Advanced Functional Materials最新文献

{"title":"Long‐Life Anode‐Free Lithium Metal Battery Enabled by Synergistic Electrodes Design","authors":"Fangding Huang, Xinjian Li, Yu Lin, Xueyang Wang, Wenchang Zhu, Xinghua Chen, Leyu Ding, Xinyu Zhang, Xiaotian Zhu, Chengyuan Peng, Ying He, Chang Lu, Jianqing Zhao, Zhao Deng","doi":"10.1002/adfm.202510253","DOIUrl":"https://doi.org/10.1002/adfm.202510253","url":null,"abstract":"Anode‐free lithium metal batteries (AFLMBs) have been emerging for energy‐dense practical applications, but they encounter a major issue of cycling instability due to the poor lithium plating/stripping reversibility on the copper (Cu) current collector during electrochemical cycling. A synergistic electrodes design is reported to ameliorate long‐term cycling performance for AFLMBs. In the cathode, the Li‐rich Li<jats:sub>22</jats:sub>Sn<jats:sub>5</jats:sub>‐Li<jats:sub>2</jats:sub>O‐LiF (LSOF) shell is fabricated on core LiFePO<jats:sub>4</jats:sub> (LFP) particles to provide excessive active lithium ion (Li<jats:sup>+</jats:sup>) during the initial charging as the lithium compensator. Concurrently in the anode, the Cu foil is coated with a conformal and uniform Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> layer through atomic layer deposition (ALD) to obtain the composite current collector. The enhanced lithiophilic property of Cu@ALD‐Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> is conclusively proved by electrochemical measurements, in situ optical microscopy, and theoretical simulations, resulting in improved reversibility and kinetics of the lithium plating/stripping on its surface. The LFP@LSOF||Cu@ALD‐Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> pouch cell with a capacity of 26 mAh achieves a desirable 79.3% capacity retention after 200 cycles, demonstrating significantly enhanced cycling stability for AFLMBs. This work provides a breakthrough solution for lengthening the cycle life of anode‐free lithium metal batteries for their promising practical deployment.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"94 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144639940","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}

{"title":"Biodegradable Fe‐Zn Alloy Microtubes with Good Mechanical Properties, Degradability, and Cytocompatibility Prepared by Electrodeposition","authors":"Shuaikang Yang, Fengyun Yu, Weiqiang Wang, Yu Gao, Zihan Zhang, Jiawen Wang, Peiwen Miao, Shengzhi Hao","doi":"10.1002/adfm.202504797","DOIUrl":"https://doi.org/10.1002/adfm.202504797","url":null,"abstract":"Biodegradable iron‐based alloys show significant potential for use in degradable vascular stents due to their excellent mechanical properties and good biocompatibility. However, their application is limited by slow corrosion degradation rates. In this study, iron‐based microtubes alloyed with Zn are fabricated through cathode‐rotated electrodeposition, resulting in accelerated degradation rates. The microstructure, mechanical properties, corrosion behavior, and cytocompatibility of the Fe‐Zn alloy microtubes are systematically investigated. Results show that the Fe‐Zn alloy microtubes have submicron‐sized equiaxed grains and micron‐sized columnar grains. These alloys exhibit excellent mechanical properties, the ultimate tensile strengths of Fe‐2.8Zn and Fe‐5.0Zn alloys are 493 and 525 MPa, respectively, with elongations of 12.2% and 9.8%. Zn is incorporated into the α‐Fe matrix as a solid solution, enhancing electrochemical activity. After 28 days of immersion in simulated body fluid (SBF), Fe‐Zn alloys with up to 5 wt.% Zn exhibit a relatively uniform degradation pattern with corrosion rates exceeding 0.150 mm y<jats:sup>−1</jats:sup>. Electrochemical tests and immersion experiments reveal the corrosion product formation process and mechanisms. In vitro tests confirm no adverse effects on endothelial cell viability. Analysis shows that Fe‐Zn alloy microtubes, with regulated corrosion behavior and good mechanical properties, are promising candidates for biodegradable vascular stents.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"36 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144630381","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}

{"title":"Peak‐in‐Valley Metal Nano‐Architectures via E‐Beam‐Guided Metal Oxide Redox","authors":"Auwais Ahmed, Andrei G. Fedorov","doi":"10.1002/adfm.202514610","DOIUrl":"https://doi.org/10.1002/adfm.202514610","url":null,"abstract":"Focused electron beams enable nanoscale material modification via localized etching or deposition. In liquid‐phase electron‐beam‐mediated processing, radiolysis‐driven redox reactions present an opportunity to control both etching and deposition simultaneously. Here, this duality using a water‐ammonia solvent as a tunable redox mediator on copper surfaces is demonstrated. At lower ammonia concentrations, the oxidation process dominates, etching copper to sub‐50‐nm depths. The copper ions and ion‐complexes released during this initial oxidation step are reduced by solvated electrons resulting in metal deposition into the etched sites, over longer e‐beam exposures, producing characteristic peak‐in‐valley nanostructures. Conversely, at higher ammonia concentrations copper‐ammine ion complexation and radiolytic oxidizing species scavenging by ammonia occur at higher rates, creating a reducing environment conducive to rapid beam‐guided copper deposition. Reaction‐transport simulations and experiments are performed to show the effects of ammonia‐mediated radiolysis chemistry, describing the direct influence of solvent concentration on redox balance and the outcome of e‐beam guided processing. By uniting both etching and deposition within a single framework, this work provides a versatile route for controlled surface nanostructuring.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"19 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622267","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}

{"title":"New Prospects in Built‐In Electric Fields for Electromagnetic Wave Absorption: from Fundamentals to Interdisciplinary Applications","authors":"Shijie Zhang, Jiajun Zheng, Zhiwei Zhao, Suxuan Du, Di Lan, Zhenguo Gao, Guanglei Wu","doi":"10.1002/adfm.202513762","DOIUrl":"https://doi.org/10.1002/adfm.202513762","url":null,"abstract":"Construction of built‐in electric fields (BIEFs) in nanohybrids has been corroborated as a robust strategy for modulating the electromagnetic response by manipulating the charge redistribution and built‐in electrostatic potential gradients, thereby enhancing the dielectric polarization attenuation. Nevertheless, substantial challenges persist in the comprehensively elucidation and reinforcement of BIEFs from both micro and macro perspectives. Herein, this review systematically elucidates the role of BIEFs in electromagnetic waves (EWs) protection. First, the fundamental principles of BIEFs are systematically outlined, including key concepts, response mechanisms, and characterization techniques. Then, the main optimization strategies‐particularly morphology regulation and defect engineering‐are critically examined to enhance BIEFs effect. The EWs absorption capabilities of representative BIEF‐based absorbers are further dissected, categorized by semiconductor–semiconductor junctions, metal–semiconductor heterostructures, and van der Waals interfaces. Subsequently, a concise summary highlights the effective strategies to optimize the overall performances of BIEFs type absorber. Furthermore, interdisciplinary perspectives are introduced by focusing on the integration of BIEFs with energy conversion, EWs responsive photocatalysts and smart detectors/sensors. Finally, current challenges and future development directions of BIEF engineering are rationally discussed, offering valuable insights for the design of high‐efficiency smart EWs absorbers.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"14 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622363","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}

{"title":"High‐Strength Ultrathin Solid‐State Electrolyte with Ion‐Rectifying Honeycomb‐Like Skeleton for Lithium Metal Batteries Free from External Pressure","authors":"Kexin Liu, Yun Xie, Tao Ding, Cong Guo, Pan Guo, Jie Liu, Xing Liu, Liyi Shi, Zhihao Pan, Xuesong Cai, Jianming Wang, Zhuyi Wang, Guosheng Shi, Shuai Yuan","doi":"10.1002/adfm.202511558","DOIUrl":"https://doi.org/10.1002/adfm.202511558","url":null,"abstract":"This work breaks the long‐standing thickness‐performance trade‐off in solid‐state electrolytes by designing an ultrathin (10 µm) membrane featuring an ion‐rectifying honeycomb‐like skeleton. The composite skeleton integrates boron nitride nanofibers (BNNFs) and lithiated nafion (Linafion) mosaics, simultaneously enabling rapid Li<jats:sup>+</jats:sup> transport and reinforcing mechanical robustness. The BNNFs provide abundant Lewis acid sites to anchor TFSI<jats:sup>‐</jats:sup> anions, while Linafion domains facilitate rapid cation exchange via sulfonic acid groups, synergistically promoting Li<jats:sup>+</jats:sup> dissociation from both lithium salts and poly(ester‐ether). This unique ion‐rectification mechanism achieves ultrafast Li⁺ conduction with a low activation energy (0.099 eV), yielding a remarkable room‐temperature ionic conductivity of 5.5 × 10<jats:sup>−4</jats:sup> S cm<jats:sup>−1</jats:sup> and a high Li<jats:sup>+</jats:sup> transference number of 0.85. The all solid‐state electrolyte membrane simultaneously exhibits exceptional tensile strength (30 MPa) and compatibility with high‐loading NCM811 cathodes (12 mg cm<jats:sup>−2</jats:sup>) and ultrathin lithium anodes (40 µm). The pouch‐type full cells deliver high energy densities (316.6 Wh kg<jats:sup>−1</jats:sup>, 838.1 Wh L<jats:sup>−1</jats:sup>) and cycling stability (92.2% retention after 100 cycles) at 25 °C. Notably, the full cell can work in a wide temperature range, while maintaining 120.6 mAh g<jats:sup>−1</jats:sup> at ‐10 °C without external pressure. This strategy enables practical high‐energy solid‐state batteries using ultrathin electrolytes with robust mechanics, rapid conduction, and interfacial stability.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"195 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622293","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}

{"title":"Multi‐Trifluoromethylated Benzotriazole‐Based Acceptor: Induced Molecular Orderly Packing Achieving High‐Performance Planar‐Mixed Heterojunction Organic Photovoltaics","authors":"Mei Luo, Siyu Zhao, Lingchen Kong, Jifa Wu, Mingqing Chen, Zesheng Zhang, Xuanchen Liu, Peng Dou, Mingke Li, Lei Ying, Mengting Jiang, Zuodong Qin, Guokai Jia, Junwu Chen","doi":"10.1002/adfm.202511193","DOIUrl":"https://doi.org/10.1002/adfm.202511193","url":null,"abstract":"In planar‐mixed heterojunction organic solar cells (PMHJ‐OSCs), efficient exciton utilization remains a significant challenge due to the limited diffusion distance of excitons. Achieving an optimized morphology in the active layer is essential for facilitating both exciton diffusion and charge carrier transport. In this work, the challenge is addressed by employing a dual strategy involving the development of a novel acceptor BTz‐CF<jats:sub>3</jats:sub> and ternary PMHJ blending. By mixing BTz‐CF<jats:sub>3</jats:sub> in the acceptor L8‐BO layer, PMHJ‐OSCs based on D18/L8‐BO:BTz‐CF<jats:sub>3</jats:sub> with a more ideal vertical phase separation showed an efficiency of 18.6%, higher than that of 18.2% for the D18/L8‐BO control system. Interestingly, introducing BTz‐CF<jats:sub>3</jats:sub> in the donor D18 layer could facilitate the penetration of L8‐BO into the donor layer while simultaneously induced the L8‐BO orderly stacking within the upper layer, showing a unique advantage in constructing improved morphology in the PMHJ active layer. As a result, the D18:BTz‐CF<jats:sub>3</jats:sub>/L8‐BO PMHJ‐device achieved an excellent efficiency of 19.5%. This work demonstrates that the strategy of incorporating a well‐miscible third component into the donor layer has great potential in fabricating efficient PMHJ OSCs by improving molecular stacking and vertical distribution.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"29 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144630065","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}

{"title":"Mildly Turbostratic Films based on Defect‐Less Ti3C2Tx MXene with Ultrahigh Volumetric Capacitance for Electrochemical Zinc‐Ion Storage","authors":"Guohao Li, Jiale Fan, Jie Wang, Yingxinjie Wang, Chi Chen, Hailiang He, Kejian Tang, Zhenjun Wu, Nan Zhang, Xiuqiang Xie","doi":"10.1002/adfm.202514630","DOIUrl":"https://doi.org/10.1002/adfm.202514630","url":null,"abstract":"The practical deployment of electrochemical zinc‐ion storage devices in compact electronics requires electrodes with high volumetric energy density and structural integrity. Vacuum‐filtrated 2D conductive MXenes inherently support dense packing, ensuring the volumetric performance and structural robustness. However, their application is hindered by the intrinsic defects in MXenes and <jats:italic>c</jats:italic>‐axis ordering, both of which restrict ion transport and reversibility. Here, a facile lithium chloride (LiCl) treatment protocol before vacuum filtration process of Ti<jats:sub>3</jats:sub>C<jats:sub>2</jats:sub>T<jats:italic><jats:sub>x</jats:sub></jats:italic> Mxene is reported. This induces local wrinkling that disrupts long‐range stacking while preserving short‐range order along <jats:italic>c</jats:italic>‐axis of the free‐standing Ti<jats:sub>3</jats:sub>C<jats:sub>2</jats:sub>T<jats:italic><jats:sub>x</jats:sub></jats:italic> assemblies, thereby facilitating through‐plane ion diffusion without compromising the electrode density. Simultaneously, Li<jats:sup>+</jats:sup> passivates the defects of Ti<jats:sub>3</jats:sub>C<jats:sub>2</jats:sub>T<jats:italic><jats:sub>x</jats:sub></jats:italic>, thereby enhancing electrochemical reversibility. The free‐standing electrodes for electrochemical zinc‐ion storage deliver a record‐high volumetric capacitance of 560.8 F cm<jats:sup>−3</jats:sup>, retain 70% capacitance at 20 A g<jats:sup>−1</jats:sup>, and exhibit 100.9% retention over 50,000 cycles. Notably, a flexible device using the customized film electrode maintains performance under extreme deformation, achieving an energy density of 60.6 Wh L<jats:sup>−1</jats:sup> at an ultrahigh power density of 42,779 W L<jats:sup>−1</jats:sup>. This work offers a scalable, MXene‐focused strategy that bridges dense film assembly with ion‐accessible architecture, enabling advanced energy storage for size‐constrained and deformable devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"12 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629660","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}

{"title":"Silane‐Modified Zn Anode Induced (100) Plane Preferential Nucleation Enables Stable Aqueous Zn Batteries","authors":"Hao Wu, Han Tian, Hong‐Ting Yin, Jin‐Lin Yang, Ruiping Liu","doi":"10.1002/adfm.202513580","DOIUrl":"https://doi.org/10.1002/adfm.202513580","url":null,"abstract":"Detrimental dendrite growth and water‐involved surface corrosion on Zn anode significantly hinder the aqueous Zn batteries implementation. Herein, Triacetoxy(vinyl)silane (VTSE) is employed as an etchant and a protective layer for Zn metal anode. Owing to the preferential adsorption of VTSE on Zn (002) and (101) planes, the treated Zn anode exhibits highly exposure of (100) facet with VTSE coverage. Such VTSE layer with strong Zn─Si─O interaction guides homogeneous Zn<jats:sup>2+</jats:sup> deposition with a good inheritance of (100) plane orientation, further bringing about a reduced nucleation overpotential and accelerated desolvation process. Meanwhile, the dense VTSE layer inhibits the water penetration and suppresses hydrogen evolution corrosion. As expected, the Zn||Cu half cell exhibits prolonged lifespan over 1000 h at 1 mA cm<jats:sup>−2</jats:sup> for 1 mAh cm<jats:sup>−2</jats:sup>.In the Zn||NVO full cell, a remarkable capacity retention of 73.1% can be reached after 2,000 cycles at 1 A g<jats:sup>−1</jats:sup>. This work offers new insights on the crystal plane manipulation engineering for aqueous Zn anode protection.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"13 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622263","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}

{"title":"Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation","authors":"Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Tie Jun Cui, Vincenzo Galdi","doi":"10.1002/adfm.202507430","DOIUrl":"https://doi.org/10.1002/adfm.202507430","url":null,"abstract":"Reconfigurable intelligent surfaces (RISs) have emerged as a key technology for shaping smart wireless environments in next‐generation wireless communication systems. To support the large‐scale deployment of RISs, a reliable and efficient diagnostic method is essential for maintaining optimal performance. In this work, a robust and effective approach for RIS diagnostics is proposed using a space‐time coding strategy with orthogonal codes. The proposed method encodes the reflected signals from individual RIS elements into distinct code channels, enabling the recovery of channel power at the receiving terminals for fault identification. Theoretical analysis shows that normally functioning elements generate high power in their respective code channels, whereas faulty elements exhibit significantly lower power. This distinction enables rapid and accurate diagnostics of the elements’ operational states through simple signal processing techniques. Simulation results validate the effectiveness of the proposed method, even under high fault ratios and varying receiving angles. Proof‐of‐principle experiments on two RIS prototypes are conducted, implementing two coding strategies: direct and segmented. Experimental results in a realistic scenario confirm the reliability of the diagnostic method, demonstrating its potential for large‐scale RIS deployment in future wireless communication systems and radar applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"109 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622286","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}

{"title":"Dual Optical Hyperbolicity of PdCoO2 and PdCrO2 Delafossite Single Crystals","authors":"Salvatore Macis, Annalisa D'Arco, Eugenio Del Re, Lorenzo Mosesso, Maria Chiara Paolozzi, Vincenzo Stagno, Alexander McLeod, Yu Tao, Pahuni Jain, Yi Zhang, Fred Tutt, Marco Centini, Maria Cristina Larciprete, Chris Leighton, Stefano Lupi","doi":"10.1002/adfm.202512820","DOIUrl":"https://doi.org/10.1002/adfm.202512820","url":null,"abstract":"Hyperbolic materials exhibit a very peculiar optical anisotropy with simultaneously different signs of the dielectric tensor components. This anisotropy allows the propagation of exotic surface‐wave excitations like hyperbolic phonons and plasmon polaritons. While hyperbolic materials hold promise for applications in subwavelength photonics and enhanced light‐matter interactions, their natural occurrence is limited to a few materials, often accompanied by significant dielectric losses and limited hyperbolic spectral bandwidth. Focusing on PdCoO<jats:sub>2</jats:sub> and PdCrO<jats:sub>2</jats:sub> delafossite transition‐metal oxides, in this paper unique dual hyperbolic regimes are demonstrated:: one localized around a phonon absorption in the mid‐infrared spectral region, and the other extending into the visible range. Both hyperbolic regimes show exceptional properties including low dissipation and high hyperbolic quality factors. These results pave the way for innovative applications of delafossite layered metals in subwavelength photonics, imaging, and sensing.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"1 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144622344","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}