Highly anisotropic electronic and mechanical properties of monolayer and bilayer As2S3
نویسندگان
چکیده
Anisotropic materials, with orientation-dependent properties, have attracted more and attention due to their compelling tunable flexible performance in electronic optomechanical devices. So far, two-dimensional (2D) black phosphorus shows the largest known anisotropic behavior, which is highly desired for synaptic neuromorphic devices, multifunctional directional memories, even polarization-sensitive photodetector, whereas it unstable at ambient conditions. Recently, 2D few-layered As2S3 superior chemical stability was successfully exfoliated experiments. However, mechanical properties of monolayer bilayer still lacking. Here, we report large systems through first-principles calculations general angle-dependent Hooke's law. Monolayer exhibit factors Young's modulus 3.15 3.32, respectively, are larger than phosphorous experimentally confirmed an factor 2. This study provides effective route nanoelectronics, nanomechanics, offers implications promoting related experimental investigations.
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ژورنال
عنوان ژورنال: Applied Surface Science
سال: 2021
ISSN: ['1873-5584', '0169-4332']
DOI: https://doi.org/10.1016/j.apsusc.2020.148665