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Symposium on VLSI technology

作者： Geonhui Han Youngdong Kim Jaeseon Kim Dongmin Kim Yoori Seo Chuljun Lee Jinmyung Choi Jinwoo Lee Dongho Ahn Sechung Oh Donghwa Lee Hyunsang Hwang Department of Material Science and Engineering Pohang University of Science and Technology (POSTECH) Pohang Korea Advanced Process Development Team 2 Samsung Electronics Gyeonggi-do Republic of Korea

ISBN: (数字)9798350361469

ISBN: (纸本)9798350361476

We firstly demonstrate highly scalable interface type RRAM based 3D V-NAND memory with WOx resistivity switching (RS) layer and IGZO selector transistor (Tr). 3D vertical interface type RRAM integrated with IGZO Tr (VB-RRAM), utilizing bypass reading between Tr and RS layer, exhibits low voltage operation (< 5 V), multi-bit (4 bit) capability, and high uniformity of the RS layer while improving the limitations of on/off ratio. Furthermore, with scaling the channel length down to 30 nm, we achieved fast switching speed (~50 us), stable endurance (> 10 7 cycles), and low switching energy consumption (5 fJ). Finally, critical V-NAND issues like read disturbance and interface layer were also evaluated.

关键词： Low voltage Energy consumption Three-dimensional displays Switches Very large scale integration Conductivity Transistors

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Designing a High Barrier, Tough and Self-Repairing Epoxy Composite Coatings with Ce-Mof Decorated 2d Α-Zrp Smart Nanofiller

SSRN

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SSRN 2024年

作者： Lv, Yiqian Zhao, Jingmao Fan, Baomin Murtaza, Hassan Wang, Jingbao Jing, Weixiao Chao, Liuwei College of Material Science and Engineering Beijing University of Chemical Technology Beijing100029 China Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing100029 China College of Chemical and Materials Engineering Beijing Technology and Business University Beijing100048 China

Synergistical passive barrier enhancement and active self-healing has been an emerging tactic for developing prominent anti-corrosion coatings. Herein, a cerium/2-methylimidazole metal-organic framework (Ce-MOF) was that is in-situ grown on ultrathin α-ZrP nanosheets with outstanding dispersibility. The parallel arrangement of α-ZrP-based nanosheets within the epoxy matrix was driven by shear force from blade-coating technology optimizing the coating's physical barrier and self-repairing capability. This advancement may herald a new era in designing smart coatings and offering potent protection against diverse corrosion types such as filiform corrosion. © 2024, The Authors. All rights reserved.

关键词： Organometallics

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Eco-Friendly In-Mold Electronics Using Polylactic Acid

Eco-Friendly In-Mold Electronics Using Polylactic Acid

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Electronics Goes Green 2012+ (EGG)

作者： Zahra Fazlali David Schaubroeck Maarten Cauwe Sibel Ügdüler Tine Van Laere Dave Manhaeghe Steven De Meester Ludwig Cardon Jan Vanfleteren Center for MicroSystem Technology imec and Ghent University Gent Belgium Laboratory for Circular Process Engineering Ghent University Belgium Centre for Polymer and Material Technologies Ghent University Gent Belgium

ISBN: (数字)9783000793301

ISBN: (纸本)9798350388220

This paper presents the feasibility of using polylactic acid polymer as the overmolding material in in-mold electronics (IME). IME represents a technology integrating flexible electronic circuits into plastics in the molding process. This approach reduces weight and material consumption and simplifies the process. The increasing applications and consumption of these products result in a growing problem of electronic waste (e-waste). This necessitates a transition towards eco-friendly in-mold electronics and responsible end-of-life solutions. Currently, the most widely used plastic in this industry is polycarbonate both as flexible substrate and molding material. This polymer is derived from petroleum-based sources. This contributes to the depletion of non-renewable sources and greenhouse gas emissions. By using biopolymers as molding material, we can potentially minimize the environmental impact associated with this type of e-waste. Polylactic acid (PLA) is a bio-based and biodegradable polymer derived from renewable plant sources. In this study, polylactic acid is used only as the overmolding material. Typically, in IME the flexible circuit is fabricated using printed electronic (PE) technology. However, due to challenges regarding the stability of assembled electronic components, a polyimide-copper (PI/Cu) flex circuit fabricated through conventional printed circuit boards (PCB) manufacturing line is used in this paper. The goal of this work is to investigate if the PLA can be separated from the flexible circuit as end-of-life strategy. The debonding strategy simplifies the reuse, refurbish, or recycle of each separated layer. The IME technology was validated by showing the functionality of two different types of test circuits to demonstrate proof of concept. The adhesive strength between flex foil and PLA was evaluated by the 180° peel test method. At the end-of-life, the debonding of PLA and flex circuit is investigated. In review, this research focuses on optim

关键词： Renewable energy sources Flexible printed circuits Adhesive strength Adhesives Reviews Electronic components Programmable logic arrays

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Formulation of a Master Recipe: A Capability Aligning Approach for Resource Allocation

Formulation of a Master Recipe: A Capability Aligning Approa...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Michael Winter Tobias Klausmann Shagufta Shagufta Torben Miny Sebastian Heppner Tobias Kleinert Information and Automation Systems for Process and Material Technology RWTH Aachen University Aachen Germany Research & Development — Systems Engineering Lenze SE Aerzen Germany

The contribution addresses the challenge of transforming a general recipe, which lacks knowledge about specific production resources, into a plant-specific master recipe in the process industry. The authors propose an approach using the concept of capabilities in manufacturing, enabled by an ontology and the Asset Administration Shell. The approach aligns required and offered capabilities at different description levels to allocate equipment to process elements and generate a master recipe in BatchML. The validation of the approach is accompanied by a procedure logic for a modular plant and discusses open challenges. In conclusion, the provided approach offers a methodical and less experience-dependent derivation of a master recipe for a manufacturing process.

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Strategic design and fabrication of MXenes-Ti_(3)CNCl_(2)@CoS_(2) core-shell nanostructure for high-efficiency hydrogen evolution

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Nano Research 2022年第7期15卷 5977-5986页

作者： Jizhou Jiang Saishuai Bai Meiqing Yang Jing Zou Neng Li Jiahe Peng Haitao Wang Kun Xiang Song Liu Tianyou Zhai School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationWuhan Institute of TechnologyWuhan 430205China College of Life and Environmental Science Hunan University of Arts and ScienceChangde 415000China Key Laboratory of Rare Mineral Ministry of Natural ResourcesGeological Experimental Testing Center of Hubei ProvinceWuhan 430034China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Institute of Chemical Biology and Nanomedicine(ICBN) State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

CoS_(2) is considered to be a promising electrocatalyst for hydrogen evolution reaction(HER).However,its further widespread applications are hampered by the unsatisfactory activity due to relatively high chemisorption energy for hydrogen ***,theoretical predictions of first-principles calculations reveal that the introduction of a Cl-terminated MXenes-Ti_(3)CNCl_(2) can significantly reduce the HER potential of CoS_(2)-based materials and the Ti_(3)CNCl_(2)@CoS_(2) core–shell nanostructure has Gibbs free energy of hydrogen adsorption(|ΔGH|)close to zero,much lower than that of the pristine CoS_(2) and Ti_(3)CNCl_(2).Inspired by the theoretical predictions,we have successfully fabricated a unique Ti_(3)CNCl_(2)@CoS_(2) core–shell nanostructure by ingeniously coupling CoS_(2) with a Cl-terminated MXenes-Ti_(3)CNCl_(2).Interface-charge transfer between CoS_(2) and Ti_(3)CNCl_(2) results in a higher degree of electronic localization and a formation of chemical ***,the Ti_(3)CNCl_(2)@CoS_(2) core–shell nanostructure achieves a significant enhancement in HER activity compared to pristine CoS_(2) and Ti_(3)CNCl_(2).Theoretical calculations further confirm that the partial density of states of CoS_(2) after hybridization becomes more non-localized,and easier to interact with hydrogen ions,thus boosting HER *** this work,the success of oriented experimental fabrication of high-efficiency Ti_(3)CNCl_(2)@CoS_(2) electrocatalysts guided by theoretical predictions provides a powerful lead for the further strategic design and fabrication of efficient HER electrocatalysts.

关键词： theoretical predictions Ti_(3)CNCl_(2)@CoS_(2)core-shell nanostructure electronic non-localization hydrogen evolution

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In-situ topotactic construction of novel rod-like Bi_(2)S_(3)/Bi_(5)O_(7)I p-n heterojunctions with highly enhanced photocatalytic activities

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Journal of materials Science & technology 2023年第4期135卷 126-141页

作者： Peng Ju Lei Hao Yu Zhang Jianchao Sun Kunpeng Dou Zhaoxia Lu Dankui Liao Xiaofan Zhai Chengjun Sun Key Laboratory of Marine Eco-Environmental Science and Technology Marine Bioresource and Environment Research CenterFirst Institute of OceanographyMinistry of Natural ResourcesQingdao266061P.R.China CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of OceanologyChinese Academy of SciencesQingdao266071P.R.China Open Studio for Marine Corrosion and Protection Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao266237P.R.China School of Environment and Material Engineering Yantai UniversityYantai264005P.R.China College of Chemistry and Chemical Engineering Guangxi Key Laboratory of Petrochemical Resources Processing and Process Enhancement TechnologyGuangxi UniversityNanning530004P.R.China College of Information Science and Engineering Ocean University of ChinaQingdao266100P.R.China

In this work,a novel Bi_(2)S_(3)/Bi_(5)O_(7)I p-n heterojunction with three-dimensional rod-like nanostructure was successfully constructed through an in-situ topotactic ion exchange approach.A possible evolution mech-anism from Bi_(5)O_(7)I nanobelts(NBs)into Bi_(2)S_(3)/Bi_(5)O_(7)I rod-like heterostructures(BSI RHs)was proposed,depicting the self-assembly process of internal Bi_(5)O_(7)I NBs and outside networks interwoven by Bi_(2)S_(3)nanorods(NRs),which abided by the Ostwald ripening and epitaxial *** to the formation of p-n heterojunction and rich oxygen vacancies(OVs),the visible-light absorption ability and separation of photogenerated charge carriers of BSI RHs were highly promoted,leading to a greatly improved photocatalytic ability than that of Bi_(2)S_(3)and Bi_(5)O_(7)***-1 exhibited the strongest photocatalytic performance,and almost all rhodamine B(RhB)and Pseudomonas aeruginosa(***)can be thoroughly removed within 90 ***,a possible photocatalytic mechanism of BSI RHs was proposed based on the tests of active species trapping,electron spin resonance(ESR),photoelectrochemistry(PEC),and photoluminescence(PL)combined with the density functional theory(DFT)simulated computation,vali-dating the dominating roles of·O_(2)^(−)and h+during the photocatalytic *** work is expected to motivate further efforts for developing novel heterostructures with highly efficient photocatalytic performances,which presents a promising application prospect in the fields of energy and environment.

关键词： Antifouling Bi_(5)O_(7) I Photocatalytic Heterostructure Bi_(2)S_(3)

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engineering single atomic ruthenium on defective nickel vanadium layered double hydroxide for highly efficient hydrogen evolution

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Nano Research 2023年第4期16卷 4612-4619页

作者： Xiaoyu Chen Jiawei Wan Meng Zheng Jin Wang Qinghua Zhang Lin Gu Lirong Zheng Xianzhu Fu Ranbo Yu College of Materials Science and Engineering Shenzhen UniversityShenzhen 518071China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science and Technology Beijing InstitutionBeijing 100083China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials Department of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Key Laboratory of Advanced Material Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Fabricating single-atom catalysts(SACs)with high catalytic activity as well as great stability is a big ***,we propose a precise synthesis strategy to stabilize single atomic ruthenium through regulating vanadium defects of nickel vanadium layered double hydroxides(NiV-LDH)ultrathin nanoribbons ***,the isolated atomically Ru doped NiV-LDH ultrathin nanoribbons(NiVRu-R)were successfully fabricated with a super-high Ru load of 12.8 wt.%.X-ray absorption spectrum(XAS)characterization further confirmed atomic dispersion of *** catalysts for electrocatalytic hydrogen evolution reaction(HER)in alkaline media,the NiVRu-R demonstrated superior catalytic properties to the commercial Pt/***,it maintained exceptional stability even after 5,000 cyclic voltammetry ***-situ XAS and density functional theory(DFT)calculations prove that the Ru atomic sites are stabilized on supports through forming the Ru-O-V structure,which also help promote the catalytic properties through reducing the energy barrier on atomic Ru catalytic sites.

关键词： hydrogen evolution reaction layered double hydroxide ruthenium atomic site ultrathin nanoribbons

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Micro reactors for measurement and analysis of thermochemical gas-solid reactions

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Resources Chemicals and materials 2022年第2期1卷 152-166页

作者： Zhennan Han Junrong Yue Chao Wang Xi Zeng Jian Yu Fang Wang Yu Guan Xuejing Liu Fu Ding Liangliang Fu Xin Jia Xingfei Song Dingrong Bai Guangwen Xu Key Laboratory on Resources Chemicals and Material of Ministry of Education Shenyang University of Chemical TechnologyShenyang 110142China The State Key Laboratory of Multi-phase Complex System Institute of Process EngineeringChinese Academy of ScienceBeijing 100190China School of Ecology and Environment Beijing Technology and Business UniversityBeijing 100048China

Micro reactors are the essential part of thermal analysis techniques for characterizing gas-solid thermochemical reactions. The dynamic and diversified needs for investigating various complex materials and gas-solid reactions have led to the development of a variety of different microreactors over the years. Solid particles in microreactors are normally heated by furnaces from outside, resistive elements from inside, direct contact with bed particles, or other non-resistively methods. Solid particles can be fixed or fluidized in reactors where gas-solid contacts vary from diffusion-dominated to nearly diffusion-free conditions. Based on these characteristics, in this article we presented a broad classification for microreactors used for thermal analysis of gas-solid reactions. For each of the most popularly used microreactors, their features and limitations are briefly reviewed. By addressing the diversity of the microreactors used in the field of thermal analysis, the review aims at providing general guidance for the selection and operation of the microreactor to satisfy one's practical specific needs.

关键词： Microreactors Thermal analysis Gas-solid reaction Kinetics Mechanism

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在TiO_(2)@C/Fe_(2)O_(3)纳米片阵列上电还原硝酸根制氨:揭示水热碳的影响

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Science China materials 2023年第11期66卷 4367-4376页

作者：吴璇马爱静刘丹李雪倩周颖康 Alex T.Kuvarega Bhekie B.Mamba 李虎桂建舟 State Key Laboratory of Separation Membranes and Membrane Processes School of Material Science and TechnologyTiangong UniversityTianjin 300387China Tianjin Key Laboratory of Green Chemical Technology and Process Engineering School of Chemical Engineering and TechnologyTiangong UniversityTianjin 300387China School of Chemistry Tiangong UniversityTianjin 300387China Institute for Nanotechnology and Water Sustainability College of ScienceEngineering and TechnologyUniversity of South AfricaFlorida 1709JohannesburgSouth Africa Ningxia Coal Industry Co. Ltd.CHN ENERGYYinchuan 750011China

电化学硝酸根还原制氨(NRA)可以同时实现硝酸盐废水处理和氨合成,是一种很有前途的环保节能策略.目前构建高效的电催化剂是人们关注的焦点.本文构建了TiO_(2)@C/Fe_(2)O_(3)纳米片阵列作为高效催化剂,采用多种表征手段系统研究了水热碳... 详细信息

电化学硝酸根还原制氨(NRA)可以同时实现硝酸盐废水处理和氨合成,是一种很有前途的环保节能策略.目前构建高效的电催化剂是人们关注的焦点.本文构建了TiO_(2)@C/Fe_(2)O_(3)纳米片阵列作为高效催化剂,采用多种表征手段系统研究了水热碳的引入对NRA性能的影响.我们发现水热碳既可作为良导体实现电荷的快速传递,又可作为还原剂引入更多的氧空位,实现了“一石二鸟”催化剂构建策略.与TiO_(2)/Fe_(2)O_(3)相比,TiO_(2)@C/Fe_(2)O_(3)具有更高的NRA性能,硝酸盐转化率为88.6%、氨选择性为83.4%、法拉第效率为85.3%、氨收率为0.2176 mmol h^(-1)cm^(-2).此外,在9次循环实验后,TiO_(2)@C/Fe_(2)O_(3)的高活性仍得以保持,证实了TiO_(2)@C/Fe_(2)O_(3)出色的稳定性.此外,我们利用电化学准原位电子自旋共振实验、电化学原位衰减全反射傅立叶变换红外测量和在线差分电化学质谱法推导了可能的NRA反应途径.这种引入水热碳中间层的策略可为开发新型NRA电催化剂开辟新的途径.

关键词： ammonia electrocatalysis nitrate TiO_(2) hydro-thermal carbon

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Designing a High Barrier, Tough and Self-Repairing Epoxy Composite Coatings with Ce-Mof Decorated 2d Α-Zrp Smart Nanofiller

SSRN

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SSRN 2023年

Combining the efficient barrier and self-repairing effects into 2D lamellar materials has been an emerging tactic for developing prominent anti-corrosion coatings. Herein, a cerium/2-methylimidazole metal-organic framework (Ce-MOF) was grown in-situ on the surface of ultrathin α-ZrP nanosheets with favorable dispersibility. The parallel arrangement of α-ZrP-based nanosheets among the epoxy polymer matrix were driven by shear force from blade-coating technology. In the current research on α-ZrP-based composite anti-corrosive coatings, the prepared coating has demonstrated the strongest physical barrier and optimal self-repairing ability, which may pave a feasible route to design smart protective coatings for various corrosion types such as filiform corrosion. © 2023, The Authors. All rights reserved.

关键词： Organometallics

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