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CLEO: QELS_fundamental science, QELS 2022

作者： Tonkaev, Pavel Fan, Yubin Wang, Yuhan Han, Jiecai Zalogina, Anastasia Tripathi, Aditya Lee, Hoo-Cheol Park, Hong-Gyu Makarov, Sergey Kruk, Sergey Song, Qinghai Xiao, Shumin Kivshar, Yuri Nonlinear Physics Center Research School of Physics Australian National University CanberraACT2601 Australia ITMO University St. Petersburg197101 Russia Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Shenzhen Graduate School Harbin Institute of Technology Shenzhen518055 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin150080 China Department of Physics Korea University Seoul02841 Korea Republic of Collaborative Innovation Center of Extreme Optics Shanxi University Shanxi Taiyuan030006 China

ISBN: (纸本)9781557528209

We study multiphoton photoluminescence from several types of nonlinear resonant metaphotonic structures. We develop a general theoretical approach to describe such nonlinear effects and confirm our predictions in experiments with perovskite metasurfaces and AlGaAs nanoantennas. © Optica Publishing Group 2022, © 2022 The Author(s)

关键词： Photoluminescence

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Graphene water transfer printing for 3D surface

Graphene water transfer printing for 3D surface

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IEEE International Conference on micro Electro Mechanical systems

作者： Yangxi Zhang Yiming Gui Fanrui Meng Linyu Li Chencheng Gao Hongwei Zhu Yilong Hao Institute of Microelectronics Peking University Beijing China National Key Laboratory of Nano/Micro Fabrication Technology Beijing China School of Materials Science & Engineering Tsinghua University Beijing China Innovation Center for MicroNanoelectronics and Integrated System Beijing China

ISBN: (纸本)9781509006090

In this paper, we report a novel water transfer printing method, which can transfer chemical vapor deposition (CVD) graphene from copper foil to 3D surface. By the aid of surface tension and Van der Waals force, multilayer graphene film can be transferred to various substrates with smooth surface including glass sheet, colophony filament, silicon oxide micro structure, polyimide (PI) film, polymethyl methacrylate (PMMA) tube and optical fibers. As the graphene film can be selectively transferred to assigned position in 3D surface, this simple room temperature transfer method has promising application potential in flexible MEMS and device on curved surface.

关键词： Graphene Films Surface treatment Copper Printing Three-dimensional displays Substrates

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Phyllotaxis-inspired nanosieves with multiplexed orbital angular momentum

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eLight 2021年第1期1卷 46-56页

作者： Zhongwei Jin David Janoschka Junhong Deng Lin Ge Pascal Dreher Bettina Frank Guangwei Hu Jincheng Ni Yuanjie Yang Jing Li Changyuan Yu Dangyuan Lei Guixin Li Shumin Xiao Shengtao Mei Harald Giessen Frank Meyer zu Heringdorf Cheng-Wei Qiu Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Singapore College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China Faculty of Physics and Center for Nanointegration Duisburg-Essen(CENIDE) University of Duisburg-EssenLotharstrasse 1-2147057 DuisburgGermany Department of Materials Science and Engineering Shenzhen Institute for Quantum Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Beijing Qianjunyide Technology Co.Ltd Beijing 100031China. Physics Institute and Stuttgart Center of Photonics Engineering(SCoPE) University of Stuttgart70569 Stutt-gartGermany. School of Physics University of ElectronicScience and Technology of ChinaChengdu 611731China. Key Laboratory of Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China. Department of Electronic and Information Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARChina. Department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SARChina. State Key Laboratory On Tunable Laser Technology Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information SystemShenzhen Graduate SchoolHarbin Institute of TechnologyShenzhen 518055China.

nanophotonic platforms such as metasurfaces,achieving arbitrary phase profiles within ultrathin thickness,emerge as miniaturized,ultracompact and kaleidoscopic optical vortex ***,it is often required to segment or interleave independent sub-array metasurfaces to multiplex optical vortices in a single nano-device,which in turn affects the device’s compactness and channel ***,inspired by phyllotaxis patterns in pine cones and sunflowers,we theoretically prove and experimentally report that multiple optical vortices can be produced in a single compact phyllotaxis nanosieve,both in free space and on a chip,where one meta-atom may contribute to many vortices *** time-resolved dynamics of on-chip interference wavefronts between multiple plasmonic vortices was revealed by ultrafast time-resolved photoemission electron *** nature-inspired optical vortex generator would facilitate various vortex-related optical applications,including structured wavefront shaping,free-space and plasmonic vortices,and high-capacity information metaphotonics.

关键词： Phyllotaxis vortex nanosieve Free-space Plasmonic vortices Ultrafast time-resolved

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Study on the influence of combustion in the combustion chamber of the porous media for MTPV system

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Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of technology 2011年第SUPPL. 1期43卷 360-363页

作者： Ding, Jian-Ning Dong, Yu-Zhong Cheng, Guang-Gui Ling, Zhi-Yong Fan, Zhen Micro/Nano Science and Technology Center Jiangsu University Zhenjiang 212013 China Low-Dimension Material Micro/Nano Device and System Center Jiangsu Polytechnic University Changzhou 213164 China Key Laboratory of New Energy Engineering Changzhou 213164 China

micro-chamber is one of the key components of micro-thermophotovoltaic (MTPV) system, whose photon radiation ability can intensify with the rising of temperature, resulting in the raise of outputting power of the system. Therefore, it is essential for the MTPV system to rise the micro-combustion chamber temperature. This article analysizes and expounds the influences of the factors, including the ratio of hydrogen to oxygen, the total mixture flow and the outputting pressure of hydrogen and oxygen, on the distribution of temperature of the wall of micro-combustion chamber. The experiment results indicate that when the ratio of hydrogen to oxygen is 1.2:1, the wall of the micro-combustion chamber could achieve the highest temperature, which rises with the increasing of the total mixture flow and the outputting pressure of hydrogen and oxygen. Therefore, in order to obtain a higher temperature of the wall of micro-combustion chamber and a high efficiency of the system, 1.2:1 for the ratio of hydrogen to oxygen is most preferable. Also the total mixture flow and the outputting pressure of hydrogen and oxygen should be as high as possible.

关键词： Combustion chambers

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3D Modeling and Finite-Element Full-wave Simulation of TSV for Stack up SIP Integration Applications

3D Modeling and Finite-Element Full-wave Simulation of TSV f...

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2010 11th International Conference on Electronic Packaging technology & High Density Packaging(2010 电子封装技术与高密度封装国际会议)

作者： Lei Liang Min Miao Zhensong Li Bo Han Xin Sun Yufeng Jin Information Microsystem Institute Beijing Information Science and Technology University.No.35 Nort System & Standard Department Datang Mobile Communications Equipment Co. Ltd.No.29 Xueyuan Road H National Key Laboratory of Micro/Nano Fabrication Technology Peking University＃ 5 Yiheyuan Rd Ha

The modeling and simulation of via's effect on the data transferring or high frequency signal path and device performance have been one of the major concerns in the designing and testing of multilayered electric interconnects in applications like highly integrated system-in-package (SIP)[1] and high-speed circuitry design[2]. The authors of this paper explore the 3D full-wave modeling of through Si vias (TSV) in multilayered SIP and simulate their effects on spectral performance and signal integrity with the help of finite element methodologies. The emphasis of the research is on the revealing of 3D electromagnetic field distribution on fundamental single and differential TSV interlayer interconnects, so that more detailed parasitic effects may be found and equivalent model closer to the reality can be obtained, compared with the methodology based on purely circuit analysis. And the effect of the variations in the TSV diameter and height and the effect of grounded TSV are revealed. Additionally, S21 performance and field distribution of two sort of paired vias are displayed. Waveports are adopted for the full-wave modeling and all the cases are in 0～10GHz range.

关键词： Through-silicon vias Integrated circuit modeling Solid modeling Three dimensional displays Finite element methods Couplings Circuit simulation

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Applications of MXenes in human-like sensors and actuators

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nano Research 2023年第4期16卷 5767-5795页

作者： Jinbo Pang Songang Peng Chongyang Hou Xiao Wang Ting Wang Yu Cao Weijia Zhou Ding Sun Kai Wang Mark H.Rümmeli Gianaurelio Cuniberti Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongUniversity of JinanJinan 250022China Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität DresdenDresden 01069Germany Center for Advancing Electronics Dresden Technische Universität DresdenDresden 01069Germany Dresden Center for Computational Materials Science Technische Universität DresdenDresden 01062Germany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität DresdenDresden 01062Germany 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 Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan 250353China School of Bioengineering Qilu University of TechnologyShandong Academy of ScienceJinan 250353China Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology(Ministry of Education) Northeast Electric Power UniversityJilin 132012China School of Electrical Engineering Northeast Electric Power UniversityJilin 132012China School of Electrical Engineering Weihai Innovation Research InstituteQingdao UniversityQingdao 266000China School of Electrical and Computer Engineering Jilin Jianzhu UniversityChangchun 130118China Institute for Complex Materials Leibniz Institute for Solid State and Materials Research Dresden(IFW Dresden)20 Helmholtz StrasseDresden 01069Germany College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006China Key L

Human beings perceive the world through the senses of sight,hearing,smell,taste,touch,space,and *** first five senses are prerequisites for people to *** sensing organs upload information to the nervous systems,including the brain,for interpreting the surrounding ***,the brain sends commands to muscles reflexively to react to stimuli,including light,gas,chemicals,sound,and ***,as an emerging two-dimensional material,has been intensively adopted in the applications of various sensors and *** this review,we update the sensors to mimic five primary senses and actuators for stimulating muscles,which employ MXene-based film,membrane,and composite with other functional ***,a brief introduction is delivered for the structure,properties,and synthesis methods of ***,we feed the readers the recent reports on the MXene-derived image sensors as artificial retinas,gas sensors,chemical biosensors,acoustic devices,and tactile sensors for electronic ***,the actuators of MXene-based composite are ***,future opportunities are given to MXene research based on the requirements of artificial intelligence and humanoid robot,which may induce prospects in accompanying healthcare and biomedical engineering applications.

关键词： MXenes sensors actuators gas sensors biosensors tactile sensors sound sensors artificial retina

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Field-free current-induced magnetization switching of a room temperature van der Waals magnet for neuromorphic computing

arXiv

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arXiv 2024年

作者： Zhou, Chenxi Guo, Zhe Li, Qifeng Zhang, Gaojie Wu, Hao Chen, Jinsen Li, Rongxin Zhang, Shuai Cao, Cuimei Xiong, Rui Chang, Haixin You, Long School of Integrated Circuits Wuhan National Laboratory for Optoelectronics Key Laboratory of Information Storage System Ministry of Education of China Huazhong University of Science and Technology Wuhan430074 China Shenzhen Huazhong University of Science and Technology Research Institute Shenzhen518000 China School of Microelectronics Hubei University Wuhan430062 China School of Integrated Circuits Wuhan430074 China Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education School of Physics and Technology Wuhan University Wuhan430072 China Center for Joining and Electronic Packaging State Key Laboratory of Material Processing and Die & Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China

Spin orbit torque (SOT) has become a promising approach to efficiently manipulate the magnetization switching in spintronic devices. As a main factor to impact the device performance, the high quality interface is essentially desired, which can be readily acquired by using the two-dimensional (2D) van der Waals (vdW) materials. Recently, a 2D ferromagnetic material Fe3GaTe2 has been discovered to possess the above-room-temperature Curie temperature and strong perpendicular magnetic anisotropy (PMA), providing an excellent candidate to build spintronic devices. On the other hand, an external magnetic field is necessary for the SOT-driven deterministic switching of perpendicular magnetization, which has become a block for the real applications. Here, we realize the field-free SOT switching of Fe3GaTe2 at room temperature based on the Fe3GaTe2/MnPt heterostructure. In addition, inspired by the superiority of 2D materials in 3D heterogeneous integration, we explore the potential of our device in the computing in memory (CIM). With the application of the current pulses, the gradual switching of our device at zero field imitates the function of artificial synapse in the convolutional neural network (CNN), achieving a high accuracy (~ 92.8%) pattern recognition. Our work proposes a feasible solution for field-free SOT switching in 2D vdW spintronic devices, which paves the way for applications in magnetic memory and neuromorphic computing. Copyright © 2024, The Authors. All rights reserved.

关键词： Van der Waals forces

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Strong Neel ordering and luminescence correlation in a two-dimensional antiferromagnet

arXiv

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arXiv 2022年

作者： Zhou, Yongheng He, Kaiyue Hu, Huamin Ouyang, Gang Zhu, Chao Wang, Wei Qin, Sichen Tao, Ye Chen, Runfeng Zhang, Le Shi, Run Cheng, Chun Wang, Han Liu, Yanjun Liu, Zheng Wang, Taihong Huang, Wei Wang, Lin Chen, Xiaolong Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen518055 China 30 South Puzhu Road Nanjing211816 China Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan Province Hunan Normal University Changsha410081 China SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Collaborative Innovation Center for Micro/Nano Fabrication Device and System Southeast University Nanjing210096 China School of Materials Science and Engineering Nanyang Technological University Singapore639798 Singapore 127 West Youyi Road Xi'An710072 China Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing210023 China Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen518055 China

Magneto-optical effect has been widely used in light modulation, optical sensing and information storage. Recently discovered two-dimensional (2D) van der Waals layered magnets are considered as promising platforms for investigating novel magneto-optical phenomena and devices, due to the long-range magnetic ordering down to atomically-thin thickness, rich species and tunable properties. However, majority 2D antiferromagnets suffer from low luminescence efficiency which hinders their magneto-optical investigations and applications. Here, we uncover strong light-magnetic ordering interactions in 2D antiferromagnetic MnPS3 utilizing a newly-emerged near-infrared photoluminescence (PL) mode far below its intrinsic bandgap. This ingap PL mode shows strong correlation with the Neel ordering and persists down to monolayer thickness. Combining the DFT, STEM and XPS, we illustrate the origin of the PL mode and its correlation with Neel ordering, which can be attributed to the oxygen ion-mediated states. Moreover, the PL strength can be further tuned and enhanced using ultraviolet-ozone treatment. Our studies offer an effective approach to investigate light-magnetic ordering interactions in 2D antiferromagnetic semiconductors. © 2022, CC BY-NC-SA.

关键词： Manganese compounds

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Real-time imaging of accelerated solid-liquid-gas reactions with nanobubbles

Research Square

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Research Square 2020年

作者： Wang, Wen Xu, Tao Chen, Jige Shangguan, Junyi Dong, Hui Ma, Huishu Zhang, Qiubo Bai, Tingting Guo, Zhirui Fang, Haiping Zheng, Haimei Sun, Litao SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Collaborative Innovation Center for Micro/Nano Fabrication Device and System Southeast University Nanjing210096 China Materials Sciences Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Shanghai Synchrotron Radiation Facility Zhangjiang Laboratory Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai201204 China Department of Physics East China University of Science and Technology Shanghai200237 China Department of Materials Science and Engineering University of California BerkeleyCA94720 United States Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai201800 China Key Laboratory of Welding Robot and Application Technology of Hunan Province Engineering Research Center of Complex Tracks Processing Technology Equipment of Ministry of Education Xiangtan University Xiangtan411105 China The Second Affiliated Hospital Key Laboratory for Aging & Disease Nanjing Medical University Nanjing210011 China

Solid-liquid-gas reactions are ubiquitous. An understanding of how gases influence the reactions at the nanoscale is significant for achieving the enhanced triple-phase reactions. Here, we report a real-time observation of the accelerated etching of gold nanorods with oxygen nanobubbles in aqueous hydrobromic acid using liquid cell transmission electron microscopy (TEM). Our observation reveals that when an oxygen nanobubble is close to a nanorod below the critical distance (~1nm), the local etching rate is significantly enhanced with over an order of magnitude faster. Molecular dynamics simulations results show that the strong attractive van der Waals interaction between the gold nanorod and oxygen molecules facilitates the transport of oxygen through the thin liquid layer to the gold surface and thus plays a crucial role in increasing the etching rate. This result sheds light on the rational design of solid-liquid-gas reactions for enhanced activities. © 2020, CC BY.

关键词： Molecular dynamics

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A Silicon Neural Optrode with Noise Mitigation Structure for High-Fidelity Neural Recording

SSRN

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SSRN 2022年

作者： Wang, Minghao Ji, Bowen Wang, Longchun Fan, Ye Jin, Minyi Xu, Jiahui Shang, Siyan Ni, Chuner Hu, Yili Cheng, Yuhua Dong, Linxi Liu, Jing-Quan Wang, Gaofeng MOE Engineering Research Center of Smart Microsensors and Microsystems School of Electronics and Information Hangzhou Dianzi University Hangzhou310018 China National Key Laboratory of Science and Technology on Micro/Nano Fabrication Shanghai Jiao Tong University Shanghai200240 China The Unmanned System Research Institute Northwestern Polytechnical University Xi’an710060 China The Institute of Precision Machinery and Smart Structure Key Laboratory of Intelligent Operation and Maintenance Technology Equipment for Urban Rail Transit of Zhejiang Province College of Engineering Zhejiang Normal University Yinbin Street 688 Jinhua321004 China

In recent years, optogenetic-based neural regulation technology has attracted extensive attention. The optrode integrated with optical stimulating micro-laser diode (LD)/light emitting diode (LED) and electrical recording microelectrodes presents significant advantages. However, the performance of the neural optrode is still hindered by high amplitude noise generated by micro-LD/LED and silicon substrate. A silicon optrode with heavy doped silicon probes, ground shielded LD and electrochemical modified microelectrodes is herein developed for low-noise and high-fidelity optical modulation. Firstly, the optoelectronic integration is realized by adopting LD-coupled optical fiber module that can avoid fiber tangle and tissue heating. Secondly, the electrochemical performance is significantly improved to two orders of magnitude by electrodeposition of Pt Black (PBK)/conductive polymer double layer on gold microelectrodes. Thirdly, the low-noise recording is achieved by combination of heavy doping, electrochemical modification, electromagnetic shielding and transient pulse shaping of the optrode. Furthermore, the in-vivo acute recording experiments show that the light-induced photoelectric noise has little influence on the firing rate and SNR (signal to noise) of the recorded signals accompanied by optical stimulation. The results indicate that this device is a promising optogenetic tool for the research of local neural circuits. © 2022, The Authors. All rights reserved.

关键词： microelectrodes

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