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arXiv 2020年

作者： Wang, Hui Shan Chen, Lingxiu Elibol, Kenan He, Li Wang, Haomin Chen, Chen Jiang, Chengxin Li, Chen Wu, Tianru Cong, Chun Xiao Pennycook, Timothy J. Argentero, Giacomo Zhang, Daoli Watanabe, Kenji Taniguchi, Takashi Wei, Wenya Yuan, Qinghong Meyer, Jannik C. Xie, Xiaoming State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences 865 Changning Road Shanghai200050 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Faculty of Physics University of Vienna Boltzmanngasse 5 Vienna1090 Austria School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan430074 China School of Physical Science and Technology ShanghaiTech University Shanghai201210 China Shanghai200050 China Department of Lithospheric Research University of Vienna Althanstrasse 14 Vienna1090 Austria State Key Laboratory of ASIC & System School of Information Science and Technology Fudan University Shanghai200433 China National Institute for Materials Science 1-1 Namiki Tsukuba305-0044 Japan State Key Laboratory of Precision Spectroscopy School of Physics and Material Science East China Normal University Shanghai200062 China Centre for Theoretical and Computational Molecular Science Australian Institute for Bioengineering and Nanotechnology University of Queensland BrisbaneQLD4072 Australia School of Chemistry Trinity College Dublin CRANN - Advanced Microscopy Laboratory Unit 27/29 Trinity Enterprise CentrePearse St Dublin 2 Ireland University Antwerpen Groenenborgerlaan 171 Antwerpen2020 Belgium Institute for Applied Physics and Natural and Medical Sciences Institute University of Tübingen Tübingen Germany

The integrated in-plane growth of two dimensional materials (e.g. graphene and hexagonal boron nitride (h-BN)) with similar lattices, but distinct electrical properties, could provide a promising route to achieve integrated circuitry of atomic thickness. However, fabrication of edge-specific graphene nanoribbons (GNR) in the lattice of h-BN still remains an enormous challenge for present approaches. Here we developed a two-step growth method and successfully achieved sub-5 nm-wide zigzag and armchair GNRs embedded in h-BN, respectively. Further transport measurements reveal that the sub-7 nm-wide zigzag GNRs exhibit openings of the band gap inversely proportional to their width, while narrow armchair GNRs exhibit some fluctuation in the bandgap-width relationship. Transistors made of these GNRs with large bandgaps (>0.4 eV) exhibit excellent electronic performance even at room temperature (e.g. conductance on-off ratio more than 105 and carrier mobility more than 1,500 cm2 V−1 s−1). An obvious conductance peak is observed in the transfer curves of 8-10 nm-wide zigzag GNRs while it is absent in most of armchair GNRs of similar width. Magneto-transport experiments show that zigzag GNRs exhibit relatively small magneto-conductance (MC) while armchair GNRs have much higher MC than zigzag GNRs. This integrated lateral growth of edge-specific GNRs in h-BN brings semiconducting building blocks to atomically thin layer, and will provide a promising route to achieve intricate nanoscale electrical circuits on high-quality insulating h-BN substrates. Copyright © 2020, The Authors. All rights reserved.

关键词： Boron nitride

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Noble Metal Dichalcogenides: A Noble Metal Dichalcogenide for High‐Performance Field‐Effect Transistors and Broadband Photodetectors (Adv. Funct. Mater. 5/2020)

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advanced Functional Materials 2020年第5期30卷

作者： Zhen Wang Peng Wang Fang Wang Jiafu Ye Ting He Feng Wu Meng Peng Peisong Wu Yunfeng Chen Fang Zhong Runzhang Xie Zhuangzhuang Cui Liang Shen Qinghua Zhang Lin Gu Man Luo Yang Wang Huawei Chen Peng Zhou Anlian Pan Xiaohao Zhou Lili Zhang Weida Hu State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China University of Chinese Academy of Sciences Beijing 100049 China Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China State Key Laboratory of Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Jiangsu Key Laboratory of ASIC Design Nantong University Nantong Jiangsu 226019 China State Key Laboratory of ASIC and System Department of Microelectronics Fudan University Shanghai 200433 China Key Laboratory for Micro‐Nano Physics and Technology of Hunan Province College of Materials Science and Engineering Hunan University Changsha 410082 China

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Interfacial Engineering for Efficient Low-Temperature Flexible Perovskite Solar Cells

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Angewandte Chemie 2023年第41期135卷

作者： Weilun Cai Tinghuan Yang Chou Liu Yajie Wang Shiqiang Wang Yachao Du Nan Wu Wenliang Huang Shumei Wang Zhichao Wang Xin Chen Jiangshan Feng Guangtao Zhao Zicheng Ding Xu Pan Pengchen Zou Jianxi Yao Shengzhong (Frank) Liu Kui Zhao Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 China Contribution: Writing - original draft (lead) Key Laboratory of Novel Thin-Film Solar Cells Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 China Shaanxi State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources Beijing Key Laboratory of Energy Safety and Clean Utilization North China Electric Power University Beijing 102206 P. R. China Dalian National Laboratory for Clean Energy iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Photovoltaic technology with low weight, high specific power in cold environments, and compatibility with flexible fabrication is highly desired for near-space vehicles and polar region applications. Herein, we demonstrate efficient low-temperature flexible perovskite solar cells by improving the interfacial contact between electron-transport layer (ETL) and perovskite layer. We find that the adsorbed oxygen active sites and oxygen vacancies of flexible tin oxide (SnO 2 ) ETL layer can be effectively decreased by incorporating a trace amount of titanium tetrachloride (TiCl 4 ). The effective defects elimination at the interfacial increases the electron mobility of flexible SnO 2 layer, regulates band alignment at the perovskite/SnO 2 interface, induces larger perovskite crystal growth, and improves charge collection efficiency in a complete solar cell. Correspondingly, the improved interfacial contact transforms into high-performance solar cells under one-sun illumination (AM 1.5G) with efficiencies up to 23.7 % at 218 K, which might open up a new era of application of this emerging flexible photovoltaic technology to low-temperature environments such as near-space and polar regions.

关键词： Flexible Interfacial Engineering Low Temperature Perovskite Solar Cells

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Recent development of chemically complex metallic glasses:from accelerated compositional design,additive manufacturing to novel applications

材料展望（英文）

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材料展望（英文） 2022年第1期 9-31页

作者： J Y Zhang Z Q Zhou Z B Zhang M H Park Q Yu Z Li J Ma A D Wang H G Huang M Song B S Guo Q Wang Y Yang Department of Mechanical Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Shenzhen Key Laboratory of High Performance Nontraditional Manufacturing College of Mechatronics and Control EngineeringShenzhen UniversityShenzhenGuangdong 518060People's Republic of China School of Materials Science and Engineering Dongguan University of TechnologyDongguanGuangdong 523808People's Republic of China Institute of Materials China Academy of Engineering PhysicsJiangyouSichuan 621907People's Republic of China State Key Laboratory of Powder Metallurgy Central South UniversityChangshaHunan 410083People's Republic of China Department of Mechanical Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Institute of Advanced Wear & Corrosion Resistant and Functional Materials Jinan UniversityGuangzhouGuangdong 510632People's Republic of China Institute of Materials Laboratory for MicrostructuresShanghai UniversityShanghai 200444People's Republic of China Department of Mechanical Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Department of Materials Science and Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China Department of Advanced Design and System Engineering College of EngineeringCity University of Hong KongKowloon TongKowloonHong KongPeople's Republic of China

Metallic glasses(MGs)or amorphous alloys are an important engineering material that has a history of research of about 80-90 *** different fast cooling methods were developed for multi-component MGs between 1960s and 1980s,1990s witnessed a surge of research interest in the development of bulk metallic glasses(BGMs).Since then,one central theme of research in the metallic-glass community has been compositional design that aims to search for MGs with a better glass forming ability,a larger size and/or more interesting properties,which can hence meet the demands from more important *** this review article,we focus on the recent development of chemically complex MGs,such as high entropy MGs,with new tools that were not available or mature yet until recently,such as the state-of-the-art additive manufacturing technologies,high throughput materials design techniques and the methods for big data analyses(*** learning and artificial intelligence).We also discuss the recent use of MGs in a variety of novel and important applications,from personal healthcare,electric energy transfer to nuclear energy that plays a pivotal role in the battle against global warming.

关键词： metallic glasses amorphous alloys alloy design additive manufacturing machine learning high throughput materials design

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Infrared Photodetectors: Extrinsic Photoconduction Induced Short-Wavelength Infrared Photodetectors Based on Ge-Based Chalcogenides (Small 4/2021)

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Small 2021年第4期17卷

作者： Ting He Zhen Wang Ruyue Cao Qing Li Meng Peng Runzhang Xie Yan Huang Yang Wang Jiafu Ye Peisong Wu Fang Zhong Tengfei Xu Hailu Wang Zhuangzhuang Cui Qinghua Zhang Lin Gu Hui-Xiong Deng He Zhu Chongxin Shan Zhongming Wei Weida Hu State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences 500 Yutian Road Shanghai 200083 China School of Electronic Electrical and Communication Engineering University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China State Key Laboratory of ASIC and System School of Microelectronics Fudan University Shanghai 200433 China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Henan Key Laboratory of Diamond Optoelectronic Materials and Devices School of Physics and Engineering Zhengzhou University Zhengzhou 450001 China

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Cover Picture: Development of ReaxFFSFOHForce Field for SF6-H2O/O2Hybrid system Based on Synergetic Optimization by CMA-ES and MC Methodology (19/2021)

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ChemistrySelect 2021年第19期6卷

作者： Heng Liu Jingrui Wang Prof. Qingmin Li Prof. A. Manu Haddad State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China Advanced High Voltage Engineering Research Centre School of Engineering Cardiff University The Parade Cardiff CF24 3AA UK

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Zn Doped NiMn-Layered Double Hydroxide for High Performance Ni–Zn Battery

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Journal of The Electrochemical Society 2020年第16期167卷

作者： Shiyuan Wang Xinxuan Duan Tengfei Gao Zhaolei Wang Daojin Zhou Kai Sun Zhicheng Shang Yun Kuang Shubo Tian Xuejin Li Wen Liu Xiaoming Sun State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Centre for Soft Matter Science and Engineering College of Chemistry Beijing University of Chemical Technology Beijing 100029 People's Republic of China Beijing Key Laboratory of Power Generation System Functional Material Guodian New Energy Technology Research Institute Beijing 102209 People's Republic of China Songshan Lake Materials Laboratory Dong Guan Guang Dong 523808 People's Republic of China

Rechargeable Ni–Zn battery with aqueous alkaline electrolyte represents a low-cost, safe and environmentally benign battery technology but limited in energy density and inferior cycling stability. Herein, Zn doped NiMn-layered double hydroxides have been proposed to enhance the specific capacity and cycle stability of Ni–Zn battery, which featuring lower Ni valence state and flower-like micro-structure. As a result, NiMn-LDH with 5 at% Zinc doping in can achieve a high mass-specific capacity of 294 mAh g−1 at 1 A g−1 and enhanced stability, manifesting one of the best cathode materials for Ni–Zn batteries. Moreover, the corresponding Ni–Zn battery behaves a high capacity of 180 mAh g−1 at 1 A g−1 and 100% retention after 1000 cycles. This work demonstrates the superiority of materials design in both elemental composition and hierarchical structure to achieve high performance in energy storage, which can be also adapted to other battery systems.

关键词：

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The 5th International Conference on Biomedical Engineering and Biotechnology (ICBEB 2016) Abstracts

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BMC MEDICAL IMAGING 2016年第SUPPL 1期16卷 65-65页

作者： [Anonymous] Department of MRI Shandong Medical Imaging Research Institute Affiliated to Shandong University Jinan Shandong 250021 People’s Republic of China Department of Interventional Radiology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong 250021 People’s Republic of China College of Information Science and Technology Engr. Research Center of Digitized Textile & Fashion Tech. for Ministry of Education Donghua University Shanghai 201620 China Intelligent multimedia information processing Lab College of Software Northeastern University Shenyang Liaoning Province 110004 China Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China School of Computer Science and Technology Nanjing Normal University Nanjing China Department of Electrical Engineering The City College of New York CUNY New York USA Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing Nanjing China School of Electronic Science and Engineering Nanjing University Nanjing Jiangsu 210046 China College of Engineering Nanyang Technological University Singapore 639798 Singapore School of Electronic Information Shanghai Dianji University Shanghai China School of Natural Sciences and Mathematics Shepherd University Shepherdstown WV 25443 USA Davis College of Agriculture Natural Resources and Design West Virginia University Morgantown WV 26505 USA State Key Laboratory of Millimeter Waves Southeast University Nanjing 210096 China Center of Medical Physics and Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei China College of Agricultural and Life Sciences University of Florida Gainesville FL 32611 USA Courant Institute of Mathematical Sciences New York University New York NY 10012 USA Translational Imaging Division & MRI Unit Columbia University and New York State Psychiatric Institute New York NY 10032 USA Guangxi Key Laboratory of Manufacturing System & Adv

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Building a Beyond Concentrated Electrolyte for High-Voltage Anode-Free Rechargeable Sodium Batteries

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Angewandte Chemie 2022年第20期134卷

作者： Ziyang Lu Dr. Huijun Yang Prof. Quan-Hong Yang Prof. Ping He Prof. Haoshen Zhou Graduate School of System and Information Engineering University of Tsukuba 1-1-1 Tennoudai Tsukuba 305-8573 Japan Nanoyang Group State Key Laboratory of Chemical Engineering School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro-structures and Collaborative Innovation Center of Advanced Micro-structures Nanjing University Nanjing 210093 P. R. China

Low-cost and scalable sodium ion (Na-ion) batteries serve as an ideal alternative to the current lithium-ion batteries. To compensate for the shortage of energy density, the most accessible solution is developing a high-voltage anode-free configuration comprising a lightweight Al current collector on the anode and a high-voltage sodiumized cathode. However, it imposes stringent Na reversibility and high-voltage stability requirements on the electrolyte. A 3A zeolite molecular sieve film is rationally designed, and a highly aggregated solvation structure is constructed through the size effect. It suppresses the trace but continuous oxidative decomposition and extends the oxidative stability to 4.5 V without sacrificing the Na reversibility of the anode (99.91 %). Thus, we can make anode-free cells with high energy density of 369 and 372 W h kg −1 for 4.0 and 4.25 V class cells, respectively. Furthermore, this strategy enables a long lifespan (250 cycles) for 4.0 V-class anode-free cells.

关键词： Aggregative Electrolytes Anode-Free Gassing High-Voltage Ether Electrolytes Sodium Battery

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[email protected] x core-shell nanowires as a non-precious electrocatalyst for upgrading 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid

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Applied Catalysis B: Environmental 2020年 261卷

作者： Lifang Gao Zhenbang Liu Jinling Ma Lijie Zhong Zhongqian Song Jianan Xu Shiyu Gan Dongxue Han Li Niu Center for Advanced Analytical Science School of Chemistry and Chemical Engineering Guangzhou University Guangzhou 510006 PR China School of Civil Engineering Guangzhou University Guangzhou 510006 PR China State Key Laboratory of Electroanalytical Chemistry c/o Engineering Laboratory for Modern Analytical Techniques Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 Jilin PR China State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing City 400044 PR China

A key challenge for the conversion of 5-hydroxymethylfurfural (HMF) into value-added 2,5-furandicarboxylic acid (FDCA) is improving the sluggish kinetics of selective oxidation alcohol groups. Electrocatalysis has been proved to be a green and efficient strategy for heterogeneous synthetic chemistry. Herein, we report an electrocatalyst of [email protected] x core-shell nanowires for efficiently upgrading HMF into FDCA. The [email protected] x features conductive NiSe nanowires as a core and active NiO x as a shell, showing a smaller Tafel slope of 23 mV dec −1 accompanying with a near-quantitative yield of FDCA and 99% Faradaic efficiency (FE). X-ray photoelectron spectroscopy unveils the high valence of Ni species in the NiO x shell may be the active sites. Further integrated electrolyzer can produce FDCA and hydrogen simultaneously, showing a 100% FE even after six successive cycles, disclosing robust stability. All these results demonstrate [email protected] x core-shell nanowires as a promising robust non-precious electrocatalyst for highly efficient biomass transformation.

关键词： Electrocatalysis 5-hydroxymethylfurfural [email protected] x core-shell Robust stability 2,5-furandicarboxylic acid

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