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SSRN 2024年

作者： Zhang, Hongjian Fang, Yi Lee, Junki Jeong, Chang Kyu Zhang, Yong State Key Laboratory of Silicate Materials for Architectures Center for Smart Materials and Device Integration School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Division of Advanced Materials Engineering Jeonbuk National University Jeonbuk Jeonju54896 Korea Republic of Department of JBNU‑KIST Industry Academia Convergence Research and Hydrogen & Fuel Cell Research Center Jeonbuk National University Jeonbuk Jeonju54896 Korea Republic of

Self-powered sensors, capable of detecting static and dynamic pressure without an external power source, are pivotal for advancements in human-computer interaction, health monitoring, and artificial intelligence. Current sensing technologies, however, often fall short of meeting the growing needs for precise and timely pressure monitoring. This paper introduces a novel self-powered pressure sensor utilizing electrochemical reactions. The sensor's ion conduction path and internal resistance adjust in response to external stress across a broad range. Its three-dimensional structure, crafted using a simple template on the electrolyte, enables the efficient and cost-effective detection of various mechanical stimuli. This device not only achieves an optimized power density of approximately 2.34 mW cm−2—surpassing most existing technologies—but also features excellent flexibility, quick response and recovery times (0.15 s and 0.19 s respectively), high durability (2000 cycles), and a broad sensing range (0.23-20 kPa). Moreover, it serves as an ionic touchpad, enhancing data collection and recognition, and integrates seamlessly with a mouthpiece for accurate, real-time monitoring of respiratory activities. This innovative sensor offers minimal cost and simple process requirements while providing multifunctional capabilities for energy harvesting and pressure sensing, marking a significant step forward in designing next-generation sensors. © 2024, The Authors. All rights reserved.

关键词： Energy harvesting

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3D Printed Microlens Probe for Optical Coherence Tomography

3D Printed Microlens Probe for Optical Coherence Tomography

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Asia Communications and Photonics Conference and Exhibition (ACP)

作者： Yalong Tai Zhuorong Li Dejun Liu Bozhe Li Rui Zhu Jianan Li Qiang Li Haiping Liu Changrui Liao Yiping Wang Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors State Key Laboratory of Radio Frequency Heterogeneous Integration Shenzhen University Shenzhen China Shenzhen Key laboratory of Ultrafast Laser Micro/Nano Manufacturing Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen China International Graduate School at Shenzhen Tsinghua University Shenzhen China Shenzhen Vivolight Medical Device & Technology Co. Ltd. Shenzhen China State Key Laboratory of Transient Optics and Photonics Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi'an China

Microsized endoscopy is increasingly demanded in medical clinical diagnosis for imaging in small blood vessels or delicate organs. In this paper, we propose a 3D printed side-viewing microlens on fiber tip by using the femtosecond laser two-photon polymerization (TPP) method for optical coherence tomography (OCT) imaging applications. The printed microlens is only 210 μm in width and 270 μm in height, its measured lateral resolution is around 9.4 μm in air. It is demonstrated that the proposed microlens can easily profile the depth resolved inner structure of a homemade plastic pipe.

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Emerging Internet of Things driven carbon nanotubes-based devices

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Nano Research 2022年第5期15卷 4613-4637页

作者： Shu Zhang Jinbo Pang Yufen Li Feng Yang Thomas Gemming Kai Wang Xiao Wang Songang Peng Xiaoyan Liu Bin Chang Hong Liu Weijia Zhou Gianaurelio Cuniberti Mark HRümmeli Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong Institute for Advanced Interdisciplinary Research(iAIR)University of JinanJinan 250022China Department of Chemistry Guangdong Provincial Key Laboratory of CatalysisSouthern University of Science and TechnologyShenzhen 518055China Leibniz Institute for Solid State and Materials Research Dresden P.O.Box 270116Dresden D-01171Germany State Key Laboratory of Crystal Materials Center of Bio&Micro/Nano Functional MaterialsShandong University27 Shandanan RoadJinan 250100China School of Electrical Engineering Qingdao UniversityQingdao 266071China Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences 1068 Xueyuan AvenueShenzhen University TownShenzhen 518055China High-Frequency High-Voltage Device and Integrated Circuits R&D Center Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Microelectronic Devices&Integrated Technology Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China School of Chemistry and Chemical Engineering University of JinanJinan 250022China College of Energy Soochow Institute for Energy and Materials InnovationsSoochow UniversitySuzhou 215006China Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow UniversitySuzhou 215006China Centre of Polymer and Carbon Materials Polish Academy of SciencesM.Curie Sklodowskiej 34Zabrze 41-819Poland Institute of Environmental Technology(CEET) VSB-Technical University of Ostrava17.Listopadu 15Ostrava 70833Czech Republic Dresden Center for Computational Materials Science Technische Universität DresdenDresden 01062Germany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität DresdenDresden 01062Germany Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität DresdenDresden 01069Germany Center for Advancing Electronics D

Carbon nanotubes(CNTs)have attracted great attentions in the field of electronics,sensors,healthcare,and energy *** emerging applications have driven the carbon nanotube research in a rapid ***,the structure control over CNTs has inspired an intensive research vortex due to the high promises in electronic and optical device ***,this in-depth review is anticipated to provide insights into the controllable synthesis and applications of high-quality ***,the general synthesis and post-purification of CNTs are briefly ***,the state-of-the-art electronic device applications are discussed,including field-effect transistors,gas sensors,DNA biosensors,and pressure ***,the optical sensors are delivered based on the *** addition,energy applications of CNTs are discussed such as thermoelectric energy ***,future opportunities are proposed for the Internet of Things(IoT)oriented sensors,data processing,and artificial intelligence.

关键词： carbon nanotubes electronics sensors electronic skins Internet of Things artificial intelligence

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Design of A Novel Low Voltage Triggered Silicon Controlled Rectifier (SCR) for ESD Applications 1

Design of A Novel Low Voltage Triggered Silicon Controlled R...

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1st Annual International EOS/ESD Symposium on Design and System, IEDS 2020

作者： Song, Wenqiang Du, Feibo Hou, Fei Liu, Jizhi Huang, Xiaozong Liu, Zhiwei Liou, Juin J.5 NuVolta Technologies Inc Shanghai China The Shenzhen Key Lab of Advanced Electron Device and Integration School of Electronic and Computer Engineering Peking University Shenzhen Graduate School Shenzhen518055 China Institute of Electronic and Information Engineering Uestc in Guangdong Guangdong523808 China NuVolta Technologies Inc Shanghai China The State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu610054 China

ISBN: (纸本)9781585373284

In this paper, a novel low-voltage triggered silicon-controlled rectifier (NLVTSCR) with low trigger voltage and higher holding voltage is proposed and implemented in a 28nm CMOS process. The proposed NLVTSCR in the TLP test has a low trigger voltage and an adjustable high holding voltage from 3.44Vto 4.93V. In addition, it does not require any additional masks, making it an excellent candidate for 3.3V ESD protection. Compared to conventional low triggered voltage silicon-controlled rectifier (LVTSCR), the proposed NLVTSCR device provides a higher holding voltage than its conventional counterpart. © 2021 EOS/ESD ASSOCIATION INC.

关键词： Thyristors

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Significantly enhanced piezo-photocatalytic capability in BaTiO_(3) nanowires for degrading organic dye

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Journal of Materiomics 2020年第2期6卷 256-262页

作者： Xiaofang Liu Longyin Xiao Yong Zhang Huajun Sun School of Chemistry Chemical Engineering and Life SciencesWuhan University of TechnologyWuhan430070China State Key Laboratory of Silicate Materials for Architectures Center for Smart Materials and Device IntegrationSchool of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Advanced Ceramics Institute of Zibo New&High-Tech Industrial Development Zone Zibo255000China

Over the last several years,piezo-photocatalytic effect was intensively investigated for a facile,effective and promising protocol to sewage treatment and environmental *** research on the integration of piezocatalytic and photocatalytic process on lead-free ferroelectric materials is highly demanded to further push this field *** this work,BaTiO_(3) nanowires(BT NWs)were fabricated by a two-step hydrothermal *** degradation of organic dye(methyl orange,MO)aqueous solution(5 mg L^(-1))by integrating photocatalysis with the piezoelectric-like effect under UV light radiation and ultrasonic vibration was *** decomposition ratio reaches up to ~98.17%(at 80 min),which is around 1.28 and 2.24 times of the sole piezocatalysis and photocatalysis process,*** intermediate product of hydroxyl radical(·OH)and superoxide radical(·O_(2)^(-))was detected and quantified by radical trapping experiments,to illustrating their key role in degrading MO *** addition,we carried out sequential cycles to evaluate the cycling stability and usage durability of catalysts and a reduction of ~15% in the efficiency was observed after four *** work provides a promising paradigm for the further development of piezo-photocatalytic materials and target applications in environmental field.

关键词： Hydrothermal BaTiO_(3) Piezo-photocatalytic Piezoelectric potential Catalysis

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Pvdf/Carbon Directional Microchannels-Enhanced Ion Diode-Like Hydrogel-Based Pressure Sensors

SSRN

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SSRN 2025年

作者： Wen, Xuezhong Zhang, Hongjian Eom, Taeuk Jeong, Chang Kyu Zhang, Yong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Center for Smart Materials and Device Integration Wuhan University of Technology Wuhan430070 China Department of JBNU-KIST Industry-Academia Convergence Research Jeonbuk National University Jeonbuk Jeonju54896 Korea Republic of Division of Advanced Materials Engineering Jeonbuk National University Jeonbuk Jeonju54896 Korea Republic of Department of Energy Storage/Conversion Engineering of Graduate School Hydrogen and Fuel Cell Research Center Jeonbuk National University Jeonbuk Jeonju54896 Korea Republic of

Hydrogels are promising candidates for flexible electronics but are often constrained by narrow pressure-sensing ranges and unstable ion migration. To overcome these limitations, we developed an ionic hydrogel sensor incorporating diode-inspired bipolar architectures (PSSNa/PDACl) and poly(vinylidene fluoride)/carbon directional microchannels (PCDMC). The optimized 5-PCNPC hydrogel exhibits a broad pressure-sensing range (2.3–100 kPa) with a sensitivity of 0.360 mV·kPa−1 (a 35.6% enhancement) and a rectification ratio of 12.9, enabled by PCDMC-guided anisotropic ion transport and rapid stress dissipation (337 ms recovery). With excellent durability over 500 cycles and a power density of 1.17 mW·m−2, the hydrogel sensor demonstrates its potential in practical applications, including a 5×5 touchpad for spatial pressure mapping and real-time monitoring of respiration, swallowing, and locomotion. This study underscores the potential of hydrogel-based sensors with wide-range operability for next-generation wearables and interactive systems. © 2025, The Authors. All rights reserved.

关键词： Flexible electronics

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A Character Recognition Method for Chip Surface Characters Based on Text Replacement

SSRN

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SSRN 2022年

作者： Xu, Wei Shi, Yecun Xi, Yu Liu, Jingyue Wang, Tan Zhang, Haichao Guo, Cuijuan Bai, Jinjun Xu, Degang Yao, Jianquan Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems School of Electronic and Information Engineering Tiangong University Tianjin300387 China Microelectronic Device Reliability Laboratory Research Test Center of Defense Technology for Aerospace Science and Industry Beijing100854 China Department of Electrical and Computer Engineering Northeatern University BostonMA02115 United States School of Precision Instruments and Optoelectronics Engineering Institute of Laser and Optoelectronics Tianjin University Tianjin300072 China

Due to the particular screen printing rules defined by the unique chip manufacturer and the huge variety of chips, it is difficult to identify chip information by naked eye in chip reliability detection. Automatic identification character technology can help us obtain the information of the chip. But the special character samples in the dataset is extremely uneven. When recognizing characters on chip surface by deep learning, the limited certain characters dataset will reduce the recognition accuracy. A character recognition method for chip surface characters based on text replacement is proposed in this paper. Firstly, the efficient channel attention modules are added to enhance the feature extraction of characters in the text style transfer process. Secondly, the dilated convolution layers are used to replace the residual module during the background restoration process, which help to obtain a more comprehensive background texture feature. Finally, a one-stage target detection network YOLOv5s is used to detect the characters on the chip surface. The experimental results demonstrated that the three evaluation metrics for image generation quality (l2 error, psnr, and ssim) achieved better performance than previous work due to the text replacement network. The overall charac- © 2022, The Authors. All rights reserved.

关键词： Convolution

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A Character Recognition Method for Chip Surface Characters Based on Text Replacement

SSRN

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SSRN 2022年

关键词： Convolution

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Improved Ultraviolet Resistant through the Natural antioxidants in Efficient Perovskite Photovoltaics

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Current Applied Physics 2025年

作者： Xueyuan Li Tianxiao Liu Yaru Du Niqian Du Shanshan Du Kaikai Liu Zhiyong Liu School of Physic Henan Normal University Xinxiang 453007 China Henan Key Laboratory of Advanced Semiconductor & Functional Device Integration Xinxiang 453007 China School of Physics and Engineering Henan University of Science and Technology Luoyang 471023 China

Perovskite solar cells (PSCs) have attracted much attention due to their excellent photoelectric properties. However, the instability of perovskites limits its development, which resulted by degradation derived from oxygen and ultraviolet light. Herein, the contain conjugated double bonds and natural antioxidant layer provided by β-carotene and astaxanthin could constitute ligand bonds with Pb 2+ in the form of Lewis acid-base interactions and eliminate UV-induced free radicals during photoaging process, which passivate the surface defects and improve the crystal quality of perovskite films, improving operational stability of PSCs. The optimized PSCs arrive a champion power conversion efficiency (PCE) of 23.56%, maintaining 88% of the original PCE after continuous operating 140 h under UV illumination state and 89% of the original PCE after 2400 h of operation in air environment condition. This work provides a general strategy for improving the stability of PSCs.

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Heralded nonlocal quantum gates for distributed quantum computation in a decoherence-free subspace

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Physical Review A 2024年第5期110卷 052612-052612页

作者： Wanhua Su Wei Qin Adam Miranowicz Tao Li Franco Nori MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing School of Physics Nanjing University of Science and Technology Nanjing 210094 China Center for Joint Quantum Studies and Department of Physics School of Science Tianjin University Tianjin 300350 China Theoretical Quantum Physics Laboratory Cluster for Pioneering Research RIKEN Wakoshi Saitama 351-0198 Japan Institute of Spintronics and Quantum Information Faculty of Physics and Astronomy Adam Mickiewicz University PL-61-614 Poznań Poland Engineering Research Center of Semiconductor Device Optoelectronic Hybrid Integration in Jiangsu Province Nanjing 210094 China Quantum Information Physics Theory Research Team Quantum Computing Center RIKEN Wako-shi Saitama 351-0198 Japan Physics Department The University of Michigan Ann Arbor Michigan 48109-1040 USA

We propose a heralded protocol for implementing nontrivial quantum gates on two stationary qubits coupled to spatially separated cavities. By dynamically controlling the evolution of the composite system, nonlocal two-qubit quantum (e.g., cphase and cnot) gates can be achieved without real excitations of either cavity modes or atoms. The success of our protocol is conditioned on projecting an auxiliary atom onto a postselected state, which simultaneously removes various detrimental effects of dissipation on the gate fidelity. In principle, the success probability of the gate can approach unity as the single-atom cooperativity becomes sufficiently large. Furthermore, we show its application for implementing single- and two-qubit gates within a decoherence-free subspace that is immune to a collective dephasing noise. This faithful, heralded, and nonlocal protocol could, therefore, be useful for distributed quantum computation and scalable quantum networks.

关键词： Quantum computation Quantum gates Quantum networks Quantum repeaters

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