Articles with "graphene nanoribbon" as a keyword



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Graphene Nanoribbon Based Thermoelectrics: Controllable Self‐ Doping and Long‐Range Disorder

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Published in 2017 at "Advanced Science"

DOI: 10.1002/advs.201600467

Abstract: Control of both the regularity of a material ensemble and nanoscale architecture provides unique opportunities to develop novel thermoelectric applications based on 2D materials. As an example, the authors explore the electronic and thermal properties… read more here.

Keywords: graphene nanoribbon; long range; nanoribbon based; range disorder ... See more keywords
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An ultra-sensitive gas nanosensor based on asymmetric dual-gate graphene nanoribbon field-effect transistor: proposal and investigation

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Published in 2019 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-019-01349-9

Abstract: In this paper, a new ultra-sensitive gas nanosensor based on an asymmetric dual-gate graphene nanoribbon field-effect transistor (ADG GNRFET) is proposed. The performance of the proposed gas nanosensor is examined using an atomistic quantum simulation… read more here.

Keywords: gas; gas nanosensor; ultra sensitive; graphene nanoribbon ... See more keywords
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A computationally efficient hybrid approach based on artificial neural networks and the wavelet transform for quantum simulations of graphene nanoribbon FETs

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Published in 2019 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-019-01350-2

Abstract: Numerical modeling of graphene nanoribbon field-effect transistors (GNRFETs) using quantum-mechanical approaches is often associated with a heavy computational burden, indicating the urgent need for new methods to resolve this issue. A computationally efficient hybrid approach… read more here.

Keywords: computationally efficient; graphene nanoribbon; quantum simulations; approach ... See more keywords
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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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Monte Carlo study of magnetization plateaus in a zigzag graphene nanoribbon structure

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Published in 2017 at "Carbon"

DOI: 10.1016/j.carbon.2017.05.052

Abstract: Abstract The Monte Carlo simulation has been applied to discuss the step effect on a zigzag graphene nanoribbon structure in a longitudinal magnetic field. The effects of the singe-ion anisotropies, longitudinal magnetic fields and temperature… read more here.

Keywords: magnetization plateaus; graphene nanoribbon; zigzag graphene; nanoribbon structure ... 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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Chevron-based graphene nanoribbon heterojunctions: Localized effects of lateral extension and structural defects on electronic properties

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Published in 2018 at "Carbon"

DOI: 10.1016/j.carbon.2018.03.054

Abstract: Abstract Graphene nanoribbon (GNR) heterojunctions have been synthesized by a bottom-up approach on an Au (111) substrate from a mixture of two structurally similar but visually distinct chevron-type molecular precursors. The resulting heterojunctions were composed… read more here.

Keywords: gnr heterojunctions; lateral extension; effects lateral; graphene nanoribbon ... See more keywords
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Favorable thermoelectric performance in a Rashba spin-orbit coupled ac-driven graphene nanoribbon

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Published in 2021 at "Carbon"

DOI: 10.1016/j.carbon.2020.09.085

Abstract: Abstract A possible route is given to achieve enhanced thermoelectric (TE) performance in a spin-orbit (SO) coupled graphene nanoribbon (GNR). The GNR is irradiated with a suitable polarized light so that the transmission function can… read more here.

Keywords: graphene nanoribbon; performance; thermoelectric performance; orbit coupled ... 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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A facile synthesis of graphene nanoribbon-quantum dot hybrids and their application for composite electrolyte membrane in direct methanol fuel cells

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Published in 2019 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2018.11.162

Abstract: Abstract In this work, we report the concept of synthesizing graphene nanoribbon-graphene quantum dot (GNR-GQD) hybrids with even grafting of GQD on GNR sheet in a facile single step process under ultrasonication in chlorosulfonic acid.… read more here.

Keywords: quantum dot; graphene nanoribbon; methanol fuel; graphene ... See more keywords
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Computational evaluation of superalkali-decorated graphene nanoribbon as advanced hydrogen storage materials

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Published in 2021 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2021.05.023

Abstract: Abstract In this study, we proposed that homo superalkali NM4 clusters with high tetrahedral geometry, can be applied to develop high-performance hydrogen storage materials. Moreover, their special bonding structures and chemical stability make them ideal… read more here.

Keywords: superalkali; graphene nanoribbon; hydrogen storage; storage ... See more keywords