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Nanodevices engineering and spin transport properties of MnBi_(2)Te_(4) monolayer

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npj Computational Materials 2021年第1期7卷 414-421页

作者： Yipeng An Kun wang Shijing Gong Yusheng Hou Chunlan Ma Mingfu Zhu Chuanxi Zhao tianxing wang Shuhong Ma Heyan wang Ruqian Wu Wuming Liu School of Physics&Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials Henan Normal UniversityXinxiangChina Department of Physics and Astronomy Mississippi State UniversityStarkvilleMSUSA Department of Chemistry Mississippi State UniversityStarkvilleMSUSA Key Laboratory of Polar Materials and Devices(MOE)&Department of Optoelectronics East China Normal UniversityShanghaiChina Department of Physics and Astronomy University of CaliforniaIrvineCAUSA School of Physics Sun Yat-Sen UniversityGuangzhouChina School of Physics and Technology Suzhou University of Science and TechnologySuzhouJiangsuChina Hebi National Lighting Co.Ltd HebiChina Siyuan Laboratory Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy MaterialsDepartment of PhysicsJinan UniversityGuangzhouChina Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijingChina

Two-dimensional(2D)magnetic materials are essential for the development of the next-generation spintronic ***,layered van der Waals(vdW)compound MnBi2Te4(MBT)has attracted great interest,and its 2D structure has been reported to host coexisting magnetism and ***,we design several conceptual nanodevices based on MBT monolayer(MBT-ML)and reveal their spin-dependent transport properties by means of the first-principles *** pn-junction diodes and sub-3-nm pin-junction field-effect transistors(FETs)show a strong rectifying effect and a spin filtering effect,with an ideality factor n close to 1 even at a reasonably high *** addition,the pip-and nin-junction FETs give an interesting negative differential resistive(NDR)*** gate voltages can tune currents through these FETs in a large ***,the MBT-ML has a strong response to *** results uncover the multifunctional nature of MBT-ML,pave the road for its applications in diverse next-generation semiconductor spin electric devices.

关键词： temperature ideality transport

A review of the estimation of downward surface shortwave radiation based on satellite data:Methods, progress and problems

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Science China Earth Sciences 2020年第6期63卷 774-789页

作者： Husi LETU Jiancheng SHI Ming LI tianxing wang Huazhe SHANG Yonghui LEI Dabin JI Jianguang WEN Kun YANG Liangfu CHEN Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100010China Deparment of Earth System Science Tsinghua UniversityBeijing 100049China

The estimation of downward surface shortwave radiation(DSSR)is important for the Earth’s energy budget and climate change *** review was organised from the perspectives of satellite sensors,algorithms and future trends,retrospects and summaries of the satellite-based retrieval methods of DSSR that have been developed over the past 10 *** shortwave radiation reaching the Earth’s surface is affected by both atmospheric and land surface *** recent years,studies have given detailed considerations to the factors which affect *** is important to improve the retrieval accuracy of cloud microphysical parameters and aerosols and to reduce the uncertainties caused by complex topographies and high-albedo surfaces(such as snow-covered areas)on DSSR *** review classified DSSR retrieval methods into four categories:empirical,parameterisation,look-up table and machine-learning methods,and evaluated their advantages,disadvantages and *** efforts are needed to improve the calculation accuracy of atmospheric parameters such as cloud,haze,water vapor and other land surface parameters such as albedo of complex terrain and bright surface,organically combine machine learning and other methods,use the new-generation geostationary satellite and polar orbit satellite data to produce highresolution DSSR products,and promote the application of radiation products in hydrological and climate models.

关键词： Downward surface shortwave radiation Satellite remote sensing Cloud optical property Terrain correction

DESIGN OF MICROPHYSIOMETER BASED ON MULTIPARAMETER CELL-BASED BIOSENSORS FOR QUICK DRUG ANALYSIS

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Journal of Innovative Optical Health Sciences 2012年第1期5卷 36-47页

作者： NING HU DA HA CHENGXIONG WU GONG CHENG HUI YU tianxing wang JIEYING WU HUA CAI QINGJUN LIU PING wang Biosensor National Special Laboratory Key Laboratory for Biomedical Engineering of Education Ministry Department of Biomedical Engineering Zhejiang University Hangzhou 310027P.R.China ACEA Bioscience Inc.West Lake Technology and Economy Park Hangzhou 310030 P.R.China

Cellular metabolism arouses the changes of substance in extracellular physiological microenvironment,and the metabolic level reflects the physiological state of *** paper developed a novel microphysiometer automatic analysis instrument based on multiparameter cell-based biosensors for quick drug *** study included the multiparameter cell-based biosensors,cell culture chamber,drug auto-injection detection and *** analysis instrument was capable of real-time detection for the acidic product and other chemical parameters generated by the cellular metabolism in the ***,the paper employs human breast cancer cell line MCF-7 and drug experiments to verify the performance of microphysiometer,and study effects of different drugs on cell ***,the research explores drug analysis method of the multiparameter *** results showed that the cell-based microphysiometer system provides a utility platform for rapid,long-term and automatic cell physiological environment detection and drug analysis.

关键词： Microphysiometer multiparameter cell-based biosensor extracellular acidification cancer cells drug analysis

A biosensing system employing nanowell microelectrode arrays to record the intracellular potential of a single cardiomyocyte

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Microsystems & Nanoengineering 2022年第3期8卷 185-198页

作者： Yuting Xiang Haitao Liu Wenjian Yang Zhongyuan xu Yue Wu Zhajian Tang Zhjing Zhu Zhiyong Zeng Depeng wang tianxing wang Ning Hu Diming Zhang Department of Obstetrics and Gynecology Affiliated Dongguan People's HospitalSouthern Medical UniversityDongguan 523058China Research Center for Inelligent Sensing Systems Zhejiang LaboratoryHangzhou 311100China Research Center for Humanoid Sensing Zhejiang LaboratoryHangzhou 311100China Key Laboratory of Novel Target and Drug Study for Neural Repair of Zhejiang Province School of MedicineSchool of Computer&Computing ScienceZhejiang University City CollegeHangzhou 310015China School of Brain Science and Brain Medicine Zhejiang UniversityHangzhou 310058China School of Automation Nanjing University of Science and TechnologyNanjing 210094China College of Energy and Power Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China E-Link Care Meditech Co. LtdHangzhou 310011China ZJU-Hangzhou Global Scientific and Technological Innovation Center Department of ChemitryZhejiang UniversityHangzhou 310058China

Electrophysiological recording is a widely used method to investigate cardiovascular pathology,pharmacology and developmental *** arrays record the electrical potential of cells in a minimally invasive and highthroughput ***,commonly used microelectrode arays primarily employ planar microelectrodes and cannot work in applications that require a recording of the intracellular action potential of a single *** this study,we proposed a novel measuring method that is able to record the intracellular action potential of a single cardiomyocyte by using a nanowell patterned microelectrode array(NWMEA).The NWMEA consists of five nanoscale wells at the center of each circular planar *** pulse electroporation was applied to the NWMEA to penetrate the cardiomyocyte membrane,and the intracellular action potential was continuously *** intracellular potential recording of cardiomyocytes by the NWMEA measured a potential signal with a higher quality(213.76±25.85%),reduced noise root-mean-square(~33%),and higher signal-to-noise ratio(254.36±12.61%)when compared to those of the extracellular *** to previously reported nanopillar microelectrodes,the NWMEA could ensure single cell electroporation and acquire high-quality action potential of cardiomyocytes with reduced fabrication *** NWMEA-based biosensing system is a promising tool to record the intracellular action potential of a single cell to broaden the usage of microelectrode arrays in electrophysiological investigation.

关键词： arrays potential record

Algorithm of Micro-Grooving and Imaging Processing for the Generation of High-Resolution Structural Color Images

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Nanomanufacturing and Metrology 2020年第3期3卷 187-198页

作者： Tianfeng Zhou Yupeng He tianxing wang Xiaobin Dong Peng Liu Wenxiang Zhao Yao Hu Jiwang Yan Key Laboratory of Fundamental Science for Advanced Machining.Beijing Institute of Technology Beijing 100081China Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology Beijing Institute of TechnologyBeijing 100081China Department of Mechanical Engineering Faculty of Science and TechnologyKeio UniversityYokohama 223-8522Japan

The use of submicron structures for structural coloration of surfaces has broad applications for color filters,projection displays,virtual reality,and ***,structural color images lack high resolution due to low manufacturing *** this study,the axial-feed fly cutting(AFC)method is proposed to fabricate submicron grooves for the diffraction of visible light to create structural color *** establish the relationship between the color information in the pixels of the original image and the parameters of the array units corresponding to the *** algorithm to determine groove spacing and the tool path is established,and array units with the desired groove spacing are machined to reproduce the structural color *** submicron grooves fabricated by AFC have high quality and good *** to the excellent diffraction performance of the machined grooves,images with high saturation and resolution can be *** is verified that images with various colors can be efficiently fabricated using the proposed method and algorithm.

关键词： Subniicron structure Microgroove Structural coloration Structural-color image Fly cutting Micromachining

Passively harmonic mode-locked erbium-doped fiber laser at a 580 MHz repetition rate based on carbon nanotubes film

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Chinese Optics Letters 2018年第2期16卷 117-121页

作者： Qianqian Huang tianxing wang Chuanhang Zou Mohammed AIAraimi Aleksey Rozhin Chengbo Mou Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai UniversityShanghai 200072China Aston Institute of Photonic Technologies(AIPT) Aston UniversityBirminghamB47ETUnited Kingdom Nanoscience Research Croup Aston UniversityBirmingham B47ETUnited Kingdom Al Musanna College of Technology MuladdahA1 Musanna P.C.314Sultanate of Oman

We propose and demonstrate a passively harmonic mode-locked erbium-doped fiber laser(EDFL)using carbon nanotubes polyvinyl alcohol(CNTs-PVA)*** laser allows generation of the pulses with a repetition rate of 580 MHz,which corresponds to the 22nd harmonics of a 26.3 MHz fundamental repetition rate under 323 mW pump power.A particularly noteworthy feature of the pulses is the super-mode suppression ratio(SMSR),which is over 40 dB,indicating a stable operation.

关键词： Carbon nanotubes Erbium fibers Fiber devices Fiber lasers Optical networks Semiconductor saturable absorber mirrors

Observation of 550 MHz passively harmonic mode-locked pulses at L-band in an Er-doped fiber laser using carbon nanotubes film

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Chinese Physics B 2018年第9期27卷 114-118页

作者： Qianqian Huang Chuanhang Zou tianxing wang Mohammed A Araimi Aleksey Rozhin Chengbo Mou Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai Institute for Advanced Communication and Data ScienceJoint International Research Laboratory of Specialty Fiber Optics and Advanced CommunicationShanghai UniversityShanghai 200444China Aston Institute of Photonic Technologies（AIPT） Aston UniversityBirminghamB4 7ETUnited Kingdom Nanoscience Research Group Aston UniversityBirminghamB4 7ETUnited Kingdom AI Musanna College of Technology MuladdahAI Musannat？ O.Box 191P.C.314Sultanate of Oman Key Laboratory of Materials for High Power Laser Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China

We demonstrate a passively harmonic mode-locked（PHML） fiber laser operating at the L-band using carbon nanotubes polyvinyl alcohol（CNTs-PVA） film. Under suitable pump power and an appropriate setting of the polarization controller（PC）, the 54^（th） harmonic pulses at the L-band are generated with the side mode suppression ratio（SMSR） better than 44 dB and a repetition frequency of 503.37 MHz. Further increasing the pump power leads to a higher frequency of 550 MHz with compromised stability of 38.5 dB SMSR. To the best of our knowledge, this is the first demonstration on the generation of L-band PHML pulses from an Er-doped fiber laser based on CNTs.

关键词： passively harmonic mode locking L-band Er-doped fiber laser carbon nanotubes film

介孔纳米片构筑具有微纳分级结构的ZnCo_2O_4微米花及制备高比能锂离子电池

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化工进展 2018年第6期37卷 2302-2308页

作者：王天星王贺权沈阳航空航天大学机电工程学院辽宁沈阳110136

报道了用水热法合成具有微纳分级结构的Zn Co_2O_4微米花,这种微纳分级结构在纳米尺度上是平均厚度为90nm的纳米片,并且纳米片上分布着4~12nm的介孔,借此可以极大地提高电极材料与电解液的接触面积;卷曲的纳米片进一步组装成尺度为2~4μ... 详细信息

报道了用水热法合成具有微纳分级结构的Zn Co_2O_4微米花,这种微纳分级结构在纳米尺度上是平均厚度为90nm的纳米片,并且纳米片上分布着4~12nm的介孔,借此可以极大地提高电极材料与电解液的接触面积;卷曲的纳米片进一步组装成尺度为2~4μm的具有玫瑰花状的微米花,通过微米尺度的3D结构可以防止电极材料在充放电过程中发生堆叠。研究表明这种微纳分级结构的电极材料适用于制备高比能的锂离子电池,并表现出良好的充放电能力、循环稳定性和倍率性能。如在200m A/g电流密度下经140次循环后放电容量高达935m Ah/g;在1000m A/g电流密度下经250次循环后放电容量仍达到567.4m Ah/g。

关键词：钴酸锌锂离子电池纳米片水热法表面沉淀负极

A review of the techniques for the mold manufacturing of micro/nanostructures for precision glass molding

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International Journal of Extreme Manufacturing 2021年第4期3卷 23-54页

作者： Tianfeng Zhou Yupeng He tianxing wang Zhanchen Zhu Ruzhen Xu Qian Yu Bin Zhao Wenxiang Zhao Peng Liu Xibin wang School of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120People’s Republic of China

Micro/nanostructured components play an important role in micro-optics and optical engineering,tribology and surface engineering,and biological and biomedical engineering,among other *** glass molding technology is the most efficient method of manufacturing micro/nanostructured glass components,the premise of which is meld manufacturing with complementary micro/*** mold manufacturing methods have been developed to fabricate extremely small and high-quality micro/nanostructures to satisfy the demands of functional micro/nanostructured glass components for various ***,the service performance of the mold should also be carefully *** paper reviews a variety of technologies for manufacturing micro/nanostructured *** authors begin with an introduction of the extreme requirements of mold *** following section provides a detailed survey of the existing micro/nanostructured mold manufacturing techniques and their corresponding mold materials,including nonmechanical and mechanical *** paper concludes with a detailed discussion of the authors recent research on nickel-phosphorus(Ni-P)mold manufacturing and its service performance.

关键词： precision glass molding mold manufacturing micro/nanostructure mold material extreme features