Elastic properties of suspended black phosphorus nanosheets

Journal Article · Mon Jan 04 00:00:00 EST 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4939233· OSTI ID:22489255

Wang, Jia-Ying; Li, Yang; Zhen, Liang; Xu, Cheng-Yan ^[1]; Zhan, Zhao-Yao ^[2]; Li, Tie ^[3]

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1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001 (China)
2. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714 (China)
3. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 (China)

The mechanical properties of black phosphorus (BP) nanosheets suspended over circular holes were measured by an atomic force microscope nanoindentation method. The continuum mechanic model was introduced to calculate the elastic modulus and pretension of BP nanosheets with thicknesses ranging from 14.3 to 34 nm. Elastic modulus of BP nanosheets declines with thickness, and the maximum value is 276 ± 32.4 GPa. Besides, the effective strain of BP ranges from 8 to 17% with a breaking strength of 25 GPa. Our results show that BP nanosheets serve as a promising candidate for flexible electronic applications.

• OSTI ID: 22489255
• Journal Information: Applied Physics Letters, Vol. 108, Issue 1; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMIC FORCE MICROSCOPY
ELASTICITY
NANOSTRUCTURES
PHOSPHORUS
PRESSURE RANGE GIGA PA
STRAINS
THICKNESS