Articles with "tunable graphene" as a keyword



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Frequency Tunable Graphene Metamaterial Reflectarray

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-018-5884-1

Abstract: In this paper, the radiation characteristics of frequency tunable graphene based metamaterial reflectarray have been investigated. The unit-cell consists of graphene two gaps split-ring-resonator (SRR) printed on a thick SiO2 substrate. The metamaterial parameters of… read more here.

Keywords: graphene metamaterial; frequency tunable; tunable graphene; graphene ... See more keywords

High sensitivity and tunable graphene arrays dual-band plasmonic sensor based on surface plasmons

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Published in 2019 at "Optik"

DOI: 10.1016/j.ijleo.2019.04.024

Abstract: Abstract In this paper, we demonstrated a high sensitivity and tunable graphene arrays dual-band plasmonic sensor based on surface plasmons. Through simulation, we obtained the initial split-ring resonator (SRR) structure with two clear transmission dips.… read more here.

Keywords: graphene; structure; sensitivity; high sensitivity ... See more keywords
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Tunable graphene doping by modulating the nanopore geometry on a SiO2/Si substrate

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Published in 2018 at "RSC Advances"

DOI: 10.1039/c7ra11601b

Abstract: A tunable graphene doping method utilizing a SiO2/Si substrate with nanopores (NP) was introduced. Laser interference lithography (LIL) using a He–Cd laser (λ = 325 nm) was used to prepare pore size- and pitch-controllable NP… read more here.

Keywords: sio2 substrate; geometry; tunable graphene; graphene doping ... See more keywords
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Ultra-sensitive and plasmon-tunable graphene photodetectors for micro-spectrometry.

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Published in 2018 at "Nanoscale"

DOI: 10.1039/c8nr04996c

Abstract: We demonstrate an ultra-sensitive photodetector based on a graphene/monolayer MoS2 vertical heterostructure working at room temperature. Highly confined plasmon waves are efficiently excited through a periodic array of monolayer graphene ribbons in which plasmon resonance… read more here.

Keywords: sensitive plasmon; tunable graphene; graphene; plasmon tunable ... See more keywords
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Chemically exfoliated highly conductive layer-tunable graphene by simply controlling the exfoliating temperature.

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Published in 2019 at "Nanotechnology"

DOI: 10.1088/1361-6528/ab3b40

Abstract: The development of effective strategies for the massive production of layer-number tunable graphene is of great importance to satisfy the requirements in versatile applications such as energy storage, thermal management, photocatalysis. However, how to prepare… read more here.

Keywords: layer tunable; tunable graphene; temperature; graphene ... See more keywords

Multiwideband Terahertz Communications Via Tunable Graphene-Based Metasurfaces in 6G Networks: Graphene Enables Ultimate Multiwideband THz Wavefront Control

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Published in 2022 at "IEEE Vehicular Technology Magazine"

DOI: 10.1109/mvt.2022.3155905

Abstract: The next generation of wireless networks is expected to tap into the terahertz (THz) band (0.1–10 THz) to satisfy the extreme latency and bandwidth density requirements of future applications. However, the development of systems in… read more here.

Keywords: thz; tunable graphene; multiwideband; terahertz ... See more keywords
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Electrically tunable graphene-based metamaterials: A brief review

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Published in 2019 at "Modern Physics Letters B"

DOI: 10.1142/s0217984919504049

Abstract: Metamaterials (MMs) represent a group of exciting artificial materials that interact with electromagnetic waves in unnatural ways. The motivation behind MM research arises not only from fundamental... read more here.

Keywords: electrically tunable; graphene based; tunable graphene; based metamaterials ... See more keywords
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Novel tunable graphene-encoded metasurfaces on an uneven substrate for beam-steering in far-field at the terahertz frequencies.

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Published in 2020 at "Optics express"

DOI: 10.1364/oe.386697

Abstract: In this paper, we present a novel tunable graphene coding metasurface structure using a circular graphene patch on an uneven substrate. By changing the Fermi level of graphene or the thickness of the substrate, we… read more here.

Keywords: tunable graphene; graphene; novel tunable; uneven substrate ... See more keywords