Articles with "armchair graphene" as a keyword



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Investigation of 6-armchair graphene nanoribbon tunnel FETs

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Published in 2021 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-021-01709-4

Abstract: A simulation-based study of an n-type six-dimer-line armchair graphene nanoribbon (6-AGNR) tunnel field-effect transistor with asymmetric reservoir doping density is carried out. Tunnel field-effect transistor (TFET) structures are proposed based on a detailed investigation of… read more here.

Keywords: investigation; tunnel; graphene nanoribbon; armchair graphene ... See more keywords
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Impact of geometry on transport properties of armchair graphene nanoribbon heterojunction

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Published in 2017 at "Carbon"

DOI: 10.1016/j.carbon.2017.09.005

Abstract: Abstract Electron transport properties of undoped armchair Graphene Nanoribbon Heterojunction (GNRHJ) has been studied using semi-empirical extended Huckel method (EH). A two-probe configuration device utilizing armchair GNRHJ has been proposed. It is shown that a… read more here.

Keywords: transport properties; nanoribbon heterojunction; armchair graphene; geometry ... See more keywords
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Dynamics of charge quasiparticles generation in armchair graphene nanoribbons

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Published in 2018 at "Carbon"

DOI: 10.1016/j.carbon.2018.02.062

Abstract: Abstract Graphene nanoribbons are systems that can combine intrinsic bandgap with high charge carrier mobility, playing an important role for applications such as photonics and optoelectronics. In this work, we study the dynamics of different… read more here.

Keywords: graphene nanoribbons; armchair graphene; dynamics charge; charge quasiparticles ... See more keywords
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The effects of electron-phonon coupling and magnetic field on charge structure factors of armchair graphene nanoribbons

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Published in 2020 at "Chemical Physics"

DOI: 10.1016/j.chemphys.2019.110592

Abstract: Abstract We present the behaviors of both dynamical and static charge susceptibilities of undoped armchair graphene nanoribbon using the Green’s function approach in the context of Holstein model Hamiltonian. Specially, the effects of magnetic field… read more here.

Keywords: electron phonon; phonon coupling; armchair graphene; charge ... See more keywords
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Negative differential resistance effect in different structures of armchair graphene nanoribbon

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Published in 2020 at "Diamond and Related Materials"

DOI: 10.1016/j.diamond.2020.107970

Abstract: Abstract Graphene is a one-atom-thick stable covalently bonded carbon layer ordered in a honeycomb lattice. Single layer graphene of nanoscale width (including a few numbers of atoms across the width) is known as Graphene Nanoribbon,… read more here.

Keywords: graphene; armchair graphene; differential resistance; graphene nanoribbon ... See more keywords
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Large rectification ratio induced by nitrogen and boron doping in adjacent armchair graphene nanoribbons

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Published in 2020 at "Materials Letters"

DOI: 10.1016/j.matlet.2020.127957

Abstract: Abstract The rectification behavior of two and three separated armchair graphene nanoribbons (AGNRs) which one of them plays the role of channel and others play the role of side gates is investigated. The tight-binding density… read more here.

Keywords: side gates; rectification; graphene nanoribbons; nitrogen boron ... See more keywords
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Electron-transport and gas sensing in armchair graphene nanoribbons by density functional method

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Published in 2021 at "Materials Science in Semiconductor Processing"

DOI: 10.1016/j.mssp.2021.105881

Abstract: Abstract Findings regarding the application of gas sensing on graphene based material have led to jump in nanotechnology. Hence, producing the high-efficiency materials in this technology is a priority. Recent development in graphene based material… read more here.

Keywords: gas; transport; graphene nanoribbons; gas sensing ... See more keywords
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Chemical Vapor Deposition Synthesis and Terahertz Photoconductivity of Low-Band-Gap N = 9 Armchair Graphene Nanoribbons.

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Published in 2017 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.7b00776

Abstract: Recent advances in bottom-up synthesis of atomically defined graphene nanoribbons (GNRs) with various microstructures and properties have demonstrated their promise in electronic and optoelectronic devices. Here we synthesized N = 9 armchair graphene nanoribbons (9-AGNRs)… read more here.

Keywords: band gap; chemical vapor; graphene nanoribbons; armchair graphene ... See more keywords
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Lateral Fusion of Chemical Vapor Deposited N = 5 Armchair Graphene Nanoribbons

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Published in 2017 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.7b05055

Abstract: Bottom-up synthesis of low-bandgap graphene nanoribbons with various widths is of great importance for their applications in electronic and optoelectronic devices. Here we demonstrate a synthesis of N = 5 armchair graphene nanoribbons (5-AGNRs) and… read more here.

Keywords: lateral fusion; chemical vapor; graphene nanoribbons; armchair graphene ... See more keywords
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A modular synthetic approach for band-gap engineering of armchair graphene nanoribbons

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Published in 2018 at "Nature Communications"

DOI: 10.1038/s41467-018-03747-2

Abstract: Despite the great promise of armchair graphene nanoribbons (aGNRs) as high-performance semiconductors, practical band-gap engineering of aGNRs remains an unmet challenge. Given that width and edge structures are the two key factors for modulating band-gaps… read more here.

Keywords: gap; band gap; graphene nanoribbons; armchair graphene ... See more keywords
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A new on-surface synthetic pathway to 5-armchair graphene nanoribbons on Cu(111) surfaces.

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Published in 2017 at "Faraday discussions"

DOI: 10.1039/c7fd00129k

Abstract: We report a new pathway to fabricate armchair graphene nanoribbons with five carbon atoms in the cross section (5-AGNRs) on Cu(111) surfaces. Instead of using haloaromatics as precursors, the 5-AGNRs are synthesized via a surface… read more here.

Keywords: new surface; graphene nanoribbons; surface; armchair graphene ... See more keywords