Electronic structure of antimonene grown on Sb2Te3 (111) and Bi2Te3 substrates

Lei, Tao; Liu, C.; Zhao, Jiali; Li, Jinmei; Li, Yaping; Wang, Jiaou; Wu, Rui; Huang, Qian; Wang, Hui‐Qiong; Ibrahim, Kurash

doi:10.1063/1.4939281

Cited by 147 publications

(87 citation statements)

References 34 publications

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“…While both buckled and puckered honeycomb structures are found to be stable [19], buckled arsenene is energetically favored over puckered arsenene [18]. Experimentally the possibility of growing antimonene has been explored on Bi 2 Te 3 and Sb 2 Te 3 substrates [20]. A multilayer arsenene nanoribbon was synthesized on an InAs substrate using a plasma-assisted process [21].…”

Section: Introductionmentioning

confidence: 99%

Arsenene and Antimonene: Two-Dimensional Materials with High Thermoelectric Figures of Merit

2017

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We study the thermoelectric properties of As and Sb monolayers (arsenene and antimonene) using density-functional theory and the semiclassical Boltzmann transport approach. The materials show large band gaps combined with low lattice thermal conductivities. Specifically, the small phonon frequencies and group velocities of antimonene lead to an excellent thermoelectric response at room temperature. We show that n-type doping enhances the figure of merit.

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Section: Introductionmentioning

confidence: 99%

Arsenene and Antimonene: Two-Dimensional Materials with High Thermoelectric Figures of Merit

2017

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“…According to theoretical calculations, anitmonene presents high carrier mobility11, superior thermal conductivity14, strain induced band transition1015 and promising spintronic properties16. Despite the rapid progress of theoretical works about anitmonene mentioned above, reports of experimental studies on antimonene is still scarce171819. Early this year, Lei et al realized the synthesis of monolayer antimoene on Sb 2 Te 3 and Bi 2 Te 3 by molecular beam epitaxy17.…”

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confidence: 99%

Two-dimensional antimonene single crystals grown by van der Waals epitaxy

et al. 2016

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Unlike the unstable black phosphorous, another two-dimensional group-VA material, antimonene, was recently predicted to exhibit good stability and remarkable physical properties. However, the synthesis of high-quality monolayer or few-layer antimonenes, sparsely reported, has greatly hindered the development of this new field. Here, we report the van der Waals epitaxy growth of few-layer antimonene monocrystalline polygons, their atomical microstructure and stability in ambient condition. The high-quality, few-layer antimonene monocrystalline polygons can be synthesized on various substrates, including flexible ones, via van der Waals epitaxy growth. Raman spectroscopy and transmission electron microscopy reveal that the obtained antimonene polygons have buckled rhombohedral atomic structure, consistent with the theoretically predicted most stable β-phase allotrope. The very high stability of antimonenes was observed after aging in air for 30 days. First-principle and molecular dynamics simulation results confirmed that compared with phosphorene, antimonene is less likely to be oxidized and possesses higher thermodynamic stability in oxygen atmosphere at room temperature. Moreover, antimonene polygons show high electrical conductivity up to 104 S m−1 and good optical transparency in the visible light range, promising in transparent conductive electrode applications.

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“…Experimentally, β−antimonene(monolayer of antimony) has been successfully realized on the substrates of 3D topological insulator Bi 2 Te 3 and Sb 2 Te 3 respectively 18 , and the stability of monolayer antimonene allotropes including α−, β−, γ−, and δ−phase were examined by phonon dispersion calculations 17 , which shown that only the monolayer α− and β−antimonene (α/β−Sb) are stable as free-standing monolayers. However, to our knowledge, monolayer arsenene has not been experimentally realized up to now 14 .…”

Section: Introductionmentioning

confidence: 99%

First‐principle calculations of optical properties of monolayer arsenene and antimonene allotropes

Xu¹,

Peng²,

Zhang³

et al. 2017

Annalen der Physik

142

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Recently a stable monolayer of antimony in buckled honeycomb structure called antimonene was successfully grown on 3D topological insulator Bi 2 Te 3 and Sb 2 Te 3 , which displays semiconducting properties. By first principle calculations, we systematically investigate the phononic, electronic and optical properties of α− and β− allotropes of monolayer arsenene/antimonene. We investigate the dynamical stabilities of these four materials by considering the phonon dispersions. The obtained electronic structures reveal the direct band gap of monolayer α−As/Sb and indirect band gap of β−As/Sb. Significant absorption is observed in α−Sb, which can be used as a broad saturable absorber.

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Electronic structure of antimonene grown on Sb2Te3 (111) and Bi2Te3 substrates

Cited by 147 publications

References 34 publications

Arsenene and Antimonene: Two-Dimensional Materials with High Thermoelectric Figures of Merit

Arsenene and Antimonene: Two-Dimensional Materials with High Thermoelectric Figures of Merit

Two-dimensional antimonene single crystals grown by van der Waals epitaxy

First‐principle calculations of optical properties of monolayer arsenene and antimonene allotropes

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