期刊
NANOSCALE RESEARCH LETTERS
卷 7, 期 -, 页码 1-4出版社
SPRINGEROPEN
DOI: 10.1186/1556-276X-7-233
关键词
Molybdenum disulfide nanosheets; Freely suspended; Mechanical properties; Atomically thin crystal; Mechanical exfoliation
资金
- MICINN (Spain) [MAT2008-01735, MAT2011-25046, CSD-2007-00010]
- Comunidad de Madrid [S2009/MAT-1726]
- European Union
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.
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