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   Articles with "shaped graphene" as a keyword



First principles study of magnetism induced by topological frustration of bowtie-shaped graphene nanoflake

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recommendations! Published in 2018 at "Carbon"

DOI: 10.1016/j.carbon.2017.11.005

Abstract: Fine-tuning magnetic states by understanding topological frustration inducing magnetic mechanism should allow greater flexibility for the design of graphene-based spintronics. Based on first-principles calculations, it is predicted that bowtie-shaped graphene nanoflake (GNF) is of spin-polarized… read more here.

Keywords: topological frustration; shaped graphene; bowtie; first principles ... See more keywords

Chemical-hydrothermal synthesis of oval-shaped graphene/ZnO quantum hybrids and their photocatalytic performances

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recommendations! Published in 2017 at "Catalysis Communications"

DOI: 10.1016/j.catcom.2017.08.004

Abstract: Abstract Oval-shaped graphene/ZnO quantum hybrid (GZQH) is synthesized via chemical-hydrothermal method and tested for the photoenhanced selective reduction of nitroarenes. A facile molecular fusion process is employed to produce graphene quantum dots (GQDs) from pyrene,… read more here.

Keywords: quantum; shaped graphene; oval shaped; zno ... See more keywords
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Y-shaped graphene-based antenna with switchable circular polarization

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recommendations! Published in 2020 at "Optik"

DOI: 10.1016/j.ijleo.2019.163321

Abstract: Abstract In this paper, an antenna with the ability to provide the right- and left-hand circular polarization in the THz band is presented. The central frequency of the antenna is set at 0.45 THz according to… read more here.

Keywords: graphene based; chemical potential; based antenna; shaped graphene ... See more keywords

A high-performance broadband terahertz absorber based on single layer cross-shaped graphene

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recommendations! Published in 2021 at "Optik"

DOI: 10.1016/j.ijleo.2021.167249

Abstract: Abstract In this paper, we propose an easy-to-fabricate, broadband terahertz (THz) absorber constructed by a single layer of cross-shaped graphene and a metallic mirror separated by a thin silicon layer. Over 90% absorption can be… read more here.

Keywords: broadband terahertz; layer; single layer; shaped graphene ... See more keywords

Magnetic and electronic properties of diamond-shaped graphene-boron nitride nanoribbons and nanoflakes

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recommendations! Published in 2019 at "Journal of Physics and Chemistry of Solids"

DOI: 10.1016/j.jpcs.2019.109085

Abstract: Abstract New and interesting physical phenomena arise in ultra-small materials, such as nanoribbons and nanoflakes. Such structures have properties that are significantly modified by the width, type and shape of the edge, size and composition.… read more here.

Keywords: boron nitride; graphene boron; shaped graphene; diamond shaped ... See more keywords

CVD Synthesis of 3D-Shaped 3D Graphene Using a 3D-Printed Nickel–PLGA Catalyst Precursor

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recommendations! Published in 2021 at "ACS Omega"

DOI: 10.1021/acsomega.1c04072

Abstract: Earlier, various attempts to develop graphene structures using chemical and nonchemical routes were reported. Being efficient, scalable, and repeatable, 3D printing of graphene-based polymer inks and aerogels seems attractive; however, the produced structures highly rely… read more here.

Keywords: shaped graphene; graphene; cvd; catalyst ... See more keywords

Molecular Characterization of Three Classes of Bow-Tie-Shaped Graphene Nanoflakes by Polynomials as Alternative for Their Computed Energies and Spectral Patterns

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recommendations! Published in 2025 at "ACS Omega"

DOI: 10.1021/acsomega.5c05517

Abstract: Graphene has been recognized as one of the most promising materials for nanoelectronics in recent decades. Despite its excellent mechanical and electrical characteristics, its use in the fabrication of genuine nanoelectronic devices is frequently fraught… read more here.

Keywords: graphene nanoflakes; bow tie; shaped graphene; molecular characterization ... See more keywords

A Tunable Terahertz Metamaterial Absorber Composed of Hourglass-Shaped Graphene Arrays

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recommendations! Published in 2020 at "Nanomaterials"

DOI: 10.3390/nano10030533

Abstract: In this paper, we demonstrate a tunable periodic hourglass-shaped graphene arrays absorber in the infrared (IR) and terahertz (THz) frequency bands. The effects of graphene geometric parameters, chemical potentials, periods, and incident angles on the… read more here.

Keywords: absorption; graphene arrays; shaped graphene; graphene ... See more keywords

Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials

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recommendations! Published in 2024 at "Nanomaterials"

DOI: 10.3390/nano14120997

Abstract: Graphene can support surface plasmon polaritons (SPPs) in the terahertz band, and graphene SPP sensors are widely used in the field of terahertz micro- and nano-optical devices. In this paper, we propose an H-shaped graphene… read more here.

Keywords: induced transparency; plasmon; plasmon induced; shaped graphene ... See more keywords