检索结果-南通市图书馆

Chinese Physics B 2024年第4期33卷 339-343页

作者：郑煜臻熊康林冯加贵杨辉 school of nano-tech and nano-bionics University of Science and Technology of ChinaHefei 230026China Suzhou Institute of nano-tech and nano-bionics Chinese Academy of SciencesSuzhou 215123China

A Josephson traveling wave parametric amplifier(JTWPA),which is a quantum-limited amplifier with high gain and large bandwidth,is the core device of large-scale measurement and control systems for quantum computing.A typical JTWPA consists of thousands of Josephson junctions connected in series to form a transmission line and hundreds of shunt LC resonators periodically loaded along the line for phase *** the variation of these capacitors and inductors can be detrimental to their high-frequency characteristics,the fabrication of a JTWPA typically necessitates precise processing *** guide the fabrication process and further improve the design for manufacturability,it is necessary to understand how each electronic component affects the *** this paper,we use the harmonic balance method to conduct a comprehensive study on the impact of nonuniformity and fabrication yield of the electronic components on the performance of a *** results provide insightful and scientific guidance for device design and fabrication processes.

关键词： Josephson traveling wave parametric amplifier(JTWPA) harmonic balance method yields uniformity

维普期刊数据库

A Design of 2-Stage Voltage Ramp-Up SRAM Physical Unclonable Function

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2024年第2期33卷 371-379页

作者： Minte SONG Nan LIU Shuaiyang ZHOU Zhengguang WANG Zhanqiang RU Peng DING Wei HUANG Helun SONG school of nano-tech and nano-bionics University of Science and Technology of China Suzhou Institute of nano-tech and nano-bionics Chinese Academy of Sciences

Silicon physical unclonable function（PUF） implemented by static random access memory（SRAM）exists inherent demerit of unstable cells due to noise of environment and circuits, which significantly restricts its reproducibility. In this paper, a 16T SRAM cell with reset-delay circuit and a 2-stage voltage ramp up is fabricated and reported. Compared to conventional SRAM structure, each PUF cell adds a pair of pull-up PMOS（P-channel metal oxide semiconductor） and pull-down NMOS（N-channel metal oxide semiconductor） controlled by reset and delayedreset signals respectively, resulting in two positive feedback stages with different amplification coefficients when the voltage is ramped up. PUF array consists of 4064 cells, 322 dummy cells and a group of 8 series-connected inverters with an area of 304 μm × 650 μm to match the digital post-processing module. PUF test chip was fabricated in HHGrace 110 nm platform with total area 1140 × 1140 μm2. The average HDintra（intra-chip Hamming distance, also bit error rate, BER） and HDinter（inter-chip Hamming distance） values of the 50 PUF chips in SOP16 package measured at normal point（1.5 V/25 ℃） were 1.92% and 49.85%, respectively.

关键词： Semiconductor device measurement Circuits Bit error rate Metals Aging Physical unclonable function Reproducibility of results

Vertical two-dimensional WS_(2)flakes grown on flexible CNT film for excellent electrochemical performance

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第1期43卷 164-174页

作者： Qian Gong Jing-Yun Zou Ming Ren Si-Qi Zhu Yu-Rong Zhou Li-Ming Zhao Jian Chen Yu-Long Wu Jiang-Tao Di Li-Xing Kang Qing-Wen Li school of nano-tech and nano-bionics University of Science and Technology of ChinaHefei 230026China Key Laboratory of Multifunctional nanomaterials and Smart Systems Division of Advanced MaterialsSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Jiangsu Key Laboratory of Micro and nano Heat Fluid Flow technology and Energy Application School of Physical Science and TechnologySuzhou University of Science and TechnologySuzhou 215009China

Soft electrochemical actuators that can generate mechanical motions in response to electrical stimuli can be used as artificial muscles in microscale *** electrode materials are the key component of the electrochemical actuator because they limit the ion diffusion and accumulation processes and thus affect the deformation in fast response-time and potential engineering ***-dimensional materials,such as one-dimensional(1D)CNT and two-dimensional(2D)vertically stood WS_(2),are great electrode due to their good electrochemical stability and high surface-to-volume ratios,but show limited performances when being used on their own in the actuators because of low reconstruction or low conductivity.A combination of 1D CNT and 2D WS_(2)could form a heterojunction with both high electrochemical activity and great mechanical ***,by depositing highly disordered graphene nanosheets(HDGNs)on CNT films and then WS_(2)on the formed low-dimensional nanocarbon film,a hybrid WS_(2)/HDGN/CNT film was synthesized through a multistep CVD *** grown WS_(2)nanosheets were achieved by taking advantage of HDGNs which limits CNTs ***,the volume expansion caused by the transition from WO_(3)to WS-2can force the vertical growth of WS_(2).This hybrid film shows excellent electrochemical properties,such as high specific capacitance and high rate *** actuators based on the WS_(2)/HDGN/CNT films show good actuating performance,including stability and reconfigurability.

关键词： CNT Graphene Vertically growth WS_(2) Electrochemical actuators

维普期刊数据库

Suppression of the regrowth interface leakage current in AlGaN/GaN HEMTs by Fe doped GaN substrate

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2024年第6期67卷 461-462页

作者： Xiao WANG Zhi-Yu LIN Yuan-Hang SUN Long YUE Yu-Min ZHANG Jian-Feng WANG Ke XU school of nano-tech and nano-bionics University of Science and Technology of China Suzhou Institute of nano-tech and nano-bionics Chinese Academy of Sciences Information Materials Research Department Suzhou laboratory Suzhou nanowin Science and technology Co. Ltd. Jiangsu Institute of Advanced Semiconductors

In the process of homoepitaxy AlGaN/GaN heterojunction by metal-organic chemical vapor deposition (MOCVD) on free-standing substrates,Si impurities from the air and reaction chamber accumulate at the regrowth interfac...

关键词：

同方期刊数据库

Flexible bidirectional self-powered photodetector with significantly reduced volume and accelerated response speed based on hydrogel and lift-off GaN-based nanowires

在线全文

学校读者我要写书评

暂无评论

Fundamental Research 2024年第2期4卷 369-378页

作者： Min Jiang Yukun Zhao Penghui Zheng Jianya Zhang Wenxian Yang Min Zhou Yuanyuan Wu Renjun Pei Shulong Lu Key Lab of nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)Suzhou 215123China school of nano-tech and nano-bionics University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of nano-Bio Interface Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Nanchang Research Institute Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesNanchang 330200China

Due to the wide range of potential applications for next-generation multi-functional devices,the flexible selfpowered photodetector(PD)with polarity-switchable behavior is essential but very challenging to be ***,a wearable bidirectional self-powered PD based on detached(Al,Ga)N and(In,Ga)N nanowires has been proposed and demonstrated *** from the photovoltage-competing dynamics across(Al,Ga)N and(In,Ga)N nanowire photoelectrodes,such PD can generate the positive(33.3 mA W−1)and negative(-0.019 mA W−1)photo-responsivity under ultraviolet(UV)and visible illumination,respectively,leading to the bidirectional photocurrent *** to the introduction of quasi solid-state hydrogel,the PD can work without the liquid-electrolyte,thus remarkably reducing the volume from about 482 cm3 to only 0.18 ***,the use of hydrogel is found to enhance response speed in the UV range by reducing the response time for more than 95%,which is mainly attributed to the increased open circuit potential and reduced ion transport *** the GaN connecting segment is pretty thin,the piezoelectric charges generated by stress are proposed to have only a limited effect on the photocurrent ***,both the stable on-off switching characteristics and photocurrent densities can still be achieved after being bent 400 *** an excellent flexibility,this work creates opportunities for technological applications of bidirectional photocurrent PDs in flexible optoelectronic devices,e.g.,wearable intelligent sensors.

关键词： Flexible photodetector Bidirectional photocurrent Lift-off GaN-based nanowires Hydrogel Self-powered device

Effects of gallium surfactant on AlN thin films by microwave plasma chemical vapor deposition

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Semiconductors 2024年第9期45卷 53-60页

作者： Lu Wang Xulei Qin Li Zhang Kun Xu Feng Yang Shaoqian Lu Yifei Li Bosen Liu Guohao Yu Zhongming Zeng Baoshun Zhang school of Physics Changchun University of Science and TechnologyChangchun 130013China nanofabrication Facility Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China

In this work, AlN films were grown using gallium (Ga) as surfactant on 4° off-axis 4H-SiC substrates via microwave plasma chemical vapor deposition (MPCVD). We have found that AlN growth rate can be greatly improved due to the catalytic effect of trimethyl-gallium (TMGa), but AlN crystal structure and composition are not affected. When the proportion of TMGa in gas phase was low, crystal quality of AlN can be improved and three-dimensional growth mode of AlN was enhanced with the increase of Ga source. When the proportion of TMGa in gas phase was high, two-dimensional growth mode of AlN was presented, with the increase of Ga source results in the deterioration of AlN crystal quality. Finally, employing a two-step growth approach, involving the initial growth of Ga-free AlN nucleation layer followed by Ga-assisted AlN growth, high quality of AlN film with flat surface was obtained and the full width at half maximum (FWHM) values of 415 nm AlN (002) and (102) planes were 465 and 597 arcsec.

关键词： AlN thin film MPCVD gallium surfactant nucleation layer laser

Electrical control of excitonic oscillator strength and spatial distribution in a monolayer semiconductor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

nano Research 2024年第9期17卷 8424-8430页

作者： Yanming Wang Junrong Zhang Tianhua Ren Meng Xia Long Fang Xiangyi Wang Xingwang Zhang Kai Zhang Junyong Wang school of nano-tech and nano-bionics University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of nanophotonic Materials and Devices&Key Laboratory of nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123China Institute of Applied Physics and Materials Engineering University of MacaoTaipaMacao 999078China College of New Energy Inner Mongolia University of TechnologyHohhot 010051China

Electrical modulation of luminescence is significant to modern light-emitting *** transition metal dichalcogenides are emerging direct-bandgap luminescent materials with unique excitonic properties,and the multiple exciton complexes provide new opportunities to modulate the property of luminescence in atomically thin ***,we report an electrical control of exciton emission in the oscillator strength and spatial distribution of excitons in a monolayer *** modulation of excitonic emission intensity with a degree of modulation of~92%has been demonstrated by an electric field at room *** spatial carrier redistribution tuned by a lateral electric field results in distinct excitonic emission patterns by *** modulation approach to exciton oscillator strength and distribution provides an efficient way to investigate the exciton diffusion dynamics and to construct electrically tunable optoelectronic devices.

关键词： monolayer semiconductor exciton electrical modulation spatial distribution

Realize ultralow-energy-consumption photo-synaptic device based on a single(Al,Ga)N nanowire for neuromorphic computing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

nano Research 2024年第3期17卷 1933-1941页

作者： Xiushuo Gu Min Zhou Yukun Zhao Qianyi Zhang Jianya Zhang Yonglin Huang Shulong Lu College of Electronic and Optical Engineering&College of Flexible Electronics(Future technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China Key Lab of nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)Suzhou 215123China school of nano-tech and nano-bionics University of Science and Technology of ChinaHefei 230026China Jiangsu Key Laboratory of Micro and nano Heat Fluid Flow technology and Energy Application School of Physical Science and TechnologySuzhou University of Science and TechnologySuzhou 215009China

The rapid development of artificial intelligence poses an urgent need for low-energy-consumption and small-sized artificial photonic ***,it is pretty novel to demonstrate a light-stimulated synaptic device based on a single(Al,Ga)N nanowire *** to the presence of vacancy defects in the single nanowire,the artificial synaptic device can simulate multiple functions of biological synapses under stimulation of both 310 and 365 nm light photons,including paired-pulse facilitation,spike timing dependent plasticity,and memory learning *** energy consumption of artificial synaptic device can be reduced as little as 5.58×10^(-13) J,which is close to that of the biological synapse in human ***,the synaptic device is demonstrated to have the high stability for both long-time stimulation and long-time *** on the experimental conductance of long-term potentiation and long-term depression,the simulated three-layer neural network can achieve a high recognition rate of 92%after only 10 training *** a brain-like behavior,the single-nanowire-based synaptic devices can promote the development of visual neuromorphic computing technology and artificial intelligence systems requiring ultralow energy consumption.

关键词： single(Al Ga)N nanowire light-stimulated synaptic device low-energy-consumption neural network

Decoding bone-inspired and cell-instructive cues of scaffolds for bone tissue engineering

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Engineered Regeneration 2024年第1期5卷 21-44页

作者： Zahid Hussain Shah Mehmood Xingzhu Liu Yuanshan Liu Guocheng Wang Renjun Pei school of nano-tech and nano-bionics University of Science and Technology of China(USTC)Hefei 230026PR China CAS Key Laboratory for nano-Bio Interface Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123PR China Research Center for Human Tissues and Organs Degeneration Shenzhen Institute of Advanced Technology(SIAT)Chinese Academy of ScienceShenzhen 518055PR China

Bone fractures are common occurrence in clinical settings,creating a high demand for effective repair ***,limited graft availability,donor site morbidities,unpredictable clinical outcomes,immunologic reactions,infection risks,and geometrical mismatching concerns hampered tissue graft use and underscored the need for scaffolds for more effective bone reconstructions due to their tunable *** progress has been carried out in past decade in the fields of nanoceramics synthesis,bioconjugate chemistry,and composite material *** review outlines hierarchical structures and biology of bone tissue,materialistic compo-nents of scaffolds(bioceramics,polymers,bioactive drugs),featured scaffolding strategies(nanofibers,hydrogels,aerogels,bioprinting,and fiber-reinforced composite),and emphasis that hierarchical and physiochemical char-acteristics of bone should be used as an inspiration for scaffold *** review discussed how differences in materiobiological aspects of scaffolds,such as polymer/bioceramic nanocomposite,mineralized nanocomposite,matrix-rich nanocomposite,3D microenvironmental cues,pore space cues,mechanical cues,usage of physical stimulation(magnetic,electroactive,and photoactivated cues),surface cues(wettability,roughness,textured,and surface charge),and biointerface cues(cell-biomaterial interactions,cell-selective homing,and cell regula-tory strategies)modulate cellular and biological response for bone tissue *** study further outlines the challenges and benefits of integrating materiobiological cues of scaffolds for bone tissue engineering.

关键词： Bone substitute Scaffolds Mineralization Materiobiology Bone tissue engineering

Multi-site Passivation of ZnO Metal Oxides via Biomolecules for Efficient and Highly Stable Organic Solar Cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2024年第14期42卷 1582-1592页

作者： Irfan Ismail Maria Khalil Xiaomei Gao Xingze Chen Muhammad Jawad Rong Huang Zhiyun Li Emmanuel Acheampong Tsiwah Wei-shi Li Qun Luo Chang-Qi Ma i-Lab&Printable Electronics Research Center Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)SuzhouJiangsu215123 China University of Chinese Academy of Sciences(UCAS) Beijing100040 China school of nano-tech and nano-bionics University of Science and Technology of China(USTC)HefeiAnhui230027 China Shanghai Institute of Organic Chemistry(SIOC) Chinese Academy of Sciences(CAS)Shanghai200032 China Vacuum Interconnected nanotech Workstation(nano-X) SuzhouJiangsu215123 China

ZnO nanoparticles(nps)among metal oxide(MOs)are proven to be essential electron transporting layers(ETLs)applied in organic solar cells(OSCs).However,intrinsic defects,interfacial charge recombination,and catalytic behavior towards the active layer restrict the applications of ZnO nps for efficient and long-term stable *** commonly available biomolecule cytidine 5'-monophosphate(CMP-OH)with phosphonic acid,its salt cytidine 5'-monophosphate disodium salt(CMP-ONa)with a phosphate group as an anchoring group and conjugated terminal functional in both analogous molecules provide carrier transfer bridge at bottom interface of the active *** theoretical investigations and characterizations have discovered the multi-site coordination of CMP-OH towards acceptor molecules and ZnO *** dual-side alignment of CMP analogous molecules hinders interfacial charge recombination and enhances charge transfer potential at ***,PM6:L8-BO-based OSCs with modified ETL obtain 18.13%efficiency,12%higher than that of unmodified *** higher efficiency,CMP-OH-based OSC devices illustrate remarkably improved thermal stability for 500 h at 85℃with 72%of initial PCE and operation stability for 2000 h with 90.1%of initial *** work reveals the passivation mechanism of multi-anchoring groups towards MOs and single-functional groups towards the active layer to optimize the interface for efficient and highly stable OSCs.

关键词： Organic solar cells nanoparticles Nucleotides Interfacial interactions Surface chemistry Multi-site passivation