Advanced Electronic Materials最新文献_第4页

Multi-Walled Carbon Nanotubes Suspensions as Liquid Conductors: Electrical and Mechanical Network Interplay 作为液体导体的多壁碳纳米管悬浮液：电气和机械网络的相互作用

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-23 DOI: 10.1002/aelm.202400917

Sergio Lago-Garrido, Dominik S. Schmidt, María J. Martín-Alfonso, Lola González-García

{"title":"Multi-Walled Carbon Nanotubes Suspensions as Liquid Conductors: Electrical and Mechanical Network Interplay","authors":"Sergio Lago-Garrido, Dominik S. Schmidt, María J. Martín-Alfonso, Lola González-García","doi":"10.1002/aelm.202400917","DOIUrl":"https://doi.org/10.1002/aelm.202400917","url":null,"abstract":"Soft-adaptive electronics require both sensor and conductor materials. The key parameter for these materials is their mechanoelectrical properties. Liquid metals and solid conductive composites have been exploited in this application field, but both are limited by either their chemical stability or limited flexibility, respectively. Electrofluids are a novel approach toward soft electronic components. They are concentrated colloidal suspensions of conductive particles, in which dynamic contacts retain electrical conductivity under deformation, filling the gap between liquid metals and solid composites. Here, the mechanical and electrical network interplay of electrofluids is studied based on multi-walled carbon nanotubes (MWCNTs) in glycerol. These networks arise at different filler concentrations, showing a different response to external deformations. It is found that electrical conductivity occurs without the presence of a rigid mechanical network, which allows MWCNT suspensions to be electrically conductive even under flow conditions. By performing rheoelectrical measurements, the study observed how the mechanical and electrical networks evolve with the applied deformation. The study demonstrates the applicability of electrofluids with tailored mechanoelectrical properties as soft electrical connectors.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"33 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Interfacial Photogating of Graphene Field-Effect Transistor for Photosensory Biomolecular Detection 用于光敏生物分子检测的石墨烯场效应晶体管界面光门控

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-23 DOI: 10.1002/aelm.202400716

Leslie Howe, Yifei Wang, Kalani H. Ellepola, Vinh X. Ho, Rosalie L. Dohmen, Marlo M. Pinto, Wouter D. Hoff, Michael P. Cooney, Nguyen Q. Vinh

{"title":"Interfacial Photogating of Graphene Field-Effect Transistor for Photosensory Biomolecular Detection","authors":"Leslie Howe, Yifei Wang, Kalani H. Ellepola, Vinh X. Ho, Rosalie L. Dohmen, Marlo M. Pinto, Wouter D. Hoff, Michael P. Cooney, Nguyen Q. Vinh","doi":"10.1002/aelm.202400716","DOIUrl":"https://doi.org/10.1002/aelm.202400716","url":null,"abstract":"The photogating effect, induced by a light-driven gate voltage, modulates the potential energy of the active channel in field-effect transistors, leading to a high photoconductive gain of these devices. The effect is particularly pronounced in low-dimensional structures, especially in graphene field-effect transistors. Along with unusual optical and electrical properties, graphene with ultra-high carrier mobility and a highly sensitive surface generates a strong photogating effect in the structure, making it an excellent element for detecting light-sensitive biomolecules. In this work, graphene field-effect transistor biosensors is demonstrated for the rapid detection of photoactive yellow protein in an aqueous solution under optical illumination. The devices exhibit millisecond-scale response times and achieve a detection limit below 5.8 fM under blue-light excitation, consistent with the absorption characteristics of the protein. The photogating effect in graphene field-effect transistors provides a promising approach for developing high-performance, light-sensitive biosensors for biomolecular detection applications.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"7 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Depth-Customizable 3D Electrode Array for Recording Functional Connectivity in the Brain 用于记录大脑功能连接的深度可定制3D电极阵列

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-23 DOI: 10.1002/aelm.202500121

Minseok Kim, Sehwan Park, Haeyun Lee, Jimin Lee, Namsun Chou, Hyogeun Shin

{"title":"Depth-Customizable 3D Electrode Array for Recording Functional Connectivity in the Brain","authors":"Minseok Kim, Sehwan Park, Haeyun Lee, Jimin Lee, Namsun Chou, Hyogeun Shin","doi":"10.1002/aelm.202500121","DOIUrl":"https://doi.org/10.1002/aelm.202500121","url":null,"abstract":"Understanding neural activity across multiple brain regions, especially in three dimensions, is essential for advancing neuroscience research. However, traditional 3D electrode arrays are often restricted to fixed depths, limiting their ability to probe complex brain structures. In this study, a depth-customizable, flexible 3D multi-shank electrode array that produces precise neural recordings at various brain depths is developed. Integrating 2D flexible electrode arrays with a modular supporting board allowed the insertion depth to be easily adjusted without re-fabrication. In vivo experiments produce successful recordings from the motor cortex, somatosensory cortex, and deep structures such as the substantia nigra. Functional connectivity analysis also reveals strong correlations between the substantia nigra and motor cortex, confirming that the developed array can be used to accurately assess neural network dynamics in 3D space. Due to its greater experimental flexibility, the depth-customizable 3D electrode array developed in this study represents a versatile and cost-effective tool for assessing functional connectivity across the entire brain.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"50 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Understanding the Effects of Ta Doping in Sb2Te3 for High-Performance Phase Change Memory 了解在 Sb2Te3 中掺杂 Ta 对高性能相变存储器的影响

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-23 DOI: 10.1002/aelm.202400790

Hansang Sung, Jaemin Park, Siwoo Kim, Hyoin Song, Chanwoong Park, Jaein Park, Sucheol Ju, Heon Lee

{"title":"Understanding the Effects of Ta Doping in Sb2Te3 for High-Performance Phase Change Memory","authors":"Hansang Sung, Jaemin Park, Siwoo Kim, Hyoin Song, Chanwoong Park, Jaein Park, Sucheol Ju, Heon Lee","doi":"10.1002/aelm.202400790","DOIUrl":"https://doi.org/10.1002/aelm.202400790","url":null,"abstract":"Phase change memory is a leading candidate for storage class memory (SCM). Among various phase-change materials, Sb-Te-based materials, which have high-speed operation characteristics, are actively studied. Herein, a high-performance phase-change material is designed for doping tantalum (Ta) inside Sb2Te3 (ST). To optimize the Ta doping concentration, Ta-doped ST films with various Ta concentrations are fabricated using a sputtering process. The phase change characteristics of the fabricated Ta-doped ST films of various concentrations are analyzed, and the crystallographic, structural, and electrical effects of Ta doping inside Sb2Te3 are analyzed. Analysis of the Ta doping effect on Sb2Te3 shows that the crystallization temperature of the ST-based phase-change material increased and that grain growth is suppressed, thereby affecting electrical conductivity. Consequently, the optimized Ta doping concentration as a phase-change material is obtained. A phase change memory device is fabricated using optimized Ta(0.41):ST and confirmed to have fast set speed (≈15 ns) and low resistance drift characteristics. Through this study, the Ta doping effect of Sb2Te3 is extensively analyzed, and the optimal Ta doping concentration is demonstrated. It is confirmed that Ta-doped ST is a high-performance phase-change material applicable to next-generation SCM.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"30 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Getting Under the Sensor's Skin: The Importance of Electrical Contact Characterization for Conductive Composite Elastomers (Adv. Electron. Mater. 5/2025) 深入传感器内部：导电复合弹性体电接触表征的重要性（Adv.）

IF 5.3 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-23 DOI: 10.1002/aelm.202570015

Claire C. Onsager, Lev Rovinsky, Can C. Aygen, Shira K. Cohen, Noa Lachman, Matthew A. Grayson

{"title":"Getting Under the Sensor's Skin: The Importance of Electrical Contact Characterization for Conductive Composite Elastomers (Adv. Electron. Mater. 5/2025)","authors":"Claire C. Onsager, Lev Rovinsky, Can C. Aygen, Shira K. Cohen, Noa Lachman, Matthew A. Grayson","doi":"10.1002/aelm.202570015","DOIUrl":"https://doi.org/10.1002/aelm.202570015","url":null,"abstract":"Conductive Composite ElastomersConducting polymer composites can be fashioned into novel sensing applications such as robotic skins. However, such composites naturally form an insulating surface layer, and the fidelity of such sensors depends on having reliable ohmic contact through this insulating surface to the underlying touch-sensing layer. Explicit studies of this surface layer are therefore needed; in article number 2400848, Noa Lachman, Matthew A. Grayson, and co-workers not only demonstrate the characterization of this insulating surface layer and the challenges it poses to making good electrical contact, but also provide prescriptive tools for fabricating and testing such contacts for proper ohmic behavior. Robotic image courtesy of the HAND-Engineering Research Center lab of Northwestern University.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"11 5","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aelm.202570015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Electronic Nanomaterials for Plants: A Review on Current Advances and Future Prospects 植物电子纳米材料研究进展与展望

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-23 DOI: 10.1002/aelm.202500080

Ciro Allará, Giuseppe Ciccone, Manuela Ciocca, Sahira Vasquez, Pietro Ibba, Mauro Maver, Tanja Mimmo, Paolo Lugli, Luisa Petti

{"title":"Electronic Nanomaterials for Plants: A Review on Current Advances and Future Prospects","authors":"Ciro Allará, Giuseppe Ciccone, Manuela Ciocca, Sahira Vasquez, Pietro Ibba, Mauro Maver, Tanja Mimmo, Paolo Lugli, Luisa Petti","doi":"10.1002/aelm.202500080","DOIUrl":"https://doi.org/10.1002/aelm.202500080","url":null,"abstract":"Global food security faces increasing challenges due to population growth, climate change, and the loss of arable land. To meet the growing demand for food, innovative solutions are essential. Enhancing plant photosynthesis and stress tolerance represents a promising strategy to boost crop yields and reduce vulnerability to environmental stressors. Electronic nanomaterials have emerged as a transformative technology to address these issues. Their ability to encapsulate bioactive substances, green fertilizers, and nutrients, while controlling their release, offers significant advantages over traditional methods such as chemical fertilizers and conventional plant breeding. Electronic nanomaterials can enhance nutrient uptake, biomass production, photosynthetic efficiency, and resilience to biotic and abiotic stresses in a sustainable manner. This review explores the role of metals, metal oxides, metal-organic frameworks, and carbon-based nanomaterials in improving agricultural productivity. It also highlights microfluidics as a complementary technology for testing nanomaterials and optimizing key plant processes. Microfluidics can develop transport models, improve understanding of plant compartments, and minimize side effects. By integrating nanotechnology with advanced tools like microfluidics, agriculture can adopt sustainable practices to address food security challenges. This synergy fosters crop resilience and productivity, paving the way for innovative agricultural solutions.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"24 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-Density Flexible Neural Implants with Submicron Feedline Resolution 具有亚微米馈线分辨率的高密度柔性神经植入体

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-22 DOI: 10.1002/aelm.202500088

Lina Koschinski, Thomas Grap, Erkan Yilmaz, Marius Kleutgens, Simon Decke, Martin Kasavetov, Marie Jung, Alejandro Carnicer-Lombarte, George Malliaras, Andreas Offenhäusser, Viviana Rincón Montes

{"title":"High-Density Flexible Neural Implants with Submicron Feedline Resolution","authors":"Lina Koschinski, Thomas Grap, Erkan Yilmaz, Marius Kleutgens, Simon Decke, Martin Kasavetov, Marie Jung, Alejandro Carnicer-Lombarte, George Malliaras, Andreas Offenhäusser, Viviana Rincón Montes","doi":"10.1002/aelm.202500088","DOIUrl":"https://doi.org/10.1002/aelm.202500088","url":null,"abstract":"The development of high-density microelectrode arrays (MEAs) for large-scale brain recordings requires neural probes with reduced footprints to minimize tissue damage. One way to achieve this is by implementing dense electrode arrays with narrower feedline dimensions, though this increases susceptibility to capacitive coupling between electrical interconnects. To address this, this study explores the resolution limits for high-density flexible MEAs by optimizing the fabrication using optical contact lithography (OCL) and electron beam lithography (EBL). OCL enables metal feedlines with widths of 520 nm and interconnect spaces of 280 nm, while EBL allows the realization of 50 nm feedlines with 150 nm spaces on flexible parylene C substrates. Based on these techniques, we fabricate a flexible 64-channel intracortical implant with a miniaturized cross-section of only 50 × 6 or 70 × 6 µm2. In vivo validation in awake rats demonstrates that the fabricated, high-density flexible intracortical implants with submicron feedline resolution offer low-impedance electrodes and reduced crosstalk, enabling reliable neuronal recordings. These findings demonstrate the feasibility of miniaturizing flexible MEAs using a single-metal layer process, thereby reducing manufacturing complexity in high-density thin-film polymer-based neural interfaces.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"38 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhancing Ga─Sb Bonds by GaSb Co-Doping Ge2Sb2Te5 for High Speed and Thermal Stability Phase Change Memory 通过 GaSb 共掺杂 Ge2Sb2Te5 来增强 Ga─Sb 键，从而实现高速度和热稳定性相变存储器

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-22 DOI: 10.1002/aelm.202500032

Ke Gao, Ruizhe Zhao, Xin Li, Jingwei Cai, Hao Tong, Xiangshui Miao

{"title":"Enhancing Ga─Sb Bonds by GaSb Co-Doping Ge2Sb2Te5 for High Speed and Thermal Stability Phase Change Memory","authors":"Ke Gao, Ruizhe Zhao, Xin Li, Jingwei Cai, Hao Tong, Xiangshui Miao","doi":"10.1002/aelm.202500032","DOIUrl":"https://doi.org/10.1002/aelm.202500032","url":null,"abstract":"Chalcogenide phase change memory, a next-generation non-volatile memory technology, holds significant promise in neuromorphic computing, leading to an urgent demand for high-performance phase change materials. However, in the realm of phase change materials, there appears to be an inherent contradiction between enhancing crystallization speed and bolstering amorphous stability. In this work, the formation of Ga─Ge bonds associated with Ga single doping are effectively addressed through the deliberate incorporation of GaSb co-doping. This strategic approach to bonding variety has significantly improved operational speed to a remarkable 8 ns, the crystallization temperature is elevated to 196 °C, and multilevel phase change performance is retained. First-principles calculations and material characterization is conducted to elucidate the underlying mechanisms responsible for the observed enhancements in both thermal stability and operation speed. This investigation provides valuable insights for optimizing the performance of phase change materials and addresses the pressing challenge of integrating phase change materials into a neuromorphic computing system.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"15 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143857568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Crack-Controlled Stretchable Gold Conductive Electrode through One-Step Carbon Nanotube Spray Deposition 一步喷镀碳纳米管制备裂纹控制可拉伸金导电电极

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-21 DOI: 10.1002/aelm.202500033

Masashi Miyakawa, Hiroshi Tsuji, Mitsuru Nakata

引用次数: 0

Solvated PbI2 Clusters Preceding the Crystallization of Lead Halide Perovskites–a UV/VIS In Situ Study 卤化铅钙钛矿结晶前的溶剂化PbI2簇-紫外/可见原位研究

IF 6.2 2区材料科学

Advanced Electronic Materials Pub Date : 2025-04-21 DOI: 10.1002/aelm.202500060

Maximilian Spies, Simon Biberger, Fabian Eller, Eva M. Herzig, Anna Köhler

{"title":"Solvated PbI2 Clusters Preceding the Crystallization of Lead Halide Perovskites–a UV/VIS In Situ Study","authors":"Maximilian Spies, Simon Biberger, Fabian Eller, Eva M. Herzig, Anna Köhler","doi":"10.1002/aelm.202500060","DOIUrl":"https://doi.org/10.1002/aelm.202500060","url":null,"abstract":"The solution‐based fabrication of reproducible, high‐quality lead iodide perovskite films demands a detailed understanding of the crystallization dynamics, which is mainly determined by the perovskite precursor solution and its processing conditions. A systematic in situ study is conducted during the critical phase before the nucleation in solution to elucidate the formation dynamics of lead iodide perovskite films. Using ultraviolet (UV) absorption spectroscopy during spin coating allows to track the evolution of iodoplumbate complexes present in the precursor solution. It is found that prior to film formation, a novel absorption signature at 3.15 eV arises. This is attributed to the emergence of a PbI2‐DMF solvated (PDS) phase. The amount of PDS phase is closely connected to the concentration of the solution layer during spin coating. It is also proposed that PDS clusters are a predecessor of crystalline perovskite phases and act as nucleation seeds in the precursor solution. In this way, this work provides insights into the early stages of perovskite crystallization.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"108 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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