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Synthesis of two-dimensional transition metal dichalcogenides for electronics and optoelectronics

InfoMat 2021年第4期3卷 362-396页

作者： Min Wu Yonghong Xiao Yang Zeng yuanliang zhou Xiangbin Zeng Lining Zhang Wugang Liao College of Electronic and Information Engineering Insitute of Microscale Opteletronics Shenzhen Engineering Laboratory of Phosphorene and OptoelectronicsSZU-NUS Collaborative Innovation Centre for Optoelectronic Science and TechnologyKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceShenzhen UniversityShenzhenPeople's Republic of China Shenzhen Geim Graphene Center Tsinghua Berkeley Shenzhen Institute and Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhenPeople's Republic of China Laboratory for Optoeletronic Devices and Informnation Integration School of Optical and electronic InformationHuazhong Universty of Science and TechnologyWuhanPeople's Republic of China School of Electronic and Computer Engineering Peking UniversityShenzhenPeople's Republic of China

Tremendous efforts have been devoted to preparing the ultrathin two-dimensional(2D)transition-metal dichalcogenides(TMDCs)and TMDCS-based heterojunctions owing to their unique properties and great potential applications in next generation electronics and optoelectronics over the past ***,to fulfill the demands for practical applications,the batch production of 2D TMDCs with high quality and large area at the mild condi-tions is still a *** feature article reviews the state-of-the art research progresses that focus on the preparation and the applications in elec-tronics and optoelectronics of 2D TMDCs and their van der Waals ***,the preparation methods including chemical and physical vapor deposition growth are comprehensively ***,recent progress on the application of fabricated 2D TMDCs based materials is revealed with particular attention to electronic(eg,field effect transistors and logic circuits)and optoelectronic(eg,photodetectors,photovoltaics,and light emitting diodes)***,the challenges and future prospects are considered based on the current advance of 2D TMDCs and related heterojunctions.

关键词： electronic and optoelectronic application transition metal dichalcogenides two-dimensional materials van der Waals heterojunctions

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Enhancement of holding voltage by a modified low-voltage trigger silicon-controlled rectifier structure for electrostatic discharge protection

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Chinese Physics B 2023年第2期32卷 514-518页

作者：陈远康周远良蒋杰饶庭柯廖武刚刘俊杰 College of Electronics and Information Engineering Shenzhen UniversityShenzhen 518060China

A novel structure of low-voltage trigger silicon-controlled rectifiers(LVTSCRs) with low trigger voltage and high holding voltage is proposed for electrostatic discharge(ESD) protection. The proposed ESD protection device possesses an ESD implant and a floating structure. This improvement enhances the current discharge capability of the gate-grounded NMOS and weakens the current gain of the silicon-controlled rectifier current path. According to the simulation results, the proposed device retains a low trigger voltage characteristic of LVTSCRs and simultaneously increases the holding voltage to 5.53 V, providing an effective way to meet the ESD protection requirement of the 5 V CMOS process.

关键词： electrostatic discharge floating n-well low-voltage trigger silicon-controlled rectifier

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De novo origination of the micropeptide controlling kernel dehydration in maize

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Science China Life Sciences 2025年

作者： yuanliang Liu Manman Li Mingliang Xu State Key Laboratory of Plant Environmental Resilience College of Agronomy and Biotechnology National Maize Improvement Center Center for Crop Functional Genomics and Molecular Breeding China Agricultural University

The mechanization of maize harvest plays a pivotal role in global food security and agricultural productivity. However, in China and many other countries, maize harvesting remains largely unmechanized, with less than ...

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Buildup of Sn@CNT nanorods by in-situ thermal plasma and the electronic transport behaviors

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Science China Materials 2018年第12期61卷 1605-1613页

作者： Dongxing Wang Da Li Javid.Muhammad yuanliang zhou Xuefeng Zhang Ziming Wang Shanshan Lu Xinglong Dong Zhidong Zhang Key Laboratory of Materials Modification by Laser Ion and Electron Beams (Ministry of Education (MoE)) School of Materials Science and Engineering Dalian University of Technology Shenyang National Laboratory for Materials Science Institute of Metal Research International Centre for Materials Physics Chinese Academy of Sciences Key Laboratory for Anisotropy and Texture of Materials (MoE) School of Materials and Engineering Northeastern University

Monocrystal Sn nanorods encapsulated in the multi-walled carbon nanotubes(Sn@CNT NRs), were fabricated by a facile arc-discharge plasma process, using bulk Sn as the raw target and methane as the gaseous carbon source. The typical Sn@CNT NRs are 40–90 nm in diameter and400–500 nm in length. The CNTs protect the inner Sn nanorods from oxidation. Temperature dependent I–V curve and electronic resistance reveal that the dielectric behavior of Sn@CNT NRs is attributed to the multi-wall CNTs shell and follows Mott-David variable range hopping [ln R(T)∝T-1/4]model above the superconducting critical temperature of3.69 K, with semiconductor–superconductor transition(SST).Josephson junction of Sn/CNT/Sn layered structure is responsible for the superconducting behavior of Sn@CNT NRs.

关键词： carbon nanotubes nanocomposite dielectric variable range hopping Josephson junction

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经尿道电切术联合吡柔比星灌注治疗浅表性膀胱肿瘤的临床效果

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系统医学 2021年第6期6卷 8-10页

作者：周元亮山东省聊城市冠县中心医院泌尿外科山东聊城252500

目的探究浅表性膀胱肿瘤实施经尿道电切术联合吡柔比星灌注的疗效。方法将该院自2018年4月—2020年4月期间收治的84例浅表性膀胱肿瘤患者采取抽签法随机分为试验组与参照组,每组42例。参照组患者实施经尿道电切术联合丝裂霉素灌注治疗,... 详细信息

目的探究浅表性膀胱肿瘤实施经尿道电切术联合吡柔比星灌注的疗效。方法将该院自2018年4月—2020年4月期间收治的84例浅表性膀胱肿瘤患者采取抽签法随机分为试验组与参照组,每组42例。参照组患者实施经尿道电切术联合丝裂霉素灌注治疗,试验组患者实施经尿道电切术联合吡柔比星灌注治疗,对比两组患者治疗指标、治疗效果及并发症发生情况。结果试验组患者aFGF为(6.28±0.72)pg/L、bFGF为(7.24±0.95)pg/L、VEGF为(20.21±2.63)pg/L,低于参照组的(11.25±1.12)、(12.83±1.49)、(31.85±3.95)pg/L,差异有统计学意义(t=24.191、20.501、15.896,P<0.001);试验组治疗总有效率为97.62%,高于参照组的80.95%,差异有统计学意义(χ^(2)=4.480,P=0.034);试验组并发症发生率为4.76%,低于参照组的26.19%,差异有统计学意义(χ^(2)=7.372,P=0.007)。结论经尿道电切术与吡柔比星灌注联合治疗浅表性膀胱肿瘤可有效改善临床症状,提高治疗效果,安全性较高,值得推广。

关键词：经尿道电切术吡柔比星灌注浅表性膀胱肿瘤

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Microstructure and Wear/corrosion Resistance of Stainless Steel Laser-alloyed with Mn+W_(2)C, Mn+NiWC and Mn+SiC

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 283-294页

作者： zhou Rui DIAO Xiaogang SUN Yixin School of Metallurgical Engineering Jiangsu University of Science and TechnologyZhangjiagang 215600China CITIC Heavy Cast Iron Industry Co. Ltd.Luoyang 417039China

In-situ formed high Mn steel coating reinforced by carbides was formed by laser surface alloying(LSA).Laser alloyed layers on 1Cr18Ni9Ti steel with Mn+W_(2)C(specimen A),Mn+NiWC(specimen B)and Mn+SiC(specimen C)powders were fabricated to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel blades in high speed *** evolution,phases,element distribution,microhardness,wear and corrosion behavior of the laser alloyed layers were *** indicated that high Mn steel matrix composites with undissolved W_(2)C,WC and other in-situ formed carbides were formed by LSA with Mn+W_(2)C and Mn+NiWC while SiC totally dissolved into the high Mn matrix when adding Mn+*** as the binding phase in Ni-WC powder decreased the crack sensitivity of the alloyed layer as compared with the addition of W_(2)C *** improvement in average microhardness was achieved in the matrix in specimen A,B and C,with the value of 615,602 and 277 HV_(0.5),while that of the substrate was 212 HV_(0.5).The increase of microhardness,wear and corrosion resistance is highly corelated to microstructure,formed phases,type and content of carbides,micro-hardness and toughness of the alloyed layers.

关键词： laser surface alloying stainless steel carbide type microstructure wear and corrosion resistance

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Distributed fiber optic sensing system for vibration monitoring of 3D printed bridges

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Optoelectronics Letters 2025年第1期21卷 28-34页

作者： ZHAO Shuai zhou Ran LUO Mingming LIU Jianfei LIU Xiongfei zhou Tao School of Electronic Information Engineering Hebei University of Technology Tianjin Key Laboratory of Electronic Materials and Devices School of Civil Engineering and Transportation Hebei University of Technology Tianjin Jinhang Institute of Technical Physics

The fiber optic sensing technology provides data support in structural health monitoring of the macro facilities, including design, construction, and maintenance of bridges, tunnels, ports and other infrastructures. In this paper, a distributed vibration sensing system is proved to be responsive to a single touch over a 1.8-m-long equivalent fiber segment, covering a vibration frequency from 5 Hz to 25 kHz. The sensing fiber was arranged as an S type layout on the bridge to recognize the standing state, windblown disturbance, and walking vibration. Moreover, the knocking and climbing events are recognized fiber laying spinning lines and hanging on the fences, respectively. The demonstration shows an accurate positioning and sensitive vibration monitoring applied on the automated three-dimensional(3D) printed bridge, which is applicable to all kinds of 3D printed facilities as intelligent sensory neuro-networks.

关键词： Spinning (fibers)

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Prussian Blue Analogue‑Templated Nanocomposites for Alkali‑Ion Batteries:Progress and Perspective

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Nano-Micro Letters 2025年第1期17卷 216-261页

作者： Jian‑En zhou Yilin Li Xiaoming Lin Jiaye Ye Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006People’s Republic of China School of Chemistry and Physics Faculty of ScienceQueensland University of Technology2 George StreetBrisbaneQLD 4000Australia Centre for Materials Science Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia

Lithium-ion batteries(LIBs)have dominated the portable electronic and electrochemical energy markets since their commercialisation,whose high cost and lithium scarcity have prompted the development of other alkali-ion batteries(AIBs)including sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs).Owing to larger ion sizes of Na^(+)and K^(+)compared with Li^(+),nanocomposites with excellent crystallinity orientation and well-developed porosity show unprecedented potential for advanced lithium/sodium/potassium *** enticing open rigid framework structures,Prussian blue analogues(PBAs)remain promising self-sacrificial templates for the preparation of various nanocomposites,whose appeal originates from the well-retained porous structures and exceptional electrochemical activities after thermal *** review focuses on the recent progress of PBA-derived nanocomposites from their fabrication,lithium/sodium/potassium storage mechanism,and applications in AIBs(LIBs,SIBs,and PIBs).To distinguish various PBA derivatives,the working mechanism and applications of PBA-templated metal oxides,metal chalcogenides,metal phosphides,and other nanocomposites are systematically evaluated,facilitating the establishment of a structure–activity correlation for these *** on the fruitful achievements of PBA-derived nanocomposites,perspectives for their future development are envisioned,aiming to narrow down the gap between laboratory study and industrial reality.

关键词： Prussian blue analogues Self-sacrificial template Lithium-ion batteries Sodium-ion batteries Potassium-ion batteries

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Grid-Connected/Islanded Switching Control Strategy for Photovoltaic Storage Hybrid Inverters Based on Modified Chimpanzee Optimization Algorithm

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Energy Engineering 2025年第1期122卷 265-284页

作者： Chao zhou NarisuWang Fuyin Ni Wenchao Zhang School of Electrical and Information Engineering Jiangsu University of TechnologyChangzhou213001China Jiangsu Key Laboratory of Power Transmission&Distribution Equipment Technology Jiangsu University of TechnologyChangzhou213001China

Uneven power distribution,transient voltage,and frequency deviations are observed in the photovoltaic storage hybrid inverter during the switching between grid-connected and island *** response to these issues,this paper proposes a grid-connected/island switching control strategy for photovoltaic storage hybrid inverters based on the modified chimpanzee optimization *** proposed strategy incorporates coupling compensation and power differentiation elements based on the traditional droop ***,it combines the angular frequency and voltage amplitude adjustments provided by the phase-locked loop-free pre-synchronization control *** pre-synchronization is achieved by regulating the virtual current to zero and aligning the photovoltaic storage hybrid inverter with the grid ***,two novel operators,learning and emotional behaviors are introduced to enhance the optimization precision of the chimpanzee *** operators ensure high-precision and high-reliability optimization of the droop control parameters for photovoltaic storage hybrid inverters.A Simulink model was constructed for simulation analysis,which validated the optimized control strategy’s ability to evenly distribute power under load *** strategy effectively mitigated transient voltage and current surges during mode ***,seamless and efficient switching between gridconnected and island modes was achieved for the photovoltaic storage hybrid *** enhanced energy utilization efficiency,in turn,offers robust technical support for grid stability.

关键词： Photovoltaic storage hybrid inverters modified chimpanzee optimization algorithm droop control seamless switching

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Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao zhou Xiongbin Luo Hang Li Shan Guo Zhuang Tong Xiaotao zhou Xu Li Zhaohui Hou Shuquan Liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Solvation

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