Environmental Effects in Mechanical Properties of Few-layer Black Phosphorus
arXiv:1608.06855 · doi:10.1088/2053-1583/3/3/031007
Abstract
We report on the mechanical properties of few-layer black phosphorus (BP) nanosheets, in high vacuum and as a function of time of exposure to atmospheric conditions [1]. BP flakes with thicknesses ranging from 4 to 30 nm suspended over circular holes are characterized by nanoindentations using an atomic force microscope tip. From measurements in high vacuum an elastic modulus of 46+/-10 GPa and breaking strength of 2.4+/-1 GPa are estimated. Both magnitudes are independent of the thickness of the flakes. Our results show that the exposure to air has substantial influence in the mechanical response of flakes thinner than 6 nm but small effects on thicker flakes.
Main article: number of pages 10, number of figures 4 Supplementary information: number of pages 9, number of figures 8, 2D Materials 2016
References in corpus (14)
- Two Dimensional Atomic Crystals
- Two-Dimensional Material Nanophotonics
- Fast and broadband photoresponse of few-layer black phosphorus field-effect transistors
- Effective Passivation of Exfoliated Black Phosphorus Transistors against Ambient Degradation
- The Renaissance of Black Phosphorus
- Superior mechanical flexibility of phosphorene and few-layer black phosphorus
- Elastic properties of freely suspended MoS2 nanosheets
- Photocurrent generation with two-dimensional van der Waals semiconductors
- Environmental instability of few-layer black phosphorus
- Enhanced Thermoelectric Efficiency via Orthogonal Electrical and Thermal Conductances in Phosphorene
- Tuning of the electronic and optical properties of single layer black phosphorus by strain
- Mechanics of freely-suspended ultrathin layered materials
- Environmental Effects in Mechanical Properties of Few-layer Black Phosphorus
- In situ characterisation of nanoscale electromechanical properties of quasi-two-dimensional MoS2 and MoO3