Journal of Science: Advanced Materials and Devices最新文献

{"title":"A face-shear mode magnetoelectric generator for mechanical vibrations and human motions","authors":"Wei He,&nbsp;Meiyan Li,&nbsp;Qiaoling Chen,&nbsp;Chiwen Qu","doi":"10.1016/j.jsamd.2026.101252","DOIUrl":"10.1016/j.jsamd.2026.101252","url":null,"abstract":"<div><div>A magnetoelectric (ME) generator using a <em>d</em>₃₆ face-shear mode ME transducer array is presented for mechanical vibrations and human motions. The generator consists of a magnetic levitation system, four <em>d</em>₃₆ face-shear mode ME transducers, and a shell with fixing components. Compared with the conventional <em>d</em>₁₅ mode mechanisms, the proposed ME transducer is inherently less prone to depolarization during operation, which originates from the distinct field-polarization configuration of the <em>d</em>₃₆ mode. A theoretical model is established based on the piezomagnetic and <em>d</em>₃₆ mode piezoelectric constitutive equations along with the dynamic equation of the magnetic levitation system. A 3 dB bandwidth of 1.4 Hz is obtained and a maximum power of 1.69 mW is generated with the load resistance of 5.9 MΩ at 0.6 g. The feasibility of the generator for capturing energy from human walking, running, jumping, and handshaking is verified experimentally. Maximum average powers of 0.144 mW at a running speed of 7 km/h, 0.157 mW during jumping, and 0.193 mW during handshaking were obtained from the teste<strong>r</strong> with a body weight of 80.1 kg and a body height of 178 cm. The results demonstrate that the <em>d</em>₃₆ mode ME generator is a prospective candidate for low-power electronics.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 3","pages":"Article 101252"},"PeriodicalIF":6.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148854396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing switching characteristics of precursor-concentration controlled Ag4.53Te3 nanoparticle-based RRAM devices","authors":"Jongmin Yoon,&nbsp;Taesu Kim,&nbsp;Jin-Hyuk Bae,&nbsp;Kwangeun Kim,&nbsp;Won-Yong Lee,&nbsp;Jaewon Jang","doi":"10.1016/j.jsamd.2026.101249","DOIUrl":"10.1016/j.jsamd.2026.101249","url":null,"abstract":"<div><div>This study introduces a novel method for enhancing the high-resistance-state/low-resistance-state (HRS/LRS) ratio of Ag_4.53Te₃ nanoparticle-based resistive random-access memory (RRAM) devices. This method also provides a promising pathway for optimizing the number of data storage levels in highly integrated RRAM arrays and multilevel RRAM systems for future applications. Ag_4.53Te₃ nanoparticles were first synthesized colloidally by optimizing the amount of the Te precursor (Na₂TeO₃) and were subsequently deposited to form Ag_4.53Te₃ films. As the amount of Na₂TeO₃ increased, the size of the synthesized Ag_4.53Te₃ nanoparticles also increased. Consequently, the deposited Ag_4.53Te₃ films exhibited larger crystallite sizes, fewer voids and defects, and greater thicknesses. Furthermore, the amounts of residual metallic Ag and Te decreased, which indicated more efficient conversion into Ag_4.53Te₃. These improved structural and chemical properties suppressed the leakage current and thereby enhanced the HRS/LRS ratio of the fabricated devices. In addition, the devices exhibited selector-free complementary resistive switching characteristics and stable nonvolatile memory characteristics, including endurance over 10³ cycles and retention for 10⁴ s, without significant deterioration.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 3","pages":"Article 101249"},"PeriodicalIF":6.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148854395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neem-derived silver-decorated RGO/ZnO heterostructure nanocomposite: A bifunctional material for sunlight-driven photocatalysis and solar energy conversion","authors":"Kandasamy Muthusamy ,&nbsp;Perumal Rameshkumar ,&nbsp;Lalitha Gnanasekaran ,&nbsp;Vijayakumar Paranthaman ,&nbsp;Dharani Shanmugapriya ,&nbsp;Faiz Arith ,&nbsp;Mohammad Aminul Islam","doi":"10.1016/j.jsamd.2026.101117","DOIUrl":"10.1016/j.jsamd.2026.101117","url":null,"abstract":"<div><div>In this study, neem extract was used as both a reducing and capping agent in environmental production in silver/graphene/zinc oxide ternary nanocomposite (Ag/RGO/ZnO NC). Highly densed pebble-stone like Ag/ZnO crystalline nanostructures embedded with RGO sheets were identified through high-resolution transmission electron microscopy (HRTEM). The photocatalytic activity of the green-synthesized Ag/RGO/ZnO NC was evaluated by examining its efficiency in degrading Rhodamine B (RhB) under exposure to sunlight irradiation. The nanocomposite disclosed a significant photocatalytic degradation efficiency of RhB dye with 99.8% due to the generation of hydroxyl radical (^●OH), evidenced by terephthalic acid fluorescence study. Similarly, the dye-sensitized solar cell (DSSC) efficiency of the green synthesized samples has also been explored under 1 sun. It was found that Ag/RGO/ZnO DSSC delivered a high power conversion efficiency (PCE) 4.04%, that ∼45% higher than pure ZnO DSSC can be credited to the accordance of Ag and RGO, acting as electron rich, and good interfacial electron mobility. Thus, this study further credits the greener fabrication of photocatalysts and dye-sensitized solar cell efficiency.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 2","pages":"Article 101117"},"PeriodicalIF":6.8,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Sn4+-modified Ti-rich CaCu3Ti4.5O12 ceramics with low loss and X8R-Grade thermal stability prepared by polymer pyrolysis” [J. Sci.: Adv. Mater. Devices. 11 (1) (2026) 101086]","authors":"Ekaphan Swatsitang ,&nbsp;Sasitorn Putjuso ,&nbsp;Anuchit Hunyek ,&nbsp;Thanin Putjuso","doi":"10.1016/j.jsamd.2026.101146","DOIUrl":"10.1016/j.jsamd.2026.101146","url":null,"abstract":"","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 2","pages":"Article 101146"},"PeriodicalIF":6.8,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148183670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mn-doped Cu-based 2D hybrid perovskites with enhanced ferroelectric energy storage performance","authors":"Viet Cuong Le ,&nbsp;Danh Tien Manh ,&nbsp;Hoang Hung Nguyen ,&nbsp;Hoang Phuc Le ,&nbsp;Nam Nhat Hoang ,&nbsp;The Long Phan ,&nbsp;Manh Quynh Luu ,&nbsp;Duc Thang Pham ,&nbsp;Huy Tiep Nguyen","doi":"10.1016/j.jsamd.2026.101118","DOIUrl":"10.1016/j.jsamd.2026.101118","url":null,"abstract":"<div><div>In recent years, two-dimensional hybrid organic-inorganic perovskites (2D-HOIPs) have emerged as versatile platforms for multifunctional devices owing to their tunable optical and electronic properties. In this study, crystals of (C₆H₅C₂H₄NH₃)₂Cu_1-xMn_xCl₄ (abbreviated as PCMC, with x = 0, 0.02, 0.04, and 0.06) were grown from supersaturated solution at room temperature. Their structural, optical, ferroelectric, magnetic, and piezoelectric properties were examined by X-ray diffraction, UV-Vis spectroscopy, Raman spectroscopy, vibrating sample magnetometry (VSM), polarization-electric field (P-E) measurements, and piezoresponse force microscopy (PFM). XRD patterns confirm phase-pure single crystals with a strong (00n) preferred orientation. UV-Vis spectra reveal a transmission window of 500-650 nm and a systematic bandgap narrowing from 2.38 eV (x = 0) to 2.28 eV (x = 0.06). P-E loops demonstrate well-defined ferroelectric-like switching behavior, while M − H curves show composition-dependent magnetic responses, providing evidence for the coexistence of electric and magnetic order. Among all compositions, the S1 (x = 0.02) sample exhibits the most balanced performance, with a remanent polarization of 0.34 μC/cm², a recoverable energy density of 0.42 mJ/cm³, and an energy-storage efficiency of 27.22%. PFM measurements further verify the piezoelectric character of the crystals and yield a maximum effective piezoresponse coefficient <em>d</em>_<em>33</em> of approximately 451 p.m./V, accompanied by well-defined amplitude and phase hysteresis loops. These results highlight Mn-doped PCMC layered perovskites as promising candidates for next-generation energy-storage and electromechanical conversion devices.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 2","pages":"Article 101118"},"PeriodicalIF":6.8,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laser-induced in-situ carbonization of polystyrene for the facile fabrication of core-shell Fe3O4@LIG magnetic adsorbents with efficient dye removal performance","authors":"Renjun Huang ,&nbsp;Siqian Tang ,&nbsp;Chunlin Liu ,&nbsp;Junfeng Cheng","doi":"10.1016/j.jsamd.2026.101120","DOIUrl":"10.1016/j.jsamd.2026.101120","url":null,"abstract":"<div><div>Adsorption technology plays a vital role in addressing water pollution issues stemming from dyes. Adsorption materials are the key, yet conventional graphene-based adsorbents are constrained by multi-step synthesis, high energy demand, and the use of hazardous etchants. In this study, a straightforward, swift, and eco-friendly laser-induced method is employed to transform commercially available polystyrene and ferroferric oxide into core-shell structured graphene magnetic adsorbents. Graphene provides abundant porous structures and surface adsorption sites, while ferroferric oxide provides magnetic functions. This magnetic adsorbent exhibits excellent adsorption performance for methylene blue solutions, with a saturated adsorption capacity of up to 156 mg/g and good recycling stability. Its adsorption behavior conforms to the pseudo-second-order kinetic model, indicating that chemical adsorption dominates the process, which is mainly synergistically driven by electrostatic attraction, π–π stacking interaction, and hydrogen bonding. The isothermal adsorption data fit the Langmuir model, revealing that it is dominated by uniform monolayer adsorption. This approach not only transcends the constraints of conventional polymer carbonization techniques but also successfully engineers a recyclable system for adsorption and recovery grounded on such methodology. The research also elucidates the mechanism behind polymer in-situ carbonization under laser irradiation, offering a novel approach to the treatment of dye-contaminated wastewater.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 2","pages":"Article 101120"},"PeriodicalIF":6.8,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum transport simulation of 2D B4Cl4 in 5.0 nm node flexible MOSFETs","authors":"Zhanhai Li ,&nbsp;Zhenhua Zhang ,&nbsp;Shengde Liang ,&nbsp;Xun Wang","doi":"10.1016/j.jsamd.2026.101104","DOIUrl":"10.1016/j.jsamd.2026.101104","url":null,"abstract":"<div><div>Flexible electronic devices can retain stable electrical performance under complex deformations, thus offering a key technological pathway for cutting-edge nanoscale electronic systems. However, the precise design of two-dimensional (2D) material-based devices with high bending tolerance and low power (LP) consumption remains a core bottleneck that urgently demands resolution. In this work, we systematically investigate the crystal structure, dynamic stability, intrinsic electronic properties, and quantum transport behavior of monolayer B₄Cl₄ applied in a 5.0 nm process node flexible metal oxide semiconductor field-effect transistor (MOSFET) via the combination of density functional theory and non-equilibrium Green's function method. Results demonstrate that the n-type MOSFETs with transport along the <em>x</em>-direction (<em>x</em>,nMOSFETs) can simultaneously satisfy the core specifications of the international semiconductor technology roadmap (ITRS) for high-performance (HP) and LP devices by 2028. The non-conformally bent dual-gate (DG) <em>x</em>,nMOSFET exhibits excellent bending tolerance, with its maximum on-state current exceeding 98.94% (43.44%) of the ITRS HP (LP) standards. Moreover, its subthreshold swing approaches the 60 mV/dec thermodynamic limit across the entire bending range, and the power-delay product (PDP) of the LP device is merely half of the ITRS benchmark. For the conformally bent DG <em>x</em>,nMOSFET, it can further reduce gate capacitance, intrinsic delay time, and PDP under the same bending amplitude, thereby opening up a new direction for LP device integration. This work not only verifies the unique application advantages of monolayer B₄Cl₄ in 5 nm node flexible HP/LP nanoelectronic devices, but also lays a crucial theoretical foundation for the precise construction of 2D material-based LP flexible devices, and offers insights into the device design paradigm featuring collaborative optimization of multi-structure and multi-bending-mode configurations.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101104"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical microneedle DNA-aptasensor for in vitro theophylline detection supported by molecular docking analysis","authors":"Yeni Wahyuni Hartati ,&nbsp;Serly Zuliska ,&nbsp;Wulan Khaerani ,&nbsp;Irkham ,&nbsp;Jarnuzi Gunlazuardi ,&nbsp;Qonita Kurnia Anjani ,&nbsp;Takeshi Kondo ,&nbsp;Prastika Krisma Jiwanti","doi":"10.1016/j.jsamd.2026.101107","DOIUrl":"10.1016/j.jsamd.2026.101107","url":null,"abstract":"<div><div>An electrochemical aptasensor for theophylline detection was developed by integrating computational analysis, gold nanoparticle–modified screen-printed carbon electrodes (SPCE/AuNP), and hydrogel-forming microneedles. Molecular docking and molecular dynamics simulations confirmed the preferential and stable binding of the DNA aptamer to theophylline within a conserved stem–loop region, providing a molecular basis for selectivity. AuNP modification significantly enhanced electron-transfer kinetics and electroactive surface area, enabling sensitive signal transduction. The aptasensor exhibited a linear response over the range of 10–1000 μM with a detection limit of 0.39 μM and high reproducibility (RSD 1.59 %). Excellent selectivity was observed against common interferents. Integration with hydrogel microneedles enabled the detection of theophylline in spiked human blood, achieving a detection limit of 0.29 μM and satisfactory recovery. These results demonstrate the potential of the developed microneedle-assisted aptasensor as a minimally invasive platform for therapeutic drug monitoring of theophylline.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101107"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical sensor based on MXene-Gr for highly sensitive detection of nitrofurazone in seawater","authors":"Jianlei Chen ,&nbsp;Tianruo Zhang ,&nbsp;Yun Zhou ,&nbsp;Yong Xu","doi":"10.1016/j.jsamd.2025.101095","DOIUrl":"10.1016/j.jsamd.2025.101095","url":null,"abstract":"<div><div>In this study, a highly sensitive electrochemical sensor was developed for the detection of nitrofurazone (NFZ) in seawater using a glassy carbon electrode modified with a nanocomposite of MXene and graphene (Gr). The synergistic effect of MXene and Gr significantly enhanced the electron transfer rate and active surface area of the electrode. Key parameters, including modifier volume, activation cycles, and solution pH, were optimized to achieve optimal sensor performance. Under the optimized conditions, the sensor exhibited a wide linear detection range from 1 to 70 μmol/L. The sensor also demonstrated excellent repeatability, stability, and selectivity against common antibiotic interferents. When applied to spiked seawater samples, recovery rates ranged from 96.01 % to 102.16 % with a relative standard deviation below 1.3 %. The MXene–Gr-based sensor not only provides a reliable tool for on-site monitoring of antibiotic residues in marine environments but also demonstrates the great potential of MXene-based composites in the development of advanced electrochemical biosensing platforms for environmental and food safety applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101095"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene oxide nanoparticle-infused metamaterial sensor for low permittivity characterization","authors":"Md.Bakey Billa ,&nbsp;Mohammad Tariqul Islam ,&nbsp;Touhidul Alam ,&nbsp;Mandeep Singh ,&nbsp;Mohamed Ouda ,&nbsp;Abdulmajeed M. Alenezi ,&nbsp;Mohamad A. Alawad","doi":"10.1016/j.jsamd.2026.101101","DOIUrl":"10.1016/j.jsamd.2026.101101","url":null,"abstract":"<div><div>Accurate characterization of low-permittivity materials is essential for advancing high-frequency electronics, novel substrates, and microwave sensing systems. However, conventional methods often suffer from bulkiness, limited sensitivity, or complex measurement processes. To overcome these limitations, an innovative graphene oxide nanoparticle-infused metamaterial sensor specifically engineered for low-permittivity detection. The sensor comprises a hybrid circular and square split-ring resonator (SRRs) fabricated using 0.035 mm conductive copper tape on a graphene oxide substrate, enabling tunable resistive properties and enhanced electromagnetic confinement. The sensor is experimentally measured in an X-band waveguide system with TRL calibration from 8 to 10 GHz. The sensor exhibits a strong agreement between simulated and measured S₂₁ responses, with a resonance shift from 8.592 GHz <em>(ε = 1</em>) to 8.36 GHz (<em>ε = 3.66</em>), and a relative error consistently below 1 %. Effective medium analysis reveals that the metamaterial exhibits negative permittivity (<em>ε &lt; 0</em>) and permeability (<em>μ&lt; 0</em>) at resonance, confirming its left-handed metamaterial behavior. The surface current, electric field, and magnetic field distributions show strong localization at the resonator gaps, contributing to enhanced sensing performance. A linear regression model between dielectric constant and resonance frequency shift (<em>Δf</em>) is developed with a coefficient of determination R² = 0.908, and the derived model exhibits a maximum absolute error under 2 %. The measured sensitivity reached up to 140.3 MHz/Δε for <em>ε</em> = 1.57, demonstrating superior performance in low-ε characterization compared to traditional sensors. The combination of metamaterial-inspired resonance behavior, tunable graphene conductivity, and analytical modeling enables this sensor to serve as an efficient, low-cost, and highly sensitive platform for dielectric characterization.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101101"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}