Mechanical properties of freely suspended semiconducting graphene-like layers based on MoS2

被引：150

作者：

Castellanos-Gomez, Andres ^{[1
,2
]}

Poot, Menno ^{[1
,4
]}

Steele, Gary A. ^{[1
]}

van der Zant, Herre S. J. ^{[1
]}

Agrait, Nicolas ^{[2
,3
]}

Rubio-Bollinger, Gabino ^{[2
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

[2] Univ Autonoma Madrid, Dept Fis Mat Condensada C3, E-28049 Madrid, Spain

[3] Inst Madrileno Estudios Avanzados Nanociencia IMD, E-28049 Madrid, Spain

[4] Yale Univ, Dept Engn Sci, New Haven, CT 06520 USA

来源：

NANOSCALE RESEARCH LETTERS | 2012年 / 7卷

关键词：

Molybdenum disulfide nanosheets; Freely suspended; Mechanical properties; Atomically thin crystal; Mechanical exfoliation; ELASTIC PROPERTIES; GRAPHITE;

D O I：

10.1186/1556-276X-7-233

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We fabricate freely suspended nanosheets of molybdenum disulphide (MoS2) which are characterized by quantitative optical microscopy and high-resolution friction force microscopy. We study the elastic deformation of freely suspended nanosheets of MoS2 using an atomic force microscope. The Young's modulus and the initial pre-tension of the nanosheets are determined by performing a nanoscopic version of a bending test experiment. MoS2 sheets show high elasticity and an extremely high Young's modulus (0.30 TPa, 50% larger than steel). These results make them a potential alternative to graphene in applications requiring flexible semiconductor materials. PACS, 73.61.Le, other inorganic semiconductors, 68.65.Ac, multilayers, 62.20.de, elastic moduli, 81.40.Jj, elasticity and anelasticity, stress-strain relations.

引用

页码：1 / 4

页数：4

共 28 条

[1] Stretching and Breaking of Ultrathin MoS2 [J].