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A bioinspired strategy for assembling graphene oxide sheets into high-performance graphene films

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Science China Chemistry 2018年第12期61卷 1475-1476页

作者： hui-ming cheng Tsinghua-Berkeley Shenzhen Institute Tsinghua University Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

Since 2004,graphene has attracted intense attention from the scientific and industrial communities due to its extraordinary properties,such as ultrahigh strength and remarkable electrical *** production of high-quality gra- phene materials can be achieved by chemical vapor deposition and chemical exfoliation,and their applications have been widely explored [1-3].

关键词： bioinspired strategy assembling graphene oxide sheets graphene films

High-quality graphene films produced by freezestretching alignment

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Science China Materials 2021年第5期64卷 1302-1303页

作者： hui-ming cheng Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Monolayer graphene has the highest tensile strength,Young’s modulus, and electrical conductivity of known materials, and it is expected to be used in aerospace,automobiles, flexible electronics, etc. [1]. However, the extraordinary properties of graphene are on the molecular level and have not been realized when assembled into macroscopic materials.

关键词： stretching modulus conductivity

Two-dimensional ambipolar van der Waals heterostructures enabling in-sensor computing for high-accuracy image recognition

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Science China Materials 2022年第9期65卷 2611-2612页

作者： hui-ming cheng Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

A traditional image recognition system is separately composed of a photodetector and a processing *** photodetector first detects a target light signal,then converts the detected light signal to an electrical signal,a... 详细信息

关键词： computing image system

Metre-size single-crystal graphene becomes a reality

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Science Bulletin 2017年第15期62卷 1039-1040页

作者： hui-ming cheng Tsinghua-Berkeley Shenzhen Institute Tsinghua University Shenzhen 518055 China Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Center of Excellence in Environmental Studies (CEES) King Abdulaziz University Jeddah 21589 Saudi Arabia

*** Liu of Peking University,a well-known graphene researcher and also one of the authors for the work[1]highlighted here,has always said,‘‘Fabrication determines the future'.I *** growth of large-area high-quality ... 详细信息

关键词：石墨大规模生产铜基材料单晶化学气相沉积 Ni合金北京大学器件应用

Arch-inspired super-elastic carbon materials

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National Science Review 2018年第1期5卷 3-4页

作者： hui-ming cheng Shenyang National Laboratory for MaterialsScience Institute of Metal ResearchChinese Academy of Sciences Tsinghua-Berkeley Shenzhen Institute (TBSI) Tsinghua University

Arch structures have been widely used in engineering construction due to their structural advantages,and continue to find new applications in various *** for arch bridges that transformsignificant weight to extrusion force along the arch axis,elastic arches are another important *** example,leaf springs act as a kind of arch-shaped spring-type suspension system in

关键词： Arch-inspired super-elastic carbon materials

Properties and photodetector applications of two-dimensional black arsenic phosphorus and black phosphorus

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Science China(Information Sciences) 2021年第4期64卷 120-133页

作者： Ruyue HAN Shun FENG Dong-ming SUN hui-ming cheng Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China School of Physical Science and Technology ShanghaiTech University Shenzhen Geim Graphene Center Shenzhen International Graduate School Tsinghua University

Two-dimensional(2D) black arsenic phosphorus(b-AsP), as an alloy of black phosphorus(bP) with arsenic, has attracted great attention because of its outstanding electronic and optical properties,including high carrier mobility, tunable bandgap and in-plane anisotropy. B-AsP has a smaller bandgap(0.15–0.3 eV) than the b-P bandgap(0.3–2.0 eV), and thus can be used for mid-infrared *** addition, both of them can form various van der Waals(vdW) heterojunctions with other 2D materials to realize novel functional optoelectronic devices. Here, we compare the basic characteristics of b-AsP and b-P, including crystal structure, optical properties, band structure, electrical properties and stability, and we summarize the update progress of b-AsP in photo detection, including representatives of phototransistor and photodiode devices. In the last part, the future research directions are discussed.

关键词： black arsenic phosphorus crystal structure optical property electrical property photodetector

Accurate structural descriptor enabled screening for nitrogen and oxygen vacancy codoped TiO_(2) with a large bandgap narrowing

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Journal of Materials Science & Technology 2022年第27期122卷 84-90页

作者： Kangyu Zhang Lichang Yin Gang Liu hui-ming cheng Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Department of Physics and Electronic Information Huaibei Normal UniversityHuaibei 235000China

Nitrogen(N)doping has been widely adopted to improve the light absorption of TiO_(2).However,the newly introduced N-2p states are largely localized thus barely overlap with O-2p states in the valence band of TiO_(2),resulting in a shoulder-like absorption *** realize an apparent overlap between N-2p and O-2p states,charge compensation between N^(3-)and O^(2-)via electron transfer from oxygen vacancies(VO)to N dopants is one possible *** verify this,in numerous doping configurations of N/VO-codoped anatase TiO_(2),we identified two types of VOposition independent N-dopant spatial orderings by efficient screening enabled with a newly designed structural *** with others,these two types of the N-dopant spatial orderings are highly beneficial for charge compensation to produce an apparent overlap between N-2p and O-2p states,therefore achieving a large bandgap ***,the two types of the N-dopant spatial orderings can also be generalized to N/VO-codoped rutile TiO_(2)for bandgap narrowing.

关键词： Structural descriptor TiO_(2) Bandgap narrowing Doping Machine learning Density functional theory

Interfacial Modification,Electrode/Solid‑Electrolyte Engineering,and Monolithic Construction of Solid‑State Batteries

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Electrochemical Energy Reviews 2023年第1期6卷 320-356页

作者： Qirong Liu Qiqi Chen Yongbing Tang hui‑ming cheng Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen 518055GuangdongChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Nano Science and Technology Institute University of Science and Technology of ChinaSuzhou 215123JiangsuChina Key Laboratory of Advanced Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002HenanChina

Solid-state lithium-metal batteries(SLMBs)have been regarded as one of the most promising next-generation devices because of their potential high safety,high energy density,and simple packing ***,the practical applications of SLMBs are restricted by a series of static and dynamic interfacial issues,including poor interfacial contact,(electro-)chemical incompatibility,dynamic Li dendrite penetration,*** recent years,considerable attempts have been made to obtain mechanistic insight into interfacial failures and to develop possible strategies towards excellent interfacial properties for *** static and dynamic failure mechanisms at interfaces between solid electrolytes(SEs)and electrodes are comprehensively summarized,and design strategies involving interfacial modification,electrode/SE engineering,and the monolithic construction of SLMBs are discussed in ***,possible research methodologies such as theoretical calcu-lations,advanced characterization techniques,and versatile design strategies are provided to tackle these interfacial problems.

关键词： Solid-state batteries Interfacial issues Interfacial modification Electrode/solid-electrolyte engineering Monolithic construction

Recent Advances for the Synthesis and Applications of 2-Dimensional Ternary Layered Materials

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Research 2023年第3期6卷 521-545页

作者： Jing Peng Zheng-jie Chen Baofu Ding hui-ming cheng Faculty of Materials Science and Energy Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Layered materials with unique structures and symmetries have attracted tremendous interest for constructing 2-dimensional(2D)*** weak interlayer interaction renders them to be readily isolated into various ultrathin nanosheets with exotic properties and diverse *** order to enrich the library of 2D materials,extensive progress has been made in the field of ternary layered ***,many brand-new materials are derived,which greatly extend the members of 2D *** this review,we emphasize the recent progress made in synthesis and exploration of ternary layered *** first classify them in terms of stoichiometric ratio and summarize their difference in interlayer interaction,which is of great importance to produce corresponding 2D *** compositional and structural characteristics of resultant 2D ternary materials are then discussed so as to realize desired structures and *** a new family of 2D materials,we overview the layer-dependent properties and related applications in the fields of electronics,optoelectronics,and energy storage and *** review finally provides a perspective for this rapidly developing field.

关键词： materials properties field