Effects of applied strain and electric field on small-molecule sensing by stanene monolayers

Wang, Tianxing; Zhao, Rumeng; Zhao, Mingyu; Zhao, Xu; An, Yipeng; Dai, Xianqi; Xia, Congxin

doi:10.1007/s10853-016-0745-3

Cited by 38 publications

(25 citation statements)

References 40 publications

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“…Different adsorption behaviors of common gas molecules on germanene not only provide a feasible way to exploit chemically modified germanene, but also render germanene as a gas selective and sensitive gas sensing or capturing 2D material. Similar conclusions have been also obtained for stanene Wang et al, 2017) due to strong chemical reactive surface, where H 2 O, NH 3 , and CO molecules are physisorbed. NO and NO 2 molecules are strongly chemisorbed on stanene with quite large charge transfer, sizable adsorption energy, and strong covalent (Sn-O) bonds.…”

Section: Silicene Germanene and Stanenesupporting

confidence: 85%

Gas sensing and capturing based on two‐dimensional layered materials: Overview from theoretical perspective

Tang

Kou

2018

WIREs Comput Mol Sci

103

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Toxic gas detection and capture are two important topics, which are highly related with human health and environments. Recently, theoretical simulations based on first‐principles calculations have suggested two‐dimensional (2D) materials to be as ideal candidates for gas sensing and capturing due to the large surface–volume ratio and reactive surface. Starting from graphene, which was firstly proposed for 2D gas sensing, the family currently has been extended to transition metal dichalcogenides, phosphorene, silicene, germanene, MXene, and so on. In this review, we give a comprehensive overview of recent progress in computational investigations of 2D gas sensing/capture materials. We then offer perspectives on possible directions for further fundamental exploration of gas sensor and caption based on 2D materials, which are expected to offer tremendous new opportunities for future research and development. This article is categorized under: Structure and Mechanism > Computational Materials Science

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Section: Silicene Germanene and Stanenesupporting

confidence: 85%

Gas sensing and capturing based on two‐dimensional layered materials: Overview from theoretical perspective

Tang

Kou

2018

WIREs Comput Mol Sci

103

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“…Graphene is a two-dimensional material consisting of carbon atoms in a hexagonal lattice [1,2,7,8,10,16,18,22,23,26,29,32,33,34,35,36,90,101,102,103,106]. Other two-dimensional materials with hexagonal crystalline lattice are germanene [37,38,39,40,41,42,43], silicene [1,2,22,29,45,46,47], stanene [2,48,49,50,51,104], aluminene [64], bismuthene, antimonene [29,65,66,67,68], hexagonal boron nitride ( h -BN) [83,84,85], gallium sulfide (GaS), gallium selenide (GaSe), hafnium disulfide (HfS 2 ) [82], hafnium diselenide (HfSe 2 ) [82], indium selenide (In 2 Se 3 ), molybdenum disulfide (MoS 2 ) [32,75,76,77,78,79,101], molybdenum ditelluride (MoTe 2 ) [82], molybdenum diselenide (MoSe 2 ) [80,81], molybdenum sulfide selenide (MoSSe), molyb...…”

Section: Electronic Band Structure For Two-dimensional Materialsmentioning

confidence: 99%

“…The study of the dispersion energy of the first Brillouin zone allows to tune the band gap of two-dimensional material in the search for semiconducting materials with the maximum performance in the gas sensing. Through the mathematical models of dispersion energy, it is possible to study the effect of the thickness and the inclusion of dopants on the band gap of the two-dimensional material [33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83].…”

Section: Why Study Electrical Properties Of the 2d Materials For Gmentioning

confidence: 99%

“…In the high-tech manufacture of electronic devices, the use of two-dimensional materials such as graphene, transition metal dichalcogenides, black phosphorus, hexagonal boron nitride ( h -BN), silicene, germanene, stanene, arsenene, aluminene, antimonene, bismuthine, molybdenum disulfide (MoS 2 ), molybdenum diselenide (MoSe 2 ), MXenes, etc. [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15] These materials have attracted the attention of gas sensor designers due to their large surface-to-volume ratios and extremely sensitive surfaces [16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,…”

Section: Introductionmentioning

confidence: 99%

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Electrical Properties of Two-Dimensional Materials Used in Gas Sensors

Vargas-Bernal

2019

Sensors

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In the search for gas sensing materials, two-dimensional materials offer the possibility of designing sensors capable of tuning the electronic band structure by controlling their thickness, quantity of dopants, alloying between different materials, vertical stacking, and the presence of gases. Through materials engineering it is feasible to study the electrical properties of two-dimensional materials which are directly related to their crystalline structure, first Brillouin zone, and dispersion energy, the latter estimated through the tight-binding model. A review of the electrical properties directly related to the crystalline structure of these materials is made in this article for the two-dimensional materials used in the design of gas sensors. It was found that most 2D sensing materials have a hexagonal crystalline structure, although some materials have monoclinic, orthorhombic and triclinic structures. Through the simulation of the mathematical models of the dispersion energy, two-dimensional and three-dimensional electronic band structures were predicted for graphene, hexagonal boron nitride (h-BN) and silicene, which must be known before designing a gas sensor.

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“…Several types of qualified supported substrates—including graphene, h‐BN, Ge(111), MoS 2 , WS 2 , ZnO, Al 2 O 3 , PbI 2 , Sb(111), InSb(001), and anion‐terminated (111) surfaces of, for example, SrTe, PbTe, BaSe, and BaTe reveal an evolution of the protected topological large‐gap QSH insulator property with bandgaps as high as 300 meV at room temperature. Theoretical predictions of the effects of varying the external strain, applied electric field, buckling height, and defect formation in the stanene nanosheets have revealed the possibility of enhancing the SOC effect with a large nontrivial bandgap. The electronic properties of stanene nanoribbons are also affected by the SOC effect of the topological behavior upon functionalization and different edge states .…”

Section: Features Of Stanene Nanosheetsmentioning

confidence: 99%

A Perspective on Recent Advances in 2D Stanene Nanosheets

Sahoo

Wei

2019

Adv Materials Inter

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for example, incompatibility with the semiconductor industry, [13] toxicity, [14] and susceptibility to oxidative environments. [7] Accordingly, researchers are on the lookout for other existing or synthetic 2D analogues.There have been numerous reports describing a wide variety of layered ultrathin 2D nanomaterials beyond graphene, with fascinating and technologydriven properties. These single-layer atomic crystals are classified in terms of their constituent elemental bonding states and structures. Most of them are transition metals bonded with chalcogenide groups (e.g., MoS 2 , MoSe 2 , WS 2 , TiS 2 ), [13,15] metal carbides and nitrides (MXenes), [16] metalorganic frameworks (MOFs), [17] covalent organic frameworks (COFs), [18] hexagonal boron nitrides, [19] and monoelemental 2D analogues (e.g., silicene, germanene, and phosphorene). [20] The emergence of new fascinating physical and chemical properties is encouraging the discovery of new classes of 2D nanomaterials, prepared either from 3D van der Waals bulk phases (through top-down techniques) or through self-assembly of elemental constituents from wet-chemical or vapor phase (bottom-up approaches). The former types of synthetic strategies are mostly exfoliation processes from 3D layered structures, including physical exfoliation (by forced delamination of layers), [21] liquid phase exfoliation (by the chemistry of matching with solute-solvent interface energy), [22] and ion intercalation and exfoliation (by electrochemical reactions). [23,24] These processes for preparing 2D nanosheets are widely followed because they are sufficiently simple and robust for scalable production; nevertheless, they can be challenging to use when synthesizing nanosheets with uniform thicknesses and lateral dimensions. The scalability of these processes for manufacturing nanosheets has, however, been exploited widely, for example, in energy storage devices, [25] sensors, [26] electronics and photonic devices, [27] as well as in biomedicine. [27] The bottom-up approaches involve growth and self-assembly from the atomic scale, mostly involving chemical vapor deposition, [28] pulsed laser deposition, [28] and epitaxial growth. [29] Although these processes for fabricating 2D nanosheets provide good control over the homogeneity of the structures, they occur with complex growth mechanisms and are not scalable. Interestingly, quantum confinement effects are prominent in fabricated atomic-layer structures, and suggest a new dimension for future nanoelectronics and many other advanced applications. [30][31][32][33] Advancements in 2D nanomaterials have been impacting a wide range of technology-driven applications. Here, the authors highlight stanene, a material that comprises a monolayer of elemental tin atoms, as a new addition to the monoelemental 2D family. Recent successes in the experimental realization of stanene in supported heterostructures and in free-standing form have expanded interest in exploring and unlocking its potential applications, as predicted from advanced theoreti...

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Effects of applied strain and electric field on small-molecule sensing by stanene monolayers

Cited by 38 publications

References 40 publications

Gas sensing and capturing based on two‐dimensional layered materials: Overview from theoretical perspective

Gas sensing and capturing based on two‐dimensional layered materials: Overview from theoretical perspective

Electrical Properties of Two-Dimensional Materials Used in Gas Sensors

A Perspective on Recent Advances in 2D Stanene Nanosheets

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