Atomically thin group-V elemental films: theoretical investigations of antimonene allotropes
arXiv:1503.02543 · doi:10.1021/acsami.5b02441
Abstract
Group-V elemental monolayers including phosphorene are emerging as promising 2D materials with semiconducting electronic properties. Here, we present the results of first principles calculations on stability, mechanical and electronic properties of 2D antimony (Sb), antimonene. Our calculations show that free-standing α and \b{eta} allotropes of antimonene are stable and semiconducting. The α-Sb has a puckered structure with two atomic sub-layers and \b{eta}-Sb has a buckled hexagonal lattice. The calculated Raman spectra and STM images have distinct features thus facilitating characterization of both allotropes. The \b{eta}-Sb has nearly isotropic mechanical properties while α-Sb shows strongly anisotropic characteristics. An indirect-direct band gap transition is expected with moderate tensile strains applied to the monolayers, which opens up the possibility of their applications in optoelectronics.
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Cited by in corpus (17)
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- Environmental Stability of Bismuthene: Oxidation Mechanism and Structural Stability of 2D Pnictogens
- Tuning the electronic structure of α-antimonene monolayer through interface engineering
- A First-Principles Study on the Adsorption of Small Molecules on Arsenene: Comparison of Oxidation Kinetics in Arsenene, Antimonene, Phosphorene and InSe
- In-Plane Magnetization Induced Quantum Anomalous Hall Effect in Atomic Crystals of Group-V Elements
- Electronic properties of single-layer antimony: Tight-binding model, spin-orbit coupling and the strength of effective Coulomb interactions
- Strain Effects on the Mechanical Properties of Group-V Monolayers with Buckled Honeycomb Structures
- Kinetics-Limited Two-Step Growth of van der Waals Puckered Honeycomb Sb Monolayer
- Strain-induced Weyl and Dirac states and direct-indirect gap transitions in group-V materials
- Ultrafast diffusive cross-sheet motion of lithium through antimonene with a 2+1 dimensional kinetics
- Few-layer antimonene electrical properties
- Protective layer enhanced the stability and superconductivity of tailored antimonene bilayer
- Tunnelling Characteristics of Stone-Wales Defects in Monolayers of Sn and Group-V Elements
- Strain effects in twisted spiral antimonene
- Nanomechanics of Antimonene Allotropes
- Optoelectronic characteristics and application of black phosphorus and its analogs