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Out-of-Plane Deformations Determined Mechanics of Vanadium Disulfide (VS2) Sheets
Wang, Guorui1,2; Zhang, Zhepeng3; Wang, Yanlei4; Gao, Enlai5; Jia, Xiangzheng5; Dai, Zhaohe1; Weng, Chuanxin1; Liu, Luqi1; Zhang, Yanfeng3; Zhang, Zhong1
2021-01-20
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume13Issue:2Pages:3040-3050
AbstractThe rapid development of two-dimensional (2D) materials has significantly broadened the scope of 2D science in both fundamental scientific interests and emerging technological applications, wherein the mechanical properties play an indispensably key role. Nevertheless, particularly challenging is the ultrathin nature of 2D materials that makes their manipulations and characterizations considerably difficult. Herein, thanks to the excellent flexibility of vanadium disulfide (VS2) sheets, their susceptibility to out-of-plane deformation is exploited to realize the controllable loading and enable the accurate measurements of mechanical properties. In particular, the Young's modulus is estimated to be 44.4 +/- 3.5 GPa, approaching the lower limit for 2D transition metal dichalcogenides (TMDs). We further report the first measurement of thickness-dependent bending rigidity of VS2, which deviates from the prediction of the classical continuum mechanics theory. Additionally, a deeper understanding of the mechanics within two dimensions also facilitates the modulation of strain-coupled physics at the nanoscale. Our Raman measurements showed the Gruneisen parameters for VS2 were determined for the first time to be gamma(E2g1) approximate to 0.83 and gamma(A1g) approximate to 0.32.
Keywordtwo-dimensional (2D) materials vanadium disulfide nanosheet out-of-plane deformation nanomechanics strain engineering
DOI10.1021/acsami.0c19835
Language英语
WOS KeywordTOTAL-ENERGY CALCULATIONS ; ELASTIC PROPERTIES ; THIN-FILMS ; GRAPHENE ; MONOLAYER ; MOS2 ; NANOSHEETS ; ADHESION ; NANOMATERIALS ; INTRAPLANAR
Funding ProjectNational Natural Science Foundation of China[11832010] ; National Natural Science Foundation of China[11890682] ; National Natural Science Foundation of China[22072031] ; National Natural Science Foundation of China[21721002] ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDB30020100] ; National Key Research and Development Program[2018YFA0208403] ; National Key Basic Research Program of China[2013CB934203]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Key Research and Development Program ; National Key Basic Research Program of China
WOS IDWOS:000612551400085
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43422
Corresponding AuthorLiu, Luqi; Zhang, Zhong
Affiliation1.CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China
2.Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada
3.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
5.Wuhan Univ, Sch Civil Engn, Dept Engn Mech, Wuhan 430072, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Wang, Guorui,Zhang, Zhepeng,Wang, Yanlei,et al. Out-of-Plane Deformations Determined Mechanics of Vanadium Disulfide (VS2) Sheets[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(2):3040-3050.
APA Wang, Guorui.,Zhang, Zhepeng.,Wang, Yanlei.,Gao, Enlai.,Jia, Xiangzheng.,...&Zhang, Zhong.(2021).Out-of-Plane Deformations Determined Mechanics of Vanadium Disulfide (VS2) Sheets.ACS APPLIED MATERIALS & INTERFACES,13(2),3040-3050.
MLA Wang, Guorui,et al."Out-of-Plane Deformations Determined Mechanics of Vanadium Disulfide (VS2) Sheets".ACS APPLIED MATERIALS & INTERFACES 13.2(2021):3040-3050.
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