Distinctive in-Plane Cleavage Behaviors of Two-Dimensional Layered Materials

Guo, Yao1; Liu, Chunru1; Yin, Qifang2; Wei, Chengrong5; Lin, Shenghuang1; Hoffman, Tim B.6; Zhao, Yuda1; Edgar, J. H.6; Chen, Qing4; Lau, Shu Ping1; Dai, Junfeng5; Yao, Haimin2; Wong, H. -S. Philip1,3; Chai, Yang1

2016-09

10.1021/acsnano.6b05063

ACS Nano   影响因子和分区

1936-0851

1936-086X

Mechanical exfoliation from bulk layered crystal is widely used for preparing two-dimensional (2D) layered materials, which involves not only out-of-plane interlayer cleavage but also in-plane fracture. Through a statistical analysis on the exfoliated 2D flakes, we reveal the in-plane cleavage behaviors of six representative layered materials, including graphene, h-BN, 2H phase MoS2, IT phase PtS2, FePS3, and black phosphorus. In addition to the well-known interlayer cleavage, these 2D layered materials show a distinctive tendency to fracture along certain in-plane crystallography orientations. With theoretical modeling and analysis, these distinct in-plane cleavage behaviors can be understood as a result of the competition between the release of the elastic energy and the increase of the surface energy during the fracture process. More importantly, these in-plane cleavage behaviors provide a fast and noninvasive method using optical microscopy to identify the lattice direction of mechanical exfoliated 2D layered materials.

two-dimensional layered materials graphene transition metal dichalcogenides in plane cleavage anisotropy

SCI ; EI

英语

NI期刊

其他

[PolyU 152145/15E] ; Hong Kong Polytechnic University[G-SB53] ; Hong Kong Polytechnic University[1-ZVDH] ; Hong Kong Polytechnic University[1-ZVGH] ; National Natural Science Foundation of China[61321001] ; National Natural Science Foundation of China[11374022] ; [JCYJ20150630145302235]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000384399300097

AMER CHEMICAL SOC

20164002873479

Anisotropy ; Boron nitride ; Graphene ; Layered semiconductors ; Molybdenum compounds ; Noninvasive medical procedures ; Optical lattices ; Transition metals

Medicine and Pharmacology:461.6 ; Metallurgy and Metallography:531 ; Laser Beam Interactions:744.8 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

Web of Science

1.Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
2.Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
3.Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA
4.Peking Univ, Dept Elect, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China
5.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
6.Kansas State Univ, Dept Chem Engn, Durland Hall, Manhattan, KS 66506 USA

Guo, Yao,Liu, Chunru,Yin, Qifang,et al. Distinctive in-Plane Cleavage Behaviors of Two-Dimensional Layered Materials[J]. ACS Nano,2016,10(9):8980-8988.

Guo, Yao.,Liu, Chunru.,Yin, Qifang.,Wei, Chengrong.,Lin, Shenghuang.,...&Chai, Yang.(2016).Distinctive in-Plane Cleavage Behaviors of Two-Dimensional Layered Materials.ACS Nano,10(9),8980-8988.

Guo, Yao,et al."Distinctive in-Plane Cleavage Behaviors of Two-Dimensional Layered Materials".ACS Nano 10.9(2016):8980-8988.