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On-Chip Micro Temperature Controllers Based on Freestanding Thermoelectric Nano Films for Low-Power Electronics 被引量:1
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作者 Qun Jin Tianxiao Guo +4 位作者 Nicolas Perez Nianjun Yang Xin Jiang Kornelius Nielsch Heiko Reith 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第7期98-108,共11页
Multidimensional integration and multifunctional com-ponent assembly have been greatly explored in recent years to extend Moore’s Law of modern microelectronics.However,this inevitably exac-erbates the inhomogeneity ... Multidimensional integration and multifunctional com-ponent assembly have been greatly explored in recent years to extend Moore’s Law of modern microelectronics.However,this inevitably exac-erbates the inhomogeneity of temperature distribution in microsystems,making precise temperature control for electronic components extremely challenging.Herein,we report an on-chip micro temperature controller including a pair of thermoelectric legs with a total area of 50×50μm^(2),which are fabricated from dense and flat freestanding Bi2Te3-based ther-moelectric nano films deposited on a newly developed nano graphene oxide membrane substrate.Its tunable equivalent thermal resistance is controlled by electrical currents to achieve energy-efficient temperature control for low-power electronics.A large cooling temperature difference of 44.5 K at 380 K is achieved with a power consumption of only 445μW,resulting in an ultrahigh temperature control capability over 100 K mW^(-1).Moreover,an ultra-fast cooling rate exceeding 2000 K s^(-1) and excellent reliability of up to 1 million cycles are observed.Our proposed on-chip temperature controller is expected to enable further miniaturization and multifunctional integration on a single chip for microelectronics. 展开更多
关键词 Temperature control low-power electronics On-chip micro temperature controller Freestanding thermoelectric nano films Temperature-sensitive components
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Prototype of front-end electronics based on FPGA-ADC for TOF PET detector applications
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作者 Song-Qing Liu Bo Wang +2 位作者 Wei-Wei Xu Xin-Sheng Wang Kun Hu 《Nuclear Science and Techniques》 2026年第2期134-142,共9页
Traditional digitizers for signal readout of PET detectors are based on commercial analog-to-digital converters(ADC).However,the cost and power consumption of an entire electronic readout system based on digitizers fo... Traditional digitizers for signal readout of PET detectors are based on commercial analog-to-digital converters(ADC).However,the cost and power consumption of an entire electronic readout system based on digitizers for a PET scanner are high.To address this problem,a soft-core ADC based on a field-programmable gate array(FPGA)was proposed.An FPGA-based ADC(FPGA-ADC)combines low loss and high performance.To achieve good performance,the FPGA-ADC requires three calibrations:time-to-digital converter(TDC)length calibration,TDC alignment calibration,and TDC-to-ADC calibration.A prototype front-end electronics based on FPGA-ADC was built to evaluate the performance of time-of-flight positron emission tomography(TOF PET)detectors.Each PET detector consists of a LYSO crystal single-ended coupled to a silicon photomultiplier(SiPM).The experimental results show that the full-width at half-maximum(FWHM)energy resolution for 511 keV gamma photons after saturation correction of the SiPM was 12.3%.The FWHM coincidence timing resolution(CTR)of the TOF PET detector with the readout of the front-end electronic prototype is 385.2 ps.FPGA-ADCbased front-end electronics are very promising for multichannel,low-cost,highly integrated,and power-efficient readout electronic systems for radiation detector applications. 展开更多
关键词 Front-end electronics Analog-to-digital converter Radiation detector PET FPGA
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Robust and Biodegradable Heterogeneous Electronics with Customizable Cylindrical Architecture for Interference-Free Respiratory Rate Monitoring
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作者 Jing Zhang Wenqi Wang +9 位作者 Sanwei Hao Hongnan Zhu Chao Wang Zhouyang Hu Yaru Yu Fangqing Wang Peng Fu Changyou Shao Jun Yang Hailin Cong 《Nano-Micro Letters》 2026年第1期914-934,共21页
A rapidly growing field is piezoresistive sensor for accurate respiration rate monitoring to suppress the worldwide respiratory illness.However,a large neglected issue is the sensing durability and accuracy without in... A rapidly growing field is piezoresistive sensor for accurate respiration rate monitoring to suppress the worldwide respiratory illness.However,a large neglected issue is the sensing durability and accuracy without interference since the expiratory pressure always coupled with external humidity and temperature variations,as well as mechanical motion artifacts.Herein,a robust and biodegradable piezoresistive sensor is reported that consists of heterogeneous MXene/cellulose-gelation sensing layer and Ag-based interdigital electrode,featuring customizable cylindrical interface arrangement and compact hierarchical laminated architecture for collectively regulating the piezoresistive response and mechanical robustness,thereby realizing the long-term breath-induced pressure detection.Notably,molecular dynamics simulations reveal the frequent angle inversion and reorientation of MXene/cellulose in vacuum filtration,driven by shear forces and interfacial interactions,which facilitate the establishment of hydrogen bonds and optimize the architecture design in sensing layer.The resultant sensor delivers unprecedented collection features of superior stability for off-axis deformation(0-120°,~2.8×10^(-3) A)and sensing accuracy without crosstalk(humidity 50%-100%and temperature 30-80).Besides,the sensor-embedded mask together with machine learning models is achieved to train and classify the respiration status for volunteers with different ages(average prediction accuracy~90%).It is envisioned that the customizable architecture design and sensor paradigm will shed light on the advanced stability of sustainable electronics and pave the way for the commercial application in respiratory monitory. 展开更多
关键词 Wearable electronics Piezoresistive sensor HETEROGENEOUS CELLULOSE Respiratory monitoring
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Eco-friendly composite supercritical purification enables simultaneous lightweighting and strengthening of reed membranes for bioelectronics
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作者 Boyi Cheng Yu Jiang +3 位作者 Lei Li Mingge Wang Jie Wang Kuan-Chang Chang 《Science China Materials》 2026年第3期1741-1750,共10页
Reed membrane,a natural cellulosic material traditionally used in musical instruments,holds promise in flexible electronics due to its abundance,low cost,and excellent biocompatibility.However,its native form contains... Reed membrane,a natural cellulosic material traditionally used in musical instruments,holds promise in flexible electronics due to its abundance,low cost,and excellent biocompatibility.However,its native form contains water-soluble ions and lipid-soluble waxes that hinder performance in acoustic and electronics by compromising electrical insulation and mechanical stability.Here,supercritical fluid superposition purification(SCSP-WA)is introduced,which utilizes supercritical CO_(2)with water and acetone as bipolar co-solvents to selectively remove these impurities.Post-SCSP-WA treatment,the reed membrane exhibits significant enhancements in mechanical strength and electrical insulation,achieving a 4-fold increase in elongation at break,improved tensile strength and Young’s modulus,and a 98.5%reduction in leakage current,all while maintaining low and stable capacitance.These improvements stem from the restructuring of the fibrous network into a porous,interconnected microstructure.Material characterization(X-ray photoelectron spectroscopy(XPS),Fourier-transform infrared spectroscopy(FTIR),and scanning electron microscopy(SEM))confirmed the effective removal of magnesium and waxy functional groups,along with enhanced fiber crosslinking.Cytotoxicity tests further validated the biocompatibility of the SCSP-WA-treated membranes.This environmentally sustainable approach expands the potential of reed membranes in flexible bioelectronics and bio-integrated acoustic systems. 展开更多
关键词 reed membrane supercritical fluid purification BIOCOMPATIBILITY lightweight flexible electronics
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Surface-confined metallization of nanofibrous networks via selective dissolution-assisted transfer printing for lightweight and air-permeable soft electronics
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作者 Weiyan Li Zhongqian Song +6 位作者 Xiyue Zhang Huijun Kong Cuiyu Liu Xue Li Xiaotong Sun Zhaofu Zhang Li Niu 《Science China Materials》 2026年第3期1600-1612,共13页
Air-permeable and ultrathin conductive electrodes are essential for next-generation soft electronics,including breathable wearables,on-skin devices and biointegrated electronics.However,conventional metallization stra... Air-permeable and ultrathin conductive electrodes are essential for next-generation soft electronics,including breathable wearables,on-skin devices and biointegrated electronics.However,conventional metallization strategies,such as sputtering and ink-printing,often suffer from severe vertical charge leakage due to the porous and ultrathin characteristics of nanofibrous networks,leading to device short-circuiting,operational failure and limited vertical integration.Here,we present a solvent-selective dissolutionassisted transfer printing strategy to achieve surface-confined metallization of ultrathin,lightweight,and gas-permeable nanofibrous networks,enabling lateral conductivity while maintaining vertical insulation.This transfer printing process facilitates not only the rapid formation of conductive patterns on the surface of nanofibrous networks but also mechanical reinforcement through solvent evaporation-induced interlocked fiber-fiber welding.Meanwhile,the strategy preserves the high permeability of the nanofibrous networks and imparts a unique combination of surface conductivity(2Ωcm)and vertical insulativity(10^(11)Ωcm).The resulting anisotropic conductive networks enable low-voltage wearable heaters,high-sensitive pressure sensors,and ultralight temperature sensors.A pressure-temperature dual-modal sensing patch is further fabricated for intelligent grasping classification.The proposed surface-confined metallization strategy enables rapid fabrication of an anisotropic conductive network as a building block to construct air-permeable,ultrathin and lightweight wearable electronics. 展开更多
关键词 surface-confined metallization electrospun electrodes conductive nanomesh transfer printing soft electronics
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On-Skin Epidermal Electronics for Next-Generation Health Management
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作者 Jinbin Xu Xiaoliang Chen +7 位作者 Sheng Li Yizhuo Luo Shizheng Deng Bo Yang Jian Lv Hongmiao Tian Xiangming Li Jinyou Shao 《Nano-Micro Letters》 2026年第1期609-646,共38页
Continuous monitoring of biosignals is essential for advancing early disease detection,personalized treatment,and health management.Flexible electronics,capable of accurately monitoring biosignals in daily life,have g... Continuous monitoring of biosignals is essential for advancing early disease detection,personalized treatment,and health management.Flexible electronics,capable of accurately monitoring biosignals in daily life,have garnered considerable attention due to their softness,conformability,and biocompatibility.However,several challenges remain,including imperfect skin-device interfaces,limited breathability,and insufficient mechanoelectrical stability.On-skin epidermal electronics,distinguished by their excellent conformability,breathability,and mechanoelectrical robustness,offer a promising solution for high-fidelity,long-term health monitoring.These devices can seamlessly integrate with the human body,leading to transformative advancements in future personalized healthcare.This review provides a systematic examination of recent advancements in on-skin epidermal electronics,with particular emphasis on critical aspects including material science,structural design,desired properties,and practical applications.We explore various materials,considering their properties and the corresponding structural designs developed to construct high-performance epidermal electronics.We then discuss different approaches for achieving the desired device properties necessary for long-term health monitoring,including adhesiveness,breathability,and mechanoelectrical stability.Additionally,we summarize the diverse applications of these devices in monitoring biophysical and physiological signals.Finally,we address the challenges facing these devices and outline future prospects,offering insights into the ongoing development of on-skin epidermal electronics for long-term health monitoring. 展开更多
关键词 On-skin epidermal electronics ADHESIVENESS Breathability Mechanoelectrical stability Long-term biosignal monitoring
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Dynamic Network‑and Microcellular Architecture‑Driven Biomass Elastomer toward Sustainable and Versatile Soft Electronics
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作者 Shanqiu Liu Yi Shen +5 位作者 Yizhen Li Yunjie Mo Enze Yu Taotao Ge Ping Li Jingguo Li 《Nano-Micro Letters》 2026年第3期368-387,共20页
Conductive elastomers combining micromechanical sensitivity,lightweight adaptability,and environmental sustainability are critically needed for advanced flexible electronics requiring precise responsiveness and long-t... Conductive elastomers combining micromechanical sensitivity,lightweight adaptability,and environmental sustainability are critically needed for advanced flexible electronics requiring precise responsiveness and long-term wearability;however,the integration of these properties remains a significant challenge.Here,we present a biomass-derived conductive elastomer featuring a rationally engineered dynamic crosslinked network integrated with a tunable microporous architecture.This structural design imparts pronounced micromechanical sensitivity,an ultralow density(~0.25 g cm^(−3)),and superior mechanical compliance for adaptive deformation.Moreover,the unique micro-spring effect derived from the porous architecture ensures exceptional stretchability(>500%elongation at break)and superior resilience,delivering immediate and stable electrical response under both subtle(<1%)and large(>200%)mechanical stimuli.Intrinsic dynamic interactions endow the elastomer with efficient room temperature self-healing and complete recyclability without compromising performance.First-principles simulations clarify the mechanisms behind micropore formation and the resulting functionality.Beyond its facile and mild fabrication process,this work establishes a scalable route toward high-performance,sustainable conductive elastomers tailored for next-generation soft electronics. 展开更多
关键词 Bio-based conductive elastomers Dynamic covalent chemistry Micromechanical sensitivity Soft electronics
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Phase-change heterostructure with HfTe_(2)confinement sublayers for enhanced thermal efficiency and low-power operation through Joule heating localization 被引量:1
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作者 S.W.Park H.J.Lee +6 位作者 K.A.Nirmal T.H.Kim D.H.Kim J.Y.Choi J.S.Oh J.M.Joo T.G.Kim 《Journal of Materials Science & Technology》 2025年第1期104-114,共11页
Although phase-change random-access memory(PCRAM)is a promising next-generation nonvolatile memory technology,challenges remain in terms of reducing energy consumption.This is primarily be-cause the high thermal condu... Although phase-change random-access memory(PCRAM)is a promising next-generation nonvolatile memory technology,challenges remain in terms of reducing energy consumption.This is primarily be-cause the high thermal conductivities of phase-change materials(PCMs)promote Joule heating dissi-pation.Repeated phase transitions also induce long-range atomic diffusion,limiting the durability.To address these challenges,phase-change heterostructure(PCH)devices that incorporate confinement sub-layers based on transition-metal dichalcogenide materials have been developed.In this study,we engi-neered a PCH device by integrating HfTe_(2),which has low thermal conductivity and excellent stability,into the PCM to realize PCRAM with enhanced thermal efficiency and structural stability.HEAT sim-ulations were conducted to validate the superior heat confinement in the programming region of the HfTe_(2)-based PCH device.Moreover,electrical measurements of the device demonstrated its outstanding performance,which was characterized by a low RESET current(∼1.6 mA),stable two-order ON/OFF ratio,and exceptional cycling endurance(∼2×10^(7)).The structural integrity of the HfTe_(2)confinement sub-layer was confirmed using X-ray photoelectron spectroscopy and transmission electron microscopy.The material properties,including electrical conductivity,cohesive energy,and electronegativity,substantiated these findings.Collectively,these results revealed that the HfTe_(2)-based PCH device can achieve significant improvements in performance and reliability compared with conventional PCRAM devices. 展开更多
关键词 Phase-change random-access memory Phase-change heterostructure Thermal efficiency Thermal stability low-power operation
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F-norm based low-power motion recognition on wearable devices in the presence of outlier motions
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作者 Yin Long Hongbin Xu Yang Xiang 《Digital Communications and Networks》 2025年第6期1897-1907,共11页
Motion recognition refers to the intelligent recognition of human motion using data collected from wearable sensors,which exceedingly has gained significant interest from both academic and industrial fields.However,te... Motion recognition refers to the intelligent recognition of human motion using data collected from wearable sensors,which exceedingly has gained significant interest from both academic and industrial fields.However,temporary-sudden activities caused by accidental behavior pose a major challenge to motion recognition and have been largely overlooked in existing works.To address this problem,the multi-dimensional time series of motion data is modeled as a Time-Frequency(TF)tensor,and the original challenge is transformed into a problem of outlier-corrupted tensor pattern recognition,where transient sudden activity data are considered as outliers.Since the TF tensor can capture the latent spatio-temporal correlations of the motion data,the tensor MPCA is used to derive the principal spatio-temporal pattern of the motion data.However,traditional MPCA uses the squared F-norm as the projection distance measure,which makes it sensitive to the presence of outlier motion data.Therefore,in the proposed outlier-robust MPCA scheme,the F-norm with the desirable geometric properties is used as the distance measure to simultaneously mitigate the interference of outlier motion data while preserving rotational invariance.Moreover,to reduce the complexity of outlier-robust motion recognition,we impose the proposed outlier-robust MPCA scheme on the traditional MPCANet which is a low-complexity deep learning network.The experimental results show that our proposed outlier-robust MPCANet can simultaneously improve motion recognition performance and reduce the complexity,especially in practical scenarios where the real-time data is corrupted by temporary-sudden activities. 展开更多
关键词 Motion recognition F-norm Time-frequency tensor MPCANet low-power consumption
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Investigation of a Low-Power-Consumption and Self-Retaining Micro Solenoid Valve for Thermal Management Systems
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作者 Jing Yao Shuai Yang +3 位作者 Liu Yang Qingxin Meng Chao Ai Xiangdong Kong 《Chinese Journal of Mechanical Engineering》 2025年第3期501-513,共13页
Thermosyphon loops are widely used in cooling systems.However,such distributed thermal management systems lack the ability to actively control the coolant flow in each parallel branch.An effective method for addressin... Thermosyphon loops are widely used in cooling systems.However,such distributed thermal management systems lack the ability to actively control the coolant flow in each parallel branch.An effective method for addressing this is to control the coolant flow in each branch using a solenoid valve.However,the existing valves do not satisfy the requirements for fast switching,low power,low pressure loss,and miniaturization.Therefore,in this study,a low-power-consumption miniature solenoid valve(LMSV)is proposed for use in thermal management systems.The key novelty is that the valve is designed with a suitably sized permanent magnet(PM)to allow the spool to continue working without consuming electrical energy.To achieve low flow resistance,a straight-through design is employed in the valve with the electromagnetic actuator located inside the valve shell.Multiphysical coupling analysis is performed to investigate its performance.The influence of the PM dimensions and current on the magnetic field distribution and electromagnetic force is studied.The effects of these key parameters on the flow field and pressure loss are also analyzed.Because the LMSV is sensitive to temperature,the switching time and energy consumption at different working temperatures are investigated.Experimental test platforms are constructed.A valve switching time of as short as 3 ms,pressure loss of 200 Pa at 0.92 L/min,and energy consumption of approximately 1.55 J during the opening and closing processes are achieved.The novel solenoid valve proposed in this study offers fast switching,low power consumption,low pressure loss,and miniaturization to meet the requirements of thermal management systems. 展开更多
关键词 Thermal management system low-power consumption Solenoid valve Multi-physical coupling
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Efficient VR rendering:Survey on foveated,stereo,cloud,and low-power rendering techniques
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作者 Xiao HU Xiaolong WU +6 位作者 Mingcong MA Xiang XU Yiping GU Gaoyuan WANG Yanning XU Xiangxu MENG Lu WANG 《虚拟现实与智能硬件(中英文)》 2025年第5期421-452,共32页
With technological advancements,virtual reality(VR),once limited to high-end professional applications,is rapidly expanding into entertainment and broader consumer domains.However,the inherent contradiction between mo... With technological advancements,virtual reality(VR),once limited to high-end professional applications,is rapidly expanding into entertainment and broader consumer domains.However,the inherent contradiction between mobile hardware computing power and the demand for high-resolution,high-refresh-rate rendering has intensified,leading to critical bottlenecks,including frame latency and power overload,which constrain large-scale applications of VR systems.This study systematically analyzes four key technologies for efficient VR rendering:(1)foveated rendering,which dynamically reduces rendering precision in peripheral regions based on the physiological characteristics of the human visual system(HVS),thereby significantly decreasing graphics computation load;(2)stereo rendering,optimized through consistent stereo rendering acceleration algorithms;(3)cloud rendering,utilizing object-based decomposition and illumination-based decomposition for distributed resource scheduling;and(4)low-power rendering,integrating parameter-optimized rendering,super-resolution technology,and frame-generation technology to enhance mobile energy efficiency.Through a systematic review of the core principles and optimization approaches of these technologies,this study establishes research benchmarks for developing efficient VR systems that achieve high fidelity and low latency while providing further theoretical support for the engineering implementation and industrial advancement of VR rendering technologies. 展开更多
关键词 Virtual reality Foveated rendering Stereo rendering Cloud rendering low-power rendering
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Hand-printed paper-based devices:Toward green flexible electronics and sensing applications
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作者 Parth Shah Sanjay A.Bhakhar +1 位作者 Pratik M.Pataniya C.K.Sumesh 《International Journal of Minerals,Metallurgy and Materials》 2025年第10期2341-2365,共25页
The rapid advancement of modern electronics has led to a surge in solid electronic waste,which poses significant environmental and health challenges.This review focuses on recent developments in paper-based electronic... The rapid advancement of modern electronics has led to a surge in solid electronic waste,which poses significant environmental and health challenges.This review focuses on recent developments in paper-based electronic devices fabricated through low-cost,hand-printing techniques,with particular emphasis on their applications in energy harvesting,storage,and sensing.Unlike conventional plastic-based substrates,cellulose paper offers several advantages,including biodegradability,recyclability,and low fabrication cost.By integrating functional nanomaterials such as two-dimensional chalcogenides,metal oxides,conductive polymers,and carbon-based structures onto paper,researchers have achieved high-performance devices such as broadband photodetectors(responsivity up to 52 mA/W),supercapacitors(energy density~15.1 mWh/cm^(2)),and pressure sensors(sensitivity~18.42 kPa^(-1)).The hand-printing approach,which eliminates the need for sophisticated equipment and toxic solvents,offers a promising route for scalable,sustainable,and disposable electronics.This review outlines fabrication methods and key performance metrics,and discusses the current challenges and future directions for realizing robust,flexible devices aligned with green technology and the United Nation’s Sustainable Development Goals. 展开更多
关键词 flexible electronics hand-print method opto-electronics electronic devices
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Skin-Integrated Wearable Electronics:A Dual-Interface Perspective
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作者 Fuying Dong Chi Han +2 位作者 Sheling TCai Ju-Hyuck Lee Simiao Niu 《SmartSys》 2025年第4期12-29,共18页
Skin-integrated wearable electronics enable continuous,medical-grade monitoring and therapy in daily life,but must balance conflicting needs related to mechanics,power,and communication.This review uses a dual-interfa... Skin-integrated wearable electronics enable continuous,medical-grade monitoring and therapy in daily life,but must balance conflicting needs related to mechanics,power,and communication.This review uses a dual-interface approach that separates the sensor-receiver interface,which handles wireless data and energy transfer,from the sensor-skin interface,where physiological signals are converted and mechanical and biological integration occur.We first reviewed wireless connections designed for skin electronics,focusing on Bluetooth Low Energy(BLE),Radio Frequency Identification(RFID)/Near-Field Communication(NFC)systems,and hybrid systems.Next,we examine sensor-skin interfaces ranging from mediated contact layers such as hydrogels for wearable ultrasound and soft conductive electrodes,to skin-conformal direct-contact methods based on structural mechanics,and ultrathin epidermal devices.Finally,we discuss cross-interface coupling,emphasizing how antenna layouts,power budgets,and body-induced RF effects limit mechanical design,and how skin mechanics influence link reliability.We conclude by exploring opportunities in battery-free and energy-autonomous systems,body-coupled communication,and integration with artificial intelligence(AI)-enabled digital health,positioning future electronic skins as soft,networked platforms that are comfortable and reliable. 展开更多
关键词 epidermal electronics sensor-receiver interface sensor-skin interface wearable electronics wireless communication
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Next Generation Electronics & Photonics
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《Nanotechnology and Precision Engineering》 2025年第1期I0001-I0001,共1页
This special issue will include reviews,regular papers,and short communications,and reports in the fields for next generation electronics and photonics.The topics include but not restricted in advanced microelectronic... This special issue will include reviews,regular papers,and short communications,and reports in the fields for next generation electronics and photonics.The topics include but not restricted in advanced microelectronic devices and materials,low-dimensional materials and novel nanodevice applications,flexible/wearable/implantable electronics,wide bandgap semiconductor materials and devices,photoelectronics,photonics,advanced display technologies,nanophotonics,integrated quantum photonics,photovoltaics,energy harvesting and self-powered wireless sensing,sensors,micro-actuators,MEMS,microfluidics,and bioMEMS,etc. 展开更多
关键词 PHOTONICS advanced microelectronic devices advanced microelectronic devices materialslow dimensional next generation electronics low dimensional materials novel nanodevice applications flexible electronics
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Integrating Hard Silicon for High‑Performance Soft Electronics via Geometry Engineering
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作者 Lei Yan Zongguang Liu +1 位作者 Junzhuan Wang Linwei Yu 《Nano-Micro Letters》 2025年第9期290-336,共47页
Soft electronics,which are designed to function under mechanical deformation(such as bending,stretching,and folding),have become essential in applications like wearable electronics,artificial skin,and brain-machine in... Soft electronics,which are designed to function under mechanical deformation(such as bending,stretching,and folding),have become essential in applications like wearable electronics,artificial skin,and brain-machine interfaces.Crystalline silicon is one of the most mature and reliable materials for high-performance electronics;however,its intrinsic brittleness and rigidity pose challenges for integrating it into soft electronics.Recent research has focused on overcoming these limitations by utilizing structural design techniques to impart flexibility and stretchability to Si-based materials,such as transforming them into thin nanomembranes or nanowires.This review summarizes key strategies in geometry engineering for integrating crystalline silicon into soft electronics,from the use of hard silicon islands to creating out-of-plane foldable silicon nanofilms on flexible substrates,and ultimately to shaping silicon nanowires using vapor-liquid-solid or in-plane solid-liquid-solid techniques.We explore the latest developments in Si-based soft electronic devices,with applications in sensors,nanoprobes,robotics,and brain-machine interfaces.Finally,the paper discusses the current challenges in the field and outlines future research directions to enable the widespread adoption of silicon-based flexible electronics. 展开更多
关键词 Soft electronics SILICON Geometry engineering Silicon nanowires
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Research on the Teaching Content of Power Electronics for the Major of Building Electricity and Intelligence
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作者 Huijie Xue 《Journal of Contemporary Educational Research》 2025年第6期7-11,共5页
The present teaching content of the power electronics course is insufficient to cover the power electronics technology used in building electrical engineering.This paper analyzes the relationship between building elec... The present teaching content of the power electronics course is insufficient to cover the power electronics technology used in building electrical engineering.This paper analyzes the relationship between building electrical engineering and power electronics technology,investigates the main power electronics technology used in building electrical engineering,introduces the teaching content of current power electronics course,analyzes the insufficiency of current teaching content related to the practice of electrical engineering,and proposes the principles and directions for the reformation and innovation of the teaching content of the course of power electronics for the major of building electricity and intelligence. 展开更多
关键词 Teaching content Power electronics Building electricity
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A novel transient strategy:transient electronics based on energetic materials
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作者 Yutao Wang Zhongliang Ma +2 位作者 Wei He Yongli Zhang Peijin Liu 《Defence Technology(防务技术)》 2025年第2期111-130,共20页
Transient electronics is a versatile tool that finds applications in various fields,including medical biology,environmental protection,and data information security.In the context of data protection,the traditional pa... Transient electronics is a versatile tool that finds applications in various fields,including medical biology,environmental protection,and data information security.In the context of data protection,the traditional passive degradation transient mode is being replaced by the active destruction mode,which features a short self-destruction time and provides greater resistance to recovery.This article presents an overview of recent progress in transient electronics,assessing the benefits and suitability of varying transient mechanisms.The article also analyses the influence of transient electronics on military security while emphasizing the advantages of implementing energetic materials.Besides,the article introduces energetic transient devices and evaluates their ability to support the autonomous operation of transient electronic devices. 展开更多
关键词 Transient electronics Energetic materials
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Readout electronics for beam monitor in the External-Target Experiment of CSR
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作者 Jun Liu Chao-Song Gao +9 位作者 Hu-Lin Wang Zhen Wang Xiang-Ming Sun Ran Chen Fei Yan Bi-Hui You Zi-Xuan Song Cheng-Xin Zhao Guang-Ming Huang Feng Liu 《Nuclear Science and Techniques》 2025年第5期113-125,共13页
The Cooling Storage Ring(CSR)external-target experiment(CEE)will be the first large-scale nuclear physics experiment at the Heavy Ion Research Facility in Lanzhou(HIRFL).A beam monitor has been developed to monitor th... The Cooling Storage Ring(CSR)external-target experiment(CEE)will be the first large-scale nuclear physics experiment at the Heavy Ion Research Facility in Lanzhou(HIRFL).A beam monitor has been developed to monitor the beam status and to improve the reconstruction resolution of the primary vertex.Custom-designed pixel charge sensors,named TopmetalCEEv1,are employed in the detector to locate the position of each particle.Readout electronics for the beam monitor were designed,including front-end electronics utilizing the Topmetal-CEEv1 sensors,as well as a readout and control unit that communicates with the DAQ,trigger,and clock systems.A series of tests were performed to validate the functionality and performance of the system,including basic electronic verifications and responses toαparticles and heavy-ion beams.The results show that all designed functions of the readout electronics system work well,and this system could be used for beam monitoring in the CEE experiment. 展开更多
关键词 CEE Beam monitor Topmetal-CEEv1 Readout electronics
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A Biomimetic Stress Field Modulation Strategy Inspired by Scorpion Compound Slit Sensilla Enabled High-Accuracy and Low-Power Positioning Sensor for Identifying the Load Incident Angles
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作者 Junqiu Zhang Yu Chen +11 位作者 Haoran Li Jiqi Gao Xiangbo Gu Jiachao Wu Xiaojing Qin Kejun Wang Bin Zhu Daobing Chen Tao Sun Jianhua Fan Zhiwu Han Luquan Ren 《Journal of Bionic Engineering》 2025年第2期727-738,共12页
Numerous arthropods evolve and optimize sensory systems, enabling them to effectively adapt complex and competitive habitats. Typically, scorpions can precisely perceive the prey location with the lowest metabolic rat... Numerous arthropods evolve and optimize sensory systems, enabling them to effectively adapt complex and competitive habitats. Typically, scorpions can precisely perceive the prey location with the lowest metabolic rate among invertebrates. This biological phenomenon contrasts sharply with engineered systems, which generally associates high accuracy with substantial energy consumption. Inspired by the Scorpion Compound Slit Sensilla (SCSS) with a stress field modulation strategy, a bionic positioning sensor with superior precision and minimal power consumption is developed for the first time, which utilizes the particular Minimum Positioning Units (MPUs) to efficiently locate vibration signals. The single MPU of the SCSS can recognize the direction of collinear loads by regulating the stress field distribution and further, the coupling action of three MPUs can realize all-angle vibration monitoring in plane. Experiments demonstrate that the bionic positioning sensor achieves 1.43 degrees of angle-error-free accuracy without additional energy supply. As a proof of concept, two bionic positioning sensors and machine learning algorithm are integrated to provide centimeter (cm)-accuracy target localization, ideally suited for the man-machine interaction. The novel design offers a new mechanism for the design of traditional positioning devices, improving precision and efficiency in both the meta-universe and real-world Internet-connected systems. 展开更多
关键词 Scorpion Compound Slit Sensilla(SCSS) Vibration Source Stress Field Modulation Strategy High-accuracy and low-power Positioning Sensor Minimum Positioning Unit(MPU)
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Evolving Role of Conjugated Polymers in Nanoelectronics and Photonics
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作者 Amaan Chougle Ayman Rezk +3 位作者 Syed Usama Bin Afzal Abdul Khayum Mohammed Dinesh Shetty Ammar Nayfeh 《Nano-Micro Letters》 2025年第10期76-105,共30页
Conjugated polymers(CPs)have emerged as an interesting class of materials in modern electronics and photonics,characterized by their unique delocalizedπ-electron systems that confer high flexibility,tunable electroni... Conjugated polymers(CPs)have emerged as an interesting class of materials in modern electronics and photonics,characterized by their unique delocalizedπ-electron systems that confer high flexibility,tunable electronic properties,and solution processability.These organic polymers present a compelling alternative to traditional inorganic semiconductors,offering the potential for a new generation of optoelectronic devices.This review explores the evolving role of CPs,exploring the molecular design strategies and innovative approaches that enhance their optoelectronic properties.We highlight notable progress toward developing faster,more efficient,and environmentally friendly devices by analyzing recent advancements in CP-based devices,including organic photovoltaics,field-effect transistors,and nonvolatile memories.The integration of CPs in flexible sustainable technologies underscores their potential to revolutionize future electronic and photonic systems.As ongoing research pushes the frontiers of molecular engineering and device architecture,CPs are poised to play an essential role in shaping next-generation technologies that prioritize performance,sustainability,and adaptability. 展开更多
关键词 Conjugated polymers Molecular engineering Organic photonics Organic electronics
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