Bigraphene nanomeshes: Structure, properties, and formation

Чернозатонский, Л. А.; Demin, V. A.; Artyukh, A. A.

doi:10.1134/s0021364014050051

Cited by 17 publications

(14 citation statements)

References 17 publications

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“…In both cases the band gap tends to zero, because asymptotic limits of Dh and Rh correspond to geometries of metallic bilayered graphene and metallic armchair carbon nanotube (CNT), respectively. Note that in the earlier reports [41,42] bilayered graphene superlattices with rectangular unit cell were studied. All considered structures display semimetal properties besides noncovalent bonded bilayered nanomesh.…”

Section: Calculation Methodsmentioning

confidence: 99%

“…All considered structures display semimetal properties besides noncovalent bonded bilayered nanomesh. [42] It should be noted, however, that not only the structures with high values of Rh can have low values of the band gap. Decreasing of the size of the holes until point defects (vacancies) leads to an appearance of metallic properties without any dependence on the distance between the vacancies.…”

Section: Calculation Methodsmentioning

confidence: 99%

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Bilayered semiconductor graphene nanostructures with periodically arranged hexagonal holes

et al. 2014

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This template is to be used for preparing manuscripts for submission to Nano Research. Use of this template will save time in the review and production processes and will expedite publication. However, use of the template is not a requirement of submission. Do not modify the template in any way (delete spaces, modify font size/line height, etc.). If you need more detailed information about the preparation and submission of a manuscript to Nano Research, please see the latest version of the Instructions for Authors at http://www.thenanoresearch.com/. TABLE OF CONTENTS (TOC)Authors are required to submit a graphic entry for the Table of Contents (TOC) in conjunction with the manuscript title. This graphic should capture the readers' attention and give readers a visual impression of the essence of the paper. Labels, formulae, or numbers within the graphic must be legible at publication size. Tables or spectra are not acceptable. Color graphics are highly encouraged. The resolution of the figure should be at least 600 dpi. The size should be at least 50 mm × 80 mm with a rectangular shape (ideally, the ratio of height to width should be less than 1 and larger than 5/8). One to two sentences should be written below the figure to summarize the paper. To create the TOC, please insert your image in the template box below. Fonts, size, and spaces should not be changed. In this work the novel hexagonal nanomeshes based on bilayered graphene were studied. Electronic and transport properties and the dependences of the band gap on two main parameters characterizing the geometry were studied in detail.Provide the authors' webside if possible. ABSTRACTWe present a theoretical study of new nanostructures based on the bilayered graphene with periodically arranged hexagonal holes (bilayered graphene antidots). Our ab initio calculations show that fabrication of hexagonal holes in bigraphene leads to connection of the neighboring edges of the two graphene layers with formation of a hollow carbon nanostructure sheet which displays wide range of electronic properties (from semiconductor to metallic), depending on the size of the holes and the distance between them. The results were additionally supported by wave packet dynamical transport calculations based on the numerical solution of the time-dependent Schrödinger equation.

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Section: Calculation Methodsmentioning

confidence: 99%

Section: Calculation Methodsmentioning

confidence: 99%

Bilayered semiconductor graphene nanostructures with periodically arranged hexagonal holes

et al. 2014

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“…the lack of energy gap, which makes its use in electronics extremely limited. The band structure varies depending on the number of layers, their mutual orientation1 and the presence of periodically arranged holes234.…”

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Bilayered graphene/h-BN with folded holes as new nanoelectronic materials: modeling of structures and electronic properties

Чернозатонский

Demin

Bellucci

2016

Sci Rep

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The latest achievements in 2-dimensional (2D) material research have shown the perspective use of sandwich structures in nanodevices. We demonstrate the following generation of bilayer materials for electronics and optoelectronics. The atomic structures, the stability and electronic properties of Moiré graphene (G)/h-BN bilayers with folded nanoholes have been investigated theoretically by ab-initio DFT method. These perforated bilayers with folded hole edges may present electronic properties different from the properties of both graphene and monolayer nanomesh structures. The closing of the edges is realized by C-B(N) bonds that form after folding the borders of the holes. Stable ≪round≫ and ≪triangle≫ holes organization are studied and compared with similar hole forms in single layer graphene. The electronic band structures of the considered G/BN nanomeshes reveal semiconducting or metallic characteristics depending on the sizes and edge terminations of the created holes. This investigation of the new types of G/BN nanostructures with folded edges might provide a directional guide for the future of this emerging area.

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“…The idea of band gap opening in graphene monolayer by formation of periodically arranged holes (antidots) got a second wind in the bigraphene case. Indeed, while the open edges of holes in a graphene single layer are reactive and require passivation, the edges of bigraphene holes are naturally self-passivated. − The energy gain due to the hole active edges connection from both layers sufficiently overcomes the loss in graphene bending energy due to edges curving. Moreover, ab initio calculations predicted that connection of the edges even does not require overcoming any barrier , and, therefore, the hollow sp 2 -hybridized graphene structure forms spontaneously.…”

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confidence: 99%

“…The electronic properties of the perforated bilayered graphene , distinguish them from single-layered graphene or graphene ribbons, the edges of which induce stress and lead to carriers scattering . Therefore, control of the atomic structure of the hole edges in bigraphene is highly desirable and can yield a new class of carbon nanostructures with attractive electronic properties.…”

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confidence: 99%

On the Edge of Bilayered Graphene: Unexpected Atomic Geometry and Specific Electronic Properties

Erohin

Чернозатонский

Сорокин

2020

J. Phys. Chem. Lett.

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Bigraphene nanomeshes: Structure, properties, and formation

Cited by 17 publications

References 17 publications

Bilayered semiconductor graphene nanostructures with periodically arranged hexagonal holes

Bilayered semiconductor graphene nanostructures with periodically arranged hexagonal holes

Bilayered graphene/h-BN with folded holes as new nanoelectronic materials: modeling of structures and electronic properties

On the Edge of Bilayered Graphene: Unexpected Atomic Geometry and Specific Electronic Properties

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