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New structure transistors for advanced technology node CMOS ICs

National Science review 2024年第3期11卷 24-41页

作者： Qingzhu Zhang Yongkui Zhang Yanna Luo Huaxiang Yin Integrated Circuit Advanced Process R&D Center Institute of Microelectronics of Chinese Academy of Sciences(IMECAS) State key Lab of Fabrication Technologies for Integrated Circuits Institute of Microelectronics of Chinese Academy of Sciences School of Integrated Circuits University of Chinese Academy of Sciences

Over recent decades, advancements in complementary metal-oxide-semiconductor integrated circuits(ICs)have mainly relied on structural innovations in transistors. From planar transistors to the fin field-effect transistor(FinFET) and gate-all-around FET(GAAFET), more gate electrodes have been added to three-dimensional(3d) channels with enhanced control and carrier conductance to provide higher electrostatic integrity and higher operating currents within the same device footprint. Beyond the 1-nm node, Moore's law scaling is no longer expected to be applicable to geometrical shrinkage. Vertical transistor stacking, e.g. in complementary FETs(CFET), 3d stack(3dS) FETs and vertical-channel transistors(VFET), for enhanced density and variable circuit or system design represents a revolutionary scaling approach for sustained IC development. Herein, innovative works on specific structures, key process breakthroughs, shrinking cell sizes and design methodologies for transistor structure research and development are reviewed. Perspectives on future innovations in advanced transistors with new channel materials and operating theories are also discussed.

关键词： transistor CMOS GAAFET CFET 3dS FET

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Effects of the VGS sweep range on the short channel effect in negative capacitance FinFETs

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Science China(Information Sciences) 2024年第6期67卷 463-464页

作者： Fan ZHANG Zhaohao ZHANG Jiaxin YAO Qingzhu ZHANG Gaobo XU Zhenhua WU Huan LIU Genquan HAN Yan LIU Huaxiang YIN Integrated Circuit Advanced Process R&D Center State Key Lab of Fabrication Technologies for Integrated CircuitsInstitute of Microelectronics of Chinese Academy of Sciences School of Microelectronics Xidian University School of Integrated Circuits University of Chinese Academy of Sciences

As the CMOS technology scaling is reaching fundamental limits,there is a substantial demand for energy-efficient devices with lower operating *** capacitance field-effect transistors （NCFETs） exhibit the capability to amplify the gate voltage and become promising candidates for future advanced process *** （FE） HfO2-based materials,

关键词： channel sweep range capacitance effects finfets negative short

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Oxoammonium salt mediated conversion of cyclohexylamine toward cyclohexanone with water as the oxygen source

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Green Chemical Engineering 2025年第3期6卷 365-371页

作者： Yuting ruan Yongtao Wang Jia Yao Haoran Li Department of Chemistry Zhejiang UniversityHangzhou310058China Center of Chemistry for Frontier Technologies ZJU-NHU United R&D CenterHangzhou310058China State Key Laboratory of Chemical Engineering and College of Chemical and Biological Engineering Zhejiang UniversityHangzhou310058China

Cyclohexylamine is a key byproduct during the production of cyclohexanone oxime,which is an important bulk chemical in material *** we report a highly efficient approach to oxidize cyclohexylamine toward cyclohexanone with oxoammonium salt as the oxidant and water as the oxygen source,which has noninvolvement of metal *** obtained cyclohexanone is an important raw material for both cyclohexanone oxime and adipic acid *** basis of control experiments,mass spectrometry,and product analysis,the essential role of water as oxygen source and the reaction mechanism were ***,the recycling of the oxoammonium salt succeeded to convert another proportion of the *** findings offer new insights and methods for the oxidative conversion of cyclohexylamine.

关键词： Cyclohexylamine oxidation Oxoammonium salts Metal-free oxidation Nylon

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Elucidating solvent effects on the stability of phenoxyl radicals in monohydric alcohols via electron paramagnetic resonance

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Green Chemical Engineering 2024年第4期5卷 483-488页

作者： Xinyu Wang Wenjing Sun Yongtao Wang Haoran Li Department of Chemistry Zhejiang UniversityHangzhou310058China Center of Chemistry for Frontier Technologies ZJU-NHU United R&D CenterZhejiang UniversityHangzhou310058China State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310058China

research on solvent effects is an important and long-standing topic,but there still is some room,especially for the special solvent effect of *** this work,we investigated the stability of phenoxyl radical in monohydric alcohol solvents through in-situ electron paramagnetic resonance *** decay behavior of phenoxyl radical showed a reasonable relationship with the mesoscopic structure of alcohols,characterized by smalland wide-angle X-ray ***,the distinct solvent effects of fluoroalcohols were emphasized,and the significant influence of van der Waals distance in the solvents was ***,the stability of phenoxyl radical in alcohols was quantified and correlated with the solvent *** believe that the established method for stability study on radicals will encourage solvent effect studies on various organic reactions,and the proposed solvent effects in fluoroalcohols may inspire the development of green solvents in both industrial conversions and organic synthesis.

关键词： Solvent effect Fluoroalcohol Phenoxyl radical Stability Electron paramagnetic resonance

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The combination of SLC7A11 inhibitor and oridonin synergistically inhibits cervical cancer cell growth by decreasing the NAdPH/NAdP^(+) ratio

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Genes & diseases 2025年第1期12卷 137-140页

作者： Yajie Liu Pengxing He Xubin Ma Yingqi Tian Yu Zhang Yang Wang Yingjie Jia Hongmin Liu Ying Liu Yichao Xu Key Laboratory of Advanced Drug Preparation Technologies Ministry of EducationCo-innovation Center of Henan Province for New Drug R&D and Preclinical SafetySchool of Pharmaceutical SciencesZhengzhou UniversityZhengzhouHenan 450001China The First Affiliated Hospital of Zhengzhou University ZhengzhouHenan 450052China

SLC7A11,as the core component of system xc,protects cancer cells from oxidative-stress-induced cell death like ferroptosis by mediating cystine *** studies revealed that SLC7A11 is widely overexpressed in various types of cancer,and inhibition of SLC7A11 could inhibit tumor growth.1 Consistently,SLC7A11 was overexpressed in cervical cancer,and the expression of SLC7A11 was associated with the severity of cervical cancer(Fig.1A;Fig.S1A),making SLC7A11 a promising anti-tumor ***,SLC7A11 inhibitor imidazole ketone erastin(IKE)alone exerts weak antiproliferative effects in cervical cancer cells(Fig.S1d).Oridonin is isolated from the traditional Chinese herbal rabdosia rubescens and exhibits mild anti-cancer activity against multiple types of tumor cells,including cervical cancer ***,the low bioavailability and dose-dependent toxicity of oridonin hinder its clinical application.

关键词： cervical herbal synergistic

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recyclable High-performance Carbon Fiber reinforced Epoxy Composites Based on dithioacetal Covalent Adaptive Network

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Chinese Journal of Polymer Science 2024年第10期42卷 1514-1524,I0011页

作者： Gui-Lian Shi Ting-Cheng Li dao-Hong Zhang Jun-Heng Zhang Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science Hubei R&D Center of Hyperbranched Polymers Synthesis and ApplicationsSouth-Central Minzu UniversityWuhan430074China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430200China Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan430062Chin

recycling of carbon fiber reinforced composites is important for sustainable development and the circular *** the use of dynamic chemistry,developing high-strength recyclable CFrPs remains a major challenge due to the mutual exclusivity between the dynamic and mechanical properties of ***,we developed a high-strength recyclable epoxy resin(HrEP)based on dynamic dithioacetal covalent adaptive network using diglycidyl ether bisphenol A(dGEBA),pentaerythritol tetra(3-mercapto-propionate)(PETMP),and vanillin epoxy resin(VEPr).At high temperatures,the exchange reaction of thermally activated dithioacetals accelerated the rearrangement of the network,giving it significant reprocessing ***,HrEP exhibited excellent solvent resistance due to the increased cross-linking *** this high-strength recyclable epoxy resin as the matrix and carbon fiber modified with hyperbranched ionic liquids(HBP-AMIM+PF6-)as the reinforcing agent,high performance CFrPs were successfully *** tensile strength,interfacial shear strength(IFSS)and interlaminar shear strength(ILSS)of the optimized formulation(HrEP20/CF-HBPPF6)were 1016.1,70.8 and 76.0 MPa,*** addition,the CFrPs demonstrated excellent solvent and acid/*** CFrPs could completely degrade within 24 h in dMSO at 140℃,and the recycled CF still maintained the same tensile strength and ILSS as the original after multiple degradation cycles.

关键词： Epoxy resin Hyperbranched ionic liquid recycling Carbon fiber Composites

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Synergistic functional additives on cycling performance of silicon-carbon composite anode in pouch cells

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JOUrNAL OF MATErIOMICS 2025年第4期11卷

作者： Cheng, Jun Huang, Zhenyu Lu, Anqi He, Aiqi Shao, Yuxuan Fan, Yuxin Huang, Yunhui Tongji Univ Inst New Energy Vehicles Sch Mat Sci & Engn Shanghai Key Lab R&D & Applicat Met Funct Mat Shanghai 201804 Peoples R China Chulalongkorn Univ Int Grad Program Nanosci & Technol Bangkok 10330 Thailand Chulalongkorn Univ Met & Mat Sci Res Inst Bangkok 10330 Thailand

With increasing application demands of electronics and electric vehicles, the energy density of lithiumion batteries (LIBs) is expected to be higher and higher. The silicon-based anode materials have triggered global research interest due to low operating voltage and high specific capacity. However, for the Sibased anode, the large volume change during cycling causes cracking and pulverization of Si particles, leading to the sluggish kinetics and poor cycle life. In this work, fluoroethylene carbonate (FEC) and lithium bis(fluorosulfonyl)imide (LiFSI) are used as synergistic functional additives to enhance the performance of silicon-carbon (Si-C) composite anode in pouch cell. The properties of solid electrolyte interphase (SEI) formed on the surface of Si-C composite anode have been systematically investigated. The images of different electrolytes infiltration and gas production after formation are analyzed with ultrasonic transmission scanning technique. dFT calculations are used to illustrate the mechanism. All date collection is at pouch cell level, which is more persuasive. (c) 2024 Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. This is an open access article under the CC BY-NC-Nd license (http://***/licenses/by-nc-nd/4.0/).

关键词： Lithium-ion batteries Electrolyte additives Fluoroethylene carbonate Lithium bisfluorosulfonimide Silicon-based anode

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Cu-catalyzed regioselective diborylation of 1,3-enynes for the efficient synthesis of 1,4-diborylated allenes

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Chinese Chemical Letters 2024年第5期35卷 141-144页

作者： Wujun Jian Mong-Feng Chiou Yajun Li Hongli Bao Song Yang National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang 550025China Strait Institute of Flexible Electronics(SIFE Future Technologies)Fujian Normal UniversityFuzhou 350117China Key Laboratory of Coal to Ethylene Glycol and Its Related Technology State Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterUniversity of Chinese Academy of SciencesFuzhou 350002China

Borylation of 1,3-enynes with bis(boronate)compounds often ends up with the formation of hydroborylated products,leaving the diborylation of 1,3-enynes for the formation of 1,4-diborylated allenes to be ***,a copper-catalyzed chemo-,regio-,and stereo-selective diborylation of 1,3-enynes for the efficient construction of 1,4-diborylated allenes under base-free conditions was reported.A wide range of 1,3-enynes bearing various functional groups can participant in the reaction and afforded the corresponding 1,4-diborylated allenes in good to excellent yields,which was enabled by the protocol of Bpin to BF3K *** borylcopper species was supposed to selectively attack the C-C triple bond of the 1,3-enynes.

关键词： Copper catalysis regioselective 1,3-Enynes Borylation Allenes

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Laminaria Japonica Polysaccharide Improved the Productivities and Systemic Health of ducks by Mediating the Gut Microbiota and Metabolome

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JOUrNAL OF AGrICULTUrAL ANd FOOd CHEMISTrY 2023年第19期71卷 7382-7395页

作者： Liu, Anxin Kim, Eunyoung Cui, Jiamei Li, Jing Lee, Yunkyoung Zhang, Guiguo Shandong Agr Univ China Korea Joint R&D Ctr Plant Derived Funct Poly Dept Nutr Key Lab Efficient Utilizat Nongrain Feed Resources Tai An 271018 Peoples R China Jeju Natl Univ Dept Food Sci & Nutr Jeju 63243 South Korea Jeju Natl Univ Korea China Joint R&D Ctr Plant Derived Funct Poly Jeju 63243 South Korea Jeju Natl Univ Interdisciplinary Grad Program Adv Convergence Tec Jeju 63243 South Korea

This study investigated the beneficial effects of a Laminaria japonica polysaccharide (LJPS) on the systemic health of ducks by modulating the gut microbiome and metabolome. Our findings demonstrated that the LJPS supplementation enhanced the overall growth performance and physiological immune and antioxidant index of ducks. In addition, the LJPS-fed group significantly increased abundances of intestinal Bacteroides and Prevotellaceae with decreased alpha-diversity than that in the control group. Among the total of 1840 intestinal metabolites, 186 metabolites were identified to be differentially regulated by LJPS feeding (upregulated 143 metabolites and downregulated 43 metabolites), which is closely associated with some of the growth-related metabolic pathways. Lastly, the correlation analysis recapitulates that the beneficial effects of LJPS underlie the alterations in intestinal microbiota and metabolites. Taken together, LJPS supplementation improved the physiological parameters and richness of some beneficial microbes and upregulated certain metabolic pathways, which facilitated better productivities and systemic health of ducks.

关键词： Laminaria japonica polysaccharide health parameters intestinal microbiome metabolome ducks

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Triple-Cladding Ytterbium doped Fiber for 12 kW Single Module

Triple-Cladding Ytterbium Doped Fiber for 12 kW Single Modul...

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2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Meng, Yue Xu, Zuying Shi, Xudong Li, Yu Liu, Tianying Li, Can Yan, Xiao Zheng, Wei Wang, Heng Yu, Jiangang Zhao, Zhiyong Tang, Ming Yangtze Optical Fibre and Cable Joint Stock Limited Company Optical Fiber R&d Center Everfoton Technologies Corp Oration Limited State Key Laboratory of Optic Al Fiber and Cable Manufactu Re Technology Wuhan30070 4 China Everfoton Technologies Corp Oration Limited Optical Fiber R&d Center Wuhan China & National Engineering Laboratory for Next Generation Internet Access System Wuhan China

ISBN: (纸本)9798350312614

High power continuous-wave ytterbium-doped fiber lasers have unique advantages such as high electro-optical efficiency, excellent beam quality and good thermal management, and are widely used in industrial materials processing and scientific research. However, multi-kW (\geqslant 10kW) high-power fiber lasers has encountered numerous technology challenges in double-cladding fibers. In this work, we designed and fabricated a triple-cladding ytterbium doped fiber with large core diameter by using Modified Chemical Vapor deposition (MCVd) combined with all-gas-phase doping method. An excellent laser performance could be demonstrated for such a fiber with an output power of more than 10 kW and a slope efficiency of 82%, no Transverse Mode instability (TMI) is observed. Long-term laser stability at 12 kW-level was carried out in a master oscillator power amplifier (MOPA) laser system for 500 hours with power degradation less than 1%, meanwhile a stimulated raman scattering (SrS) suppression ratio that is larger than 45dB was obtained. © 2023 IEEE.

关键词： fiber laser high-power long-term reliability photo-darkening triple cladding

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