Jump to main content
Jump to site search

Issue 48, 2018
Previous Article Next Article

First-principle study of seven allotropes of arsenene and antimonene: thermodynamic, electronic and optical properties

Author affiliations

Abstract

Recently, Group-V monolayer elements, especially the novel allotropes of arsenene and antimonene, have attracted significant attention. Motivated by this, we employed first principles to systemically investigate the properties of seven new allotropes of arsenene and antimonene. Through analysis of cohesive energy and phonon mode dispersion, we proved their high dynamical stability. Thermodynamics were also considered with Debye temperature, heat capacity and Gibb's free energy, which revealed their basic thermal properties and thermo-dynamic stability at ambient temperature. By calculating the band structures, we found that γ-type, δ-type, ε-type and ζ-type for both arsenene and antimonene are semiconductors with direct band gaps, but η-type, θ-type and ι-type for both arsenene and antimonene are semiconductors with indirect bandgaps. Furthermore, by studying optical absorptions, we discovered that these arsenene and antimonene allotropes exhibit absorption from visible to ultraviolet region with clear linear dichroism in x and y directions; particularly, γ-type and ζ-type have stronger optical absorption than others.

Graphical abstract: First-principle study of seven allotropes of arsenene and antimonene: thermodynamic, electronic and optical properties

Back to tab navigation

Publication details

The article was received on 23 Aug 2018, accepted on 01 Nov 2018 and first published on 23 Nov 2018


Article type: Paper
DOI: 10.1039/C8CP05373A
Phys. Chem. Chem. Phys., 2018,20, 30257-30266

  •   Request permissions

    First-principle study of seven allotropes of arsenene and antimonene: thermodynamic, electronic and optical properties

    B. Zhang, H. Zhang, J. Lin and X. Cheng, Phys. Chem. Chem. Phys., 2018, 20, 30257
    DOI: 10.1039/C8CP05373A

Search articles by author

Spotlight

Advertisements