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Interfacial Stress Transfer and Fracture in van der Waals Heterostructures

文献类型：期刊论文

作者Li, Zheling11; Liu, Mufeng9,10; Kumar, Pankaj8; Chang ZH(常正华)6,7; Qi, Guocheng5; He, Pei4; Wei YJ(魏宇杰)2,3; Young, RobertJ9,10; Novoselov, KostyaS1,8,10
刊名ADVANCED MATERIALS
出版日期2024-10-02
页码11
关键词failure mechanisms interfaces micromechanics vdW heterostructures
ISSN号0935-9648
DOI10.1002/adma.202411244
通讯作者Li, Zheling(zli@cqu.edu.cn) ; Wei, Yujie(yujie_wei@lnm.imech.ac.cn) ; Novoselov, Kostya S.(kostya@nus.edu.sg)
英文摘要Artificially stacking 2D materials (2DMs) into vdW heterostructures creates materials with properties not present in nature that offer great potential for various applications such as flexible electronics. Properties of such stacked structures are controlled largely by the interfacial interactions and the structural integrity of the 2DMs. In spite of their crucial roles, interfacial stress transfer and the failure mechanisms of the vdW heterostructures, particularly during deformation, have not been well addressed so far. In this work, the interfacial stress transfer and failure mechanisms of a MoS2/graphene vdW heterostructure are studied, through the strain distributions both laterally in individual 2DMs and vertically across different 2DMs revealed in-situ. The fracture of the MoS2 and the associated states of stress and strain are monitored experimentally. This enables various interfacial properties, such as the interfacial shear strength and interfacial fracture energy, to be estimated. Based only on the measured strength and interfacial properties of a single vdW heterostructure, a failure criterion is proposed to predict the failure mechanisms of similar vdW heterostructures with any lateral dimensions. This work provides an insight to the deformation micromechanics of vdW heterostructures that are of great value for their miniaturization and applications, especially in flexible electronics. The interfacial stress transfer and fracture of a MoS2/graphene vdW heterostructure are studied, through the lateral and vertical strain distributions in the vdW heterostructure revealed in-situ. This leads to the interfacial shear strength and interfacial fracture energy being estimated, and a failure criterion proposes to predict the failure mechanisms of similar vdW heterostructures with any lateral dimensions. image
分类号一类
WOS关键词STRUCTURAL SUPERLUBRICITY ; MONOLAYER MOS2 ; GRAPHENE ; FRICTION
资助项目National Natural Science Foundation of China[12302166] ; Hongshen Excellent Scholars Program from Chongqing University[02410011080001] ; Fundamental Research Funds for the Central Universities[2023CDJXY-007] ; China Postdoctoral Science Foundation[2023M743388] ; Royal Society (UK)[RSRP\R\190000] ; Ministry of Education, Singapore (Research Centre of Excellence award )[EDUNC-33-18-279-V12] ; National Research Foundation, Singapore under its AI Singapore Programme (AISG Award)[AISG3-RP-2022-028]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:001324395800001
资助机构National Natural Science Foundation of China ; Hongshen Excellent Scholars Program from Chongqing University ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation ; Royal Society (UK) ; Ministry of Education, Singapore (Research Centre of Excellence award ) ; National Research Foundation, Singapore under its AI Singapore Programme (AISG Award)
其他责任者Li, Zheling ; Wei, Yujie ; Novoselov, Kostya S.
源URL[http://dspace.imech.ac.cn/handle/311007/96922]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Univ Manchester, Dept Phys, Manchester M13 9PL, England
2.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
4.Cent South Univ, Sch Phys & Elect, Changsha 410083, Hunan, Peoples R China;
5.Beijing Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China;
6.Univ Sci & Technol China, Dept Modern Mech, Hefei 230026, Anhui, Peoples R China;
7.Eastern Inst Technol, Eastern Inst Adv Study, Ningbo 315200, Peoples R China;
8.Natl Univ Singapore, Inst Funct Intelligent Mat, Singapore 117575, Singapore;
9.Univ Manchester, Dept Mat, Manchester M13 9PL, England;
10.Univ Manchester, Natl Graphene Inst, Manchester M13 9PL, England;
推荐引用方式
GB/T 7714		 Li, Zheling,Liu, Mufeng,Kumar, Pankaj,et al. Interfacial Stress Transfer and Fracture in van der Waals Heterostructures[J]. ADVANCED MATERIALS,2024:11.
APA Li, Zheling.,Liu, Mufeng.,Kumar, Pankaj.,常正华.,Qi, Guocheng.,...&Novoselov, KostyaS.(2024).Interfacial Stress Transfer and Fracture in van der Waals Heterostructures.ADVANCED MATERIALS,11.
MLA Li, Zheling,et al."Interfacial Stress Transfer and Fracture in van der Waals Heterostructures".ADVANCED MATERIALS (2024):11.

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来源：力学研究所

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