Materials Today Electronics最新文献_第2页

Humidity sensors for wearable health monitoring and human-machine interaction 用于穿戴式健康监测和人机交互的湿度传感器

Materials Today Electronics Pub Date : 2025-07-16 DOI: 10.1016/j.mtelec.2025.100167

Xin Liu , Cong Xiao , Huabin Yang , Qirui Zhang , Na Zhou , Haiyang Mao

{"title":"Humidity sensors for wearable health monitoring and human-machine interaction","authors":"Xin Liu , Cong Xiao , Huabin Yang , Qirui Zhang , Na Zhou , Haiyang Mao","doi":"10.1016/j.mtelec.2025.100167","DOIUrl":"10.1016/j.mtelec.2025.100167","url":null,"abstract":"<div><div>With the rapid development of wearable technology, humidity sensors have become increasingly important in the fields of health monitoring and human-machine interaction. This paper reviews the latest advancements in humidity sensors for wearable health applications, highlighting their applications in key areas such as breath monitoring, emotion recognition, diaper monitoring, and skin moisture detection. Due to their simple structure, high sensitivity, and non-contact detection capabilities, humidity sensors are gradually becoming a core technology for achieving real-time health monitoring and intelligent interaction. We provide an overview of the material innovations and development directions in current humidity sensor technology. Additionally, we systematically discuss the significance of humidity sensors in dynamic physiological signal monitoring and their potential applications in smart healthcare, sports training, emotion recognition, and non-contact interaction. Despite the broad prospects of humidity sensors in various applications, they still face several specific challenges. Finally, this paper proposes future research directions, calling for in-depth exploration of material innovations, system integration, and intelligent applications of humidity sensors to promote the development of personalized healthcare and smart health management.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"13 ","pages":"Article 100167"},"PeriodicalIF":0.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals 高纯度多晶补偿金属的大各向异性磁热开关

Materials Today Electronics Pub Date : 2025-07-12 DOI: 10.1016/j.mtelec.2025.100165

Poonam Rani , Yuto Watanabe , Takuma Shiga , Yuya Sakuraba , Hikaru Takeda , Minoru Yamashita , Ken-ichi Uchida , Aichi Yamashita , Yoshikazu Mizuguchi

{"title":"Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals","authors":"Poonam Rani , Yuto Watanabe , Takuma Shiga , Yuya Sakuraba , Hikaru Takeda , Minoru Yamashita , Ken-ichi Uchida , Aichi Yamashita , Yoshikazu Mizuguchi","doi":"10.1016/j.mtelec.2025.100165","DOIUrl":"10.1016/j.mtelec.2025.100165","url":null,"abstract":"<div><div>Magneto-thermal transport is a promising physical property for thermal management applications. Magneto-thermal switching enables active control of heat flows, and a high switching ratio is desirable for improving performance. Here, we report on the observation of a huge magneto-thermal switching (MTS) effect in high-purity (5 N) Pb polycrystalline wires, where magnetic fields perpendicular to the heat current direction are applied at low temperatures. At <em>T</em> = 3 K and <em>B</em> = 0.1 T, the measured thermal conductivity (<em>κ</em>) of the Pb wire is about 2500 W m<sup>-1</sup> K<sup>-1</sup> but is reduced to ∼150 and ∼5 W m<sup>-1</sup> K<sup>-1</sup> at <em>B</em> = 1 and 9 T, respectively. This strong suppression is attributed to magnetoresistance in compensated metals. Although the huge magnetoresistance has been studied in single crystals with field along the selected orbitals, our results demonstrate that a huge MTS can similarly be realized even in flexible polycrystalline wires. This finding highlights the practical potential of magneto-thermal control in low-temperature thermal management, including applications in space environments where temperatures are around 3 K.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"13 ","pages":"Article 100165"},"PeriodicalIF":0.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MXene-enhanced hydrogel cardiac patch with high electrical conductivity, mechanical strength, and excellent biocompatibility mxene增强水凝胶心脏贴片具有高导电性、机械强度和优异的生物相容性

Materials Today Electronics Pub Date : 2025-06-30 DOI: 10.1016/j.mtelec.2025.100163

Fei Wang , Fuying Liang , Qi Chen , Jingcheng Huang , Xi Wang , Wei Cheng , Jizhai Cui , Fan Xu , Yongfeng Mei , Xiaojun Wu , Enming Song

引用次数: 0

Accelerated discovery of vanadium oxide compositions: A WGAN-VAE framework for materials design 钒氧化物成分的加速发现：材料设计的WGAN-VAE框架

Materials Today Electronics Pub Date : 2025-06-25 DOI: 10.1016/j.mtelec.2025.100155

Danial Ebrahimzadeh, Sarah S. Sharif, Yaser M. Banad

{"title":"Accelerated discovery of vanadium oxide compositions: A WGAN-VAE framework for materials design","authors":"Danial Ebrahimzadeh, Sarah S. Sharif, Yaser M. Banad","doi":"10.1016/j.mtelec.2025.100155","DOIUrl":"10.1016/j.mtelec.2025.100155","url":null,"abstract":"<div><div>The discovery of novel materials with tailored electronic properties is crucial for modern device technologies, but time-consuming empirical methods hamper progress. We present an inverse design framework combining an enhanced Wasserstein Generative Adversarial Network (WGAN) with a specialized Variational Autoencoder (VAE) to accelerate the discovery of stable vanadium oxide (V–O) compositions. Our approach features (1) a WGAN with integrated stability constraints and formation energy predictions, enabling direct generation of thermodynamically feasible structures, and (2) a refined VAE capturing atomic positions and lattice parameters while maintaining chemical validity. Applying this framework, we generated 451 unique V–O compositions, with 91 stable and 44 metastable under rigorous thermodynamic criteria. Notably, we uncovered several novel V<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> configurations with formation energies below the Materials Project convex hull, revealing previously unknown stable phases. Detailed spin-polarized DFT+U calculations showed distinct electronic behaviors, including promising half-metallic characteristics. Our approach outperforms existing methods in both quality and stability, demonstrating about 20<span><math><mtext>%</mtext></math></span> stability rate under strict criteria compared to earlier benchmarks. Additionally, phonon calculations performed on selected compositions confirm dynamic stability: minor imaginary modes at 0 K likely stem from finite-size effects or known phase transitions, suggesting that these materials remain stable or metastable in practical conditions. These findings establish our framework as a powerful tool for accelerated materials discovery and highlight promising V–O candidates for next-generation electronic devices.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"13 ","pages":"Article 100155"},"PeriodicalIF":0.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wideband photoelectric detector based on SnSb2Te4 single crystal at room temperature 基于SnSb2Te4单晶的室温宽带光电探测器

Materials Today Electronics Pub Date : 2025-06-19 DOI: 10.1016/j.mtelec.2025.100158

Jinjie Lu , Qiyuan Zhang , Niangjuan Yao , Siyuan Lei , Yingjian Ren , Chengyu Leng , Yanqing Gao , Wei Zhou , Lin Jiang , Zhiming Huang , Junhao Chu

{"title":"Wideband photoelectric detector based on SnSb2Te4 single crystal at room temperature","authors":"Jinjie Lu , Qiyuan Zhang , Niangjuan Yao , Siyuan Lei , Yingjian Ren , Chengyu Leng , Yanqing Gao , Wei Zhou , Lin Jiang , Zhiming Huang , Junhao Chu","doi":"10.1016/j.mtelec.2025.100158","DOIUrl":"10.1016/j.mtelec.2025.100158","url":null,"abstract":"<div><div>Terahertz (THz) wave, as the transition region between microwave and infrared light in the electromagnetic spectrum, shows unique technical advantages in the fields such as high-speed communication, biomedical imaging, astronomical spectral analysis, and non-destructive security inspection. However, THz detection faces key technological bottlenecks due to the factors of unmatched material bandgap, serious dark current, and low absorption. In this study, high quality of SnSb<sub>2</sub>Te<sub>4</sub> single crystal was prepared by chemical vapor transport (CVT) and wide-spectrum photo detectors were fabricated from visible light to THz wave at room temperature with high responsivities of 16,162, 8077, and 3434 A W<sup>-1</sup> at characteristic frequencies of 0.0249 THz, 0.346 THz, and 0.509 THz, respectively, as well as ultra-low noise equivalent power of 7.33 fW Hz<sup>-1/2</sup> and fast response time of 12 μs. Our results demonstrate that SnSb<sub>2</sub>Te<sub>4</sub>-based photoelectric detectors have significant application prospects in the next generation of wide-spectrum optoelectronic devices.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"13 ","pages":"Article 100158"},"PeriodicalIF":0.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Innovations in metamaterial and metasurface antenna design: The role of deep learning 超材料和超表面天线设计的创新：深度学习的作用

Materials Today Electronics Pub Date : 2025-06-13 DOI: 10.1016/j.mtelec.2025.100162

Muhammad Kamran Shereen , Xiaoguang Liu , Xiaohu Wu , Salah Ud Din , Ayesha Naseem , Shehryar Niazi , Muhammad Irfan Khattak

{"title":"Innovations in metamaterial and metasurface antenna design: The role of deep learning","authors":"Muhammad Kamran Shereen , Xiaoguang Liu , Xiaohu Wu , Salah Ud Din , Ayesha Naseem , Shehryar Niazi , Muhammad Irfan Khattak","doi":"10.1016/j.mtelec.2025.100162","DOIUrl":"10.1016/j.mtelec.2025.100162","url":null,"abstract":"<div><div>Metamaterials and metasurfaces have revolutionized antenna design by enabling unprecedented control over electromagnetic waves. This paper explores integrating deep learning (DL) techniques in designing and optimizing metamaterial and metasurface antennas, focusing on improvements in gain, bandwidth, and size reduction. The review considers modern methodologies, such as hybrid optimization techniques with DL combined with traditional methods such as genetic algorithms and evolutionary strategies. It also addresses the use of high-fidelity datasets generated from advanced simulations to train DL models for more efficient antenna design. The paper is structured into five main sections: an introduction to metamaterials and metasurfaces, a discussion on their electromagnetic behavior, a classification of different types, an overview of deep learning applications in antenna design, and a conclusion summarizing the current advances, challenges, and future directions. By emphasizing the potential of DL to streamline the design process and enhance antenna performance, this paper provides a valuable foundation for future research in electromagnetic metasurfaces.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"13 ","pages":"Article 100162"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance organic synaptic transistors for multi-wavelength perception simulation and neuromorphic computing 用于多波长感知模拟和神经形态计算的高性能有机突触晶体管

Materials Today Electronics Pub Date : 2025-06-13 DOI: 10.1016/j.mtelec.2025.100164

Yujiao Li , Shanshan Jiang , Bo He , Bingyan Wang , Jiawei Yang , Huanhuan Wei , Can Fu , Gang He

{"title":"High-performance organic synaptic transistors for multi-wavelength perception simulation and neuromorphic computing","authors":"Yujiao Li , Shanshan Jiang , Bo He , Bingyan Wang , Jiawei Yang , Huanhuan Wei , Can Fu , Gang He","doi":"10.1016/j.mtelec.2025.100164","DOIUrl":"10.1016/j.mtelec.2025.100164","url":null,"abstract":"<div><div>Inspired by biological neuromorphic systems, biomimetic artificial synaptic devices based on organic transistors have become a prominent research direction. The polymer PDVT-10, which is commonly used as channel layer in devices, has excellent stability and high mobility. However, previous research in simulating photonic synapses has focused on doping and hybrid structures, which is limited by the choice of materials and complex fabrication processes in exploring the multifunctional applications of photonic synaptic devices in the future. Here, we successfully constructed individual PDVT-10 photoelectric synaptic devices to simulate biological synaptic plasticity under different wavelengths of light pulse stimulation for the first time. Furthermore, the application of light-induced high-pass filtering characteristics, pain sensing, sensitization, as well as memory functions were realized. In addition, the application of logic circuits was realized based on the photoelectric synergistic effect. Moreover, the introduction of a polyvinyl alcohol light-absorbing layer endowed the device with light potentiation and electrical depression function. Subsequently, a simple convolutional neural network was successfully constructed and implemented for the MNIST number recognition task. This work not only contributes to an in-depth understanding of the response mechanism of the device to different wavelengths of light, but also enriches the application areas of the device and provides important support for the practical applications of neuromorphic computing in the future.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"13 ","pages":"Article 100164"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of high-speed gallium oxynitride nanowires based ultraviolet photodetectors by chemical vapour deposition technique: a facile approach 化学气相沉积技术制备高速氧化氮化镓纳米线紫外探测器的简易方法

Materials Today Electronics Pub Date : 2025-06-01 DOI: 10.1016/j.mtelec.2025.100150

Sanjay Sankaranarayanan , Prabakaran Kandasamy , Niraj Kumar , Kandasamy Muthusamy , Rameshkumar Perumal , Saravanan Gengan

{"title":"Development of high-speed gallium oxynitride nanowires based ultraviolet photodetectors by chemical vapour deposition technique: a facile approach","authors":"Sanjay Sankaranarayanan , Prabakaran Kandasamy , Niraj Kumar , Kandasamy Muthusamy , Rameshkumar Perumal , Saravanan Gengan","doi":"10.1016/j.mtelec.2025.100150","DOIUrl":"10.1016/j.mtelec.2025.100150","url":null,"abstract":"<div><div>Gallium oxynitride nanowires (GaON NWs) based ultraviolet photodetectors (UV PDs) with tunable bandgap and superior response speed is demonstrated by nitridation process in a chemical vapour deposition system. Growth rate and density of the NWs are greatly influenced by the synthesis time. With increase in growth time from 60 to 100 min, nitrogen composition in the samples increased and oxygen composition decreased, resulting in bandgap tunability from 4.63 to 4.21 eV. As an effect of bandgap tunability and dimensionality shrinkage, valence band maximum gets lifted–up due to the hybridization of O<sub>2p</sub> and N<sub>2p</sub> states. The fabricated GaON PDs with an appropriate nitrogen composition demonstrate significant reduction in the dark current and a faster response time of 106 µs. Oxygen vacancies get suppressed by the alteration in valence band maximum, resulting in reduced photoconductive trapping effect and enhanced response speed. When nitrogen is introduced, the probability of photoexcited charge carrier recombination increase, resulting in poor photoresponsivity. Thus, varying the nitrogen composition, bandgap tunability is achieved which suppresses charge carriers trapping in GaON. This methodology provides an alternate approach to develop high-speed ultraviolet photodetectors.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"12 ","pages":"Article 100150"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large terahertz nonlinearity in two-dimensional electron gas metasurface 二维电子气体超表面的大太赫兹非线性

Materials Today Electronics Pub Date : 2025-05-13 DOI: 10.1016/j.mtelec.2025.100157

Kaixin Yu , Chen Wang , Yongzheng Wen , Yong Tan , Shiqiang Zhao , Renfei Zhang , Jingbo Sun , Ji Zhou

{"title":"Large terahertz nonlinearity in two-dimensional electron gas metasurface","authors":"Kaixin Yu , Chen Wang , Yongzheng Wen , Yong Tan , Shiqiang Zhao , Renfei Zhang , Jingbo Sun , Ji Zhou","doi":"10.1016/j.mtelec.2025.100157","DOIUrl":"10.1016/j.mtelec.2025.100157","url":null,"abstract":"<div><div>Nonlinear responses in the terahertz (THz) frequency range are essential for advancing THz sources and modulators. However, the development of THz nonlinear materials with efficient second- and third-order nonlinear susceptibilities at room temperature remains challenging. Here, we introduce a THz nonlinear metasurface based on gallium nitride two-dimensional electron gas (2DEG), capable of both second harmonic generation (SHG) and third harmonic generation (THG). By leveraging the magneto-electric coupling mechanism built in the metasurface, we induce anharmonic oscillations of electrons to achieve THz SHG with the effective second-order nonlinear susceptibility reaching 14.3 μm V<sup>-1</sup>. Meanwhile, the localized electric field confinements in the same metasurface structure substantially improve the intrinsic third-order nonlinearity of the 2DEG as well, enhancing the THz THG by over two orders of magnitude. By simply scaling the structure of the metasurface, the working frequency of the intense nonlinear responses can be engineered at will. Our results provide a promising route to efficient THz second- and third-order nonlinearities within a single metasurface, which may open new pathways for developing highly integrated, room-temperature THz sources, as well as further advancements in high-speed electronics.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"12 ","pages":"Article 100157"},"PeriodicalIF":0.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal transport in magnetic materials: A review 磁性材料中的热输运：综述

Materials Today Electronics Pub Date : 2025-05-07 DOI: 10.1016/j.mtelec.2025.100156

Shuchen Li , Shucheng Guo , Thomas Hoke, Xi Chen

{"title":"Thermal transport in magnetic materials: A review","authors":"Shuchen Li , Shucheng Guo , Thomas Hoke, Xi Chen","doi":"10.1016/j.mtelec.2025.100156","DOIUrl":"10.1016/j.mtelec.2025.100156","url":null,"abstract":"<div><div>Thermal transport in magnetic materials has become a pivotal research area due to its fundamental importance and potential applications in thermal management, spintronics, and energy conversion technologies. Beyond conventional heat carriers such as phonons and electrons, magnetic excitations—including magnons and spinons—play a substantial role in heat transport within these materials. Their transport behaviors are influenced by factors such as dimensionality, defects, magnetic structures, and external stimuli like magnetic and electric fields. Additionally, the coupling of magnetic excitations with phonons or electrons is critical in modulating the thermal properties of magnetic materials. This review provides a comprehensive overview of thermal transport mechanisms in magnetic materials, with a focus on magnetic excitations. Recent advancements reveal intriguing behaviors, including ballistic magnetic thermal transport, size-dependent thermal transport, and the impact of various scattering processes on thermal conductivity. Furthermore, external magnetic and electric fields have been shown to manipulate thermal conductivity by modifying magnetic dispersion, spin configurations, and scattering processes. These findings open a new pathway for controlling heat flow in magnetic systems. This review highlights the important role of thermal transport studies in advancing our understanding of magnetic materials and offers valuable insights into the development of functional thermal devices utilizing these materials.</div></div>","PeriodicalId":100893,"journal":{"name":"Materials Today Electronics","volume":"12 ","pages":"Article 100156"},"PeriodicalIF":0.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0