We investigate the currently debated issue of the existence of the dirac cone in silicene on an ag111 surface, using firstprinciples calculations based on density functional theory to obtain the band structure. Fundamentals of silicene silicon nanomaterials sourcebook. Transposing from sinws, it could be possible to build ultrasensitive. Silicene passivation by fewlayer graphene acs applied. Although this is a fairly new avenue, the already obtained outcome from these. Silicene catalyzed reduction of nitrobenzene to aniline. Go to the webpage where you want to download the file. Free download wps office 20162019 for pcandroidios.
Each unique file type specifier may take one of the following forms. Sizable band gap in epitaxial bilayer graphene induced by. Quantized conductance and fieldeffect topological quantum. Sinanosheets sinss have recently attracted considerable attention due to their potential as nextgeneration materials for electronic, optoelectronic, spintronic, and catalytic applications. Balls and sticks model of a stonewales defect in single layer silicene, lower is the side view of the same structure. Free standing layers of silicene like sheets shobha shukla, raghvendra pratap chaudhary and sumit saxena nanostructures engineering and modeling laboratory, department of metallurgical engineering and materials science, indian institute of technology bombay, mumbai, india 400076 corresponding author sumit. For silicene, the researchers created the sheet on a thin layer of silver, with a 5nm cap of alumina on top. Application of silicene, germanene and stanene for na or. Bilayer silicene has richer physical properties than bilayer graphene due to its buckled structure together with its trigonal symmetric structure. We also discuss the bands merging in the brillouin zone symmetry points and the conditions for the latter to become dirac points. Download pdf copy by will soutter jan 11 20 in 2012, research groups in japan and europe reported the production of a single atomic layer of silicon, dubbed silicene. Contrary to graphene, silicene is not flat, but has a periodically buckled topology.
Seven years ago, silicene was little more than a theorists dream. Jul 28, 2012 based on firstprinciples calculations, we study the structural, electronic, and magnetic properties of twodimensional silicene saturated with hydrogen and bromine atoms. A theoretical perspective zhong hongxia,1, 3 quhe ruge. A unique file type specifier is a string that describes a type of file that may be selected by the user in an element of type file.
Download pdf introduction controllable nonmagnetic spintronic devices are highly desirable in the development of spintronics applications, which is an area of intense current interest 1, 2, 3. Silicene is a topological insulator, which is characterized by a full insulating gap in the bulk and helical gapless edges. Silicene, silicene derivatives, and their device applications. As is well known, graphene, a flat single layer of. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Roomtemperature electrical characterization of silicene transistor devices. Adobe acrobat reader dc software is the free global standard for reliably viewing, printing, and commenting on pdf documents. Ab initio quantum transport in abstacked bilayer penta.
Buoyed by a frenzy of interest in graphene the famous material composed of a honeycomb of carbon. A valid caseinsensitive filename extension, starting with a period. In contrast to graphene, silicene has a relatively large intrinsic spin. On the one hand, its the best file format for sharing documents because users cant just make changes to the file. You may do so in any reasonable manner, but not in. And now, its connected to the adobe document cloud. Silicene on other twodimensional materials semantic scholar. We report calculations of the electronic structure of silicene and the stability of its weakly buckled honeycomb lattice in an external electric field oriented. Valleypolarized quantum anomaloushall effects in silicene. Silicene and related materials are currently among the most actively studied. Raman investigation of airstable silicene nanosheets on an inert.
If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. Pdf chemical modification of silicene researchgate. Balls and sticks model of a single layer buckled hexagonal lattice of silicene, the buckling is marked by buckling height the inplane unit cell composed of two silicon atoms is highlighted. Auger electron spectroscopy, lowenergy electron diffraction, scanning tunneling microscopyspectroscopy, in situ raman spectroscopy, and energydispersive inplane xray diffraction were applied to achieve. Download fulltext pdf application of silicene, germanene and stanene for na or li ion storage. Pdf silicene fieldeffect transistors operating at room. Silicene a monolayer of silicon atoms is a quantum spinhall insulator, which undergoes a topological phase transition into other insulators by applying. Files available from the acs website may be downloaded for personal use only. The stabilization of silicene at ambient conditions is essential for its characterization, future processing, and device integration. Scanning tunneling microscopy and raman evidence of.
The input files for the configuration of co2 placed on top of lower silicene and upper silicene, the output data for these calculations, the input files for co2 on top of the al and n atom of aln, the output data for co2 on top of n in perfect aln and the data for co2 on top of al and n in imperfect aln is available in the supplementary files. Silicon is one of the most frequently used chemical elements of the periodic table in nanotechnology goodilin et al. Silicene, germanene and stanene are atomic thick materials with hexagonal honeycomb structures similar to that of graphene. Effective hamiltonians for phosphorene and silicene. The analysis is performed both in the absence and in the presence of the spinorbit coupling. Silicene has been predicted to be an extraordinary anode material for lithiumion. Silicene is a twodimensional allotrope of silicon, with a hexagonal honeycomb structure similar to that of graphene. We finally envision future work on the chemical modification of silicene for the sake of further advancing the development of silicene. Pdf is not rendering correctly, you can download the pdf file here.
The lattice is actually made of two sublattices with a tiny separation. Feb 19, 2016 silicene is a newly discovered material that is one atomic layer think. Furthermore, its semiconducting properties make it ideal for use in electronic components. Fabrication and properties of silicene and silicene. Among them, silicene, 2d silicon monolayer, is one of the most attractive materials, due to easy integration in current silicon based electronic devices kara et al.
Here, we reveal the epitaxial growth of silicene stripes selfaligned in a massively parallel array on the anisotropic silver. The discovery of graphene and its remarkable and exotic properties. Users may download and print one copy of any publication from the. Based on firstprinciples calculations, we study the interaction between li and silicene and explore the microscopic mechanism of li storage on.
The methodology is used on freestanding abstacked bilayer penta silicene. To save a file or image on your computer or device, download it. Download fulltext pdf download fulltext pdf silicene oxides. Based on firstprinciples calculations, we study the structural, electronic, and magnetic properties of twodimensional silicene saturated with hydrogen and bromine atoms. It is a twodimensional 2d nanomaterial that is classified as a nanosheet, which has large lateral dimensions up to micrometres, but thicknesses of only. Effective hamiltonians for phosphorene and silicene dtu orbit. Download pdf introduction controllable nonmagnetic spintronic devices are highly desirable in the development of spintronics applications, which is an area of intense current interest 1. If you do not see its contents the file may be temporarily unavailable at the journal website or you do not have a pdf plugin installed and enabled in your browser.
Effects of disorder on the transport and thermoelectric. Open, download, or view adobe acrobat files as pdf or html files in your browser. Dft study of electronic and optical properties of silicene. Graphene is a twodimensional material with unique electronic properties qualitatively different from those of standard semiconductors such as silicon. Symmetry classification of energy bands in graphene and. Add a oneline explanation of what this file represents. Alternatively, you can download the file locally and open with any standalone pdf reader. This site is like a library, use search box in the widget to get ebook that you want. It is a twodimensional 2d nanomaterial that is classified as a nanosheet, which has large lateral dimensions up to micrometres, but thicknesses of only nanometres or less. The energetically most favorable adsorption configuration of nitrobenzene on pristine silicene is shown in fig. Even though monolayer sinss were first synthesized over 150 years ago via topotactic deintercalation of casi2, there is a lack of consensus within the literature regarding the structure and optical.
The raman shift of lowbuckled silicene on an inert substrate has not been reported so far and it is. The preparation of silicene in experiments is extremely difficult. We report an investigation of the interactions of li with silicene. We demonstrate a new quantum state of mattervalleypolarized quantum anomalous hall effect in monolayer silicene. Application of silicene, germanene and stanene for na or li ion storage. The electronic properties of silicene nanoribbons and silicene sheets were found to resemble those of graphene. Additionally, freestanding silicene is not stable in a flat configuration. Download fulltext pdf effective hamiltonians for phosphorene and silicene article pdf available in new journal of physics 172. This file is licensed under the creative commons attributionshare alike 3.
Download winzip free, open zip files with winzip, 1. Here, we demonstrate in situ encapsulation of silicene on ag111 by exfoliated fewlayer graphene flg flakes, allowing subsequent raman analysis under ambient conditions. Finally, lithium is the main element supplying the charge carriers for the electrochemical current sources based on graphene, silicene, or combined graphene silicene anodes. Formation, structures and electronic properties article pdf available in scientific reports 3. Efficiently, silicene stripe arrays could be prepared in large scale on thin silver 110 epitaxial films grown, e. Morse parameters for the interaction of metals with graphene. Optical and magnetic properties of freestanding silicene. The presented study is aimed to define the morse parameters sets describing the interaction of three practically important metals ni, ag, li with the graphene and silicene. Pdf files can be both incredibly useful and incredibly frustrating at the same time. Adsorption behavior of co2 molecule on aln and silicene.
To construct multilayer silicene, we introduce three fundamental stacking orders to depict the relative position between two adjacent layers, which are aa, aa. Quantum spinvalley hall effect in abstacked bilayer silicene. The electronic and magnetic properties of functionalized. Highly oriented pyrolytic graphite hopg is an inert substrate with a structural honeycomb lattice, well suited for the growth of a twodimensional 2d silicene layer. Ab initio prediction of a silicene and graphene heterostructure as an. We investigate the currently debated issue of the existence of the dirac cone in silicene on an ag111 surface, using firstprinciples calculations based on density functional theory to.
Opening a band gap in bilayer graphene blg is of significance for potential applications in graphenebased electronic and photonic devices. Click download or read online button to get iii v semiconductor materials and devices book now. Media in category silicene the following 15 files are in this category, out of 15 total. We first grow highquality bernalstacked blg on ru0001 and then intercalate silicene to the interface between the blg and ru, which is. Pdf application of silicene, germanene and stanene for. Nonetheless, there is a lack of experimental studies largely du 2d nanomaterials. Thermoelectric pentasilicene with a high roomtemperature. Twodimensional silicene, a silicon analogue of graphene, has been readily obtained to make fieldeffect transistors since 2015 tao et al. Adsorption of li on singlelayer silicene for anodes of li. Structure, properties and applications request pdf. Contrary to graphene, silicene, germanene and stanene are not flat, but have a periodically buckled topology. There is, however, a lack of any chemical bonding between silicene and the phenyl group of the nitrobenzene.
A theoretical investigation article pdf available in electrochimica acta 22. Silicene has been predicted to be an extraordinary anode material for lithiumion batteries with a large capacity and low lithium migration energy barriers, but the freestanding form of silicene is unstable, virtually requiring a substrate support. We present the results of the symmetry classification of the electron energy bands in graphene and silicene using group theory algebra and the tightbinding approximation. Silicene structure, properties and applications michelle spencer. This file contains additional information such as exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. This layer was peeled off its mica base, flipped over, and laid on an oxidized silicon.
Pdf progress in the materials science of silicene researchgate. Silicene, the ultimate scaling of a silicon atomic sheet in a buckled honeycomb lattice, represents a monoelemental class of twodimensional 2d materials similar to graphene but with unique potential for a host of exotic electronic properties. The following 15 files are in this category, out of 15 total. In the presence of extrinsic rashba spinorbit coupling and exchange field, monolayer silicene can host a quantum anomaloushall state with chern number c2. Pdf effective hamiltonians for phosphorene and silicene. The file will be saved in your default download location. Electrically tunable band gap in silicene internet archive. Silicene is a monolayer of silicon atoms forming a twodimensional honeycomb lattice, which shares almost every remarkable property with graphene. Introduction to the physics of silicene and other 2d materials. Effective hamiltonians for phosphorene and silicene view the table of contents for this issue, or go to the journal homepage for more home search collections journals about contact us my iopscience. Iii v semiconductor materials and devices download ebook.
Silicene is a newly discovered material that is one atomic layer think. It is found that the fully saturated silicene exhibits nonmagnetic semiconducting behavior, while halfsaturation on only one side with hydrogen or bromine results in the localized and unpaired electrons of the unsaturated. China 2collaborative innovation center of quantum matter, beijing 100871. Here, we report the generation of a sizable band gap in blg by intercalating silicene between blg and ru substrate.
Silicene, a hexagonal mesh of silicon atoms, has attracted significant interest from both academia and electronics industry because it exhibits. Raman spectroscopy measurements proved that flg capping serves as an effective. Application of silicene, germanene and stanene for na or li. Silicene is a monolayer of silicon atoms forming a honeycomb lattice.
In this work, we propose to use graphene as a substrate and. The study of optical properties in silicene nanosheet network doped by. For more information on how to open a zip file you can also visit our partner site. Quasitopological insulator and trigonal warping in gated. Tantalizing is the possibility that silicene could help prolong the life of moores law. Silicene is a twodimensional semiconductor, forming a honeycomb lattice of silicon atoms.
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