Solid-Solid Interfaces for All-Solid-State Lithium-Sulfur Batteries. 用于全固态锂硫电池的催化焊料熔合固体-固体界面。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202507308

Qiang Li, Chenxiang Xie, Xin Jiang, Chuannan Geng, Zhonghao Hu, Huilin Ge, Jiwei Shi, Li Wang, Wei Lv, Quan-Hong Yang

{"title":"Catalytic Solder Fuses Solid-Solid Interfaces for All-Solid-State Lithium-Sulfur Batteries.","authors":"Qiang Li, Chenxiang Xie, Xin Jiang, Chuannan Geng, Zhonghao Hu, Huilin Ge, Jiwei Shi, Li Wang, Wei Lv, Quan-Hong Yang","doi":"10.1002/adma.202507308","DOIUrl":"https://doi.org/10.1002/adma.202507308","url":null,"abstract":"All-solid-state lithium-sulfur batteries (ASSLSBs) have garnered significant research interest due to their inherent safety and high energy density. Nevertheless, their practical applications remain constrained by the sluggish sulfur reaction kinetics. While catalytic strategies have been demonstrated to facilitate sulfur conversion, their efficacy is fundamentally constrained by the lack of interfacial continuity. Thus, there is an urgent need for interfacial fusion to achieve such continuity and construct efficient catalytic interfaces. In this work, an amorphous interfacial fusion strategy using TiS2 as a catalytic \"solder\", enabling intimate integration among sulfur, the catalyst, and the solid-state electrolyte is proposed. Upon reacting with sulfur and the sulfide-based solid electrolyte, TiS2 induces the in situ formation of amorphous TiS4 and Li-Ti-P-S-Cl interfacial phases. These amorphous phases facilitate interfacial \"soldering\", creating integrated catalytic interfaces that enhance Li+ transport and catalytic efficiency. As a result, the optimized ASSLSBs show a reversible specific capacity of 720 mAh g-1 after 2000 cycles at 1 C. It also delivers a high areal capacity of 7.05 mAh cm-2 at a sulfur loading of 4.0 mg cm-2. This interfacial fusion strategy offers a promising pathway toward the practical development of high-performance ASSLSBs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e2507308"},"PeriodicalIF":27.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525597","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

Biased Plasma Treated Nickel Oxide for High-Efficiency Perovskite/Silicon Tandem Solar Cells. 偏置等离子体处理氧化镍的高效钙钛矿/硅串联太阳能电池。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202504581

Xiang Chen, Kun Gao, Xiaohua Xu, Liu Yang, Shibo Wang, Wei Shi, Fengxian Cao, Wenhao Li, Haicheng Li, Yao Li, Bowen Yang, Chang Wang, Wenhao Li, Wenjing Wang, Jihong Xiao, Su Zhou, Shaofei Yang, Cao Yu, Xiaohong Zhang, Xinbo Yang

{"title":"Biased Plasma Treated Nickel Oxide for High-Efficiency Perovskite/Silicon Tandem Solar Cells.","authors":"Xiang Chen, Kun Gao, Xiaohua Xu, Liu Yang, Shibo Wang, Wei Shi, Fengxian Cao, Wenhao Li, Haicheng Li, Yao Li, Bowen Yang, Chang Wang, Wenhao Li, Wenjing Wang, Jihong Xiao, Su Zhou, Shaofei Yang, Cao Yu, Xiaohong Zhang, Xinbo Yang","doi":"10.1002/adma.202504581","DOIUrl":"https://doi.org/10.1002/adma.202504581","url":null,"abstract":"Nickel oxide (NiOx) hole transport layer deposited by magnetron sputtering shows high stability, low cost, high reproducibility, and scalability for perovskite and tandem solar cells. However, the performance of perovskite and tandem solar cells with sputtered NiOx is limited by the defective interface and suboptimal energy band alignment. This work focuses on reconstructing the sputtered NiOx surface with in situ biased plasma treatment (BPT). It is demonstrated that in situ BPT following sputtering induces both physical and chemical changes on the NiOx surface, enabling a smoother and denser surface with controllable Ni3+/Ni2+ ratios. The in situ BPT NiOx is proven to be effective in improving the conductivity of NiOx, suppressing the non-radiation recombination, fine-tuning the energy band alignment, and facilitating the crystallinity of the perovskite. As a result, the power conversion efficiency (PCE) of wide bandgap perovskite solar cells is improved to 21.8% by the implementation of BPT NiOx. Further integrating the BPT NiOx into monolithic perovskite/silicon tandem solar cells results in a high PCE of 32.1% (certified 31.7%) with excellent operational stability.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e2504581"},"PeriodicalIF":27.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525594","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

Zeolite Structure Direction: Metals with a Dual Role as Amine Coordinators and Siloxy Connectors. 沸石结构方向：具有胺配合剂和硅氧烷连接剂双重作用的金属。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202504932

Juna Bae, Dieter Plessers, Gleb Ivanushkin, Aram Bugaev, Lynne B McCusker, Michiel Dusselier

引用次数: 0

Triboelectric Nanogenerators Enable Multifunctional Ice Accretion, Melting, and Interfacial Fracture Detection. 摩擦电纳米发电机可实现多功能冰积聚、融化和界面断裂检测。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-30 DOI: 10.1002/adma.202505793

Kamran Alasvand Zarasvand, Mohammad Soltani, Araz Rajabi-Abhari, Behrooz Khatir, Adel Malekkhouyan, Fatemeh Niknahad, Peter Di Palma, Julia Bains, Ali Dolatabadi, Yue Li, Mohammad H Zarifi, Ning Yan, Kevin Golovin

{"title":"Triboelectric Nanogenerators Enable Multifunctional Ice Accretion, Melting, and Interfacial Fracture Detection.","authors":"Kamran Alasvand Zarasvand, Mohammad Soltani, Araz Rajabi-Abhari, Behrooz Khatir, Adel Malekkhouyan, Fatemeh Niknahad, Peter Di Palma, Julia Bains, Ali Dolatabadi, Yue Li, Mohammad H Zarifi, Ning Yan, Kevin Golovin","doi":"10.1002/adma.202505793","DOIUrl":"https://doi.org/10.1002/adma.202505793","url":null,"abstract":"Triboelectric nanogenerators (TENGs) have significant potential to perform as sensors or compact electric power generators through the production of electrical charge during the frictional interactions between two dissimilar materials, such as liquids impacting solids. However, whether phase transitions generate a triboelectric response is not known. This study investigates the occurrence of triboelectrification during the water-ice phase transition using TENGs for real-time ice detection on critical engineering surfaces such as aircraft, wind turbine blades, and vehicles. TENGs are fabricated using aluminum electrodes and either polyethylene, silicone, or polytetrafluoroethylene as the dielectric. The freezing of water and the melting of ice are found to generate triboelectric current only during motion of the contact line, and the presence of ice can lessen additional charge transfer during continuous ice accretion. Further, ice type (rime versus glaze) can be differentiated during accretion by the initial transferred charge and how quickly the signal plateaus. It is observed that mechanical de-icing generates triboelectric charges that are proportional to the de-icing force, and this allows for the identification and quantification interfacial fracture mechanisms such as stress-controlled, toughness-controlled, and cavitation-controlled de-bonding. A prototype ice sensor is validated on a flying drone exposed to simulated rain under icing conditions, where it is able to detect both icing and de-icing in flight. The TENGs exhibited a signal-to-noise ratio as high as 83 dB, highlighting triboelectricity as a novel, real-time, and energy-efficient solution for ice detection and protection systems.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":" ","pages":"e2505793"},"PeriodicalIF":27.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525605","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