Enhanced Absorption with Graphene-Coated Silicon Carbide Nanowires for Mid-Infrared Nanophotonics

Rufangura, Patrick; Khodasevych, Iryna; Agrawal, Arti; Bosi, Matteo; Folland, Thomas G.; Caldwell, Joshua D.; Iacopi, Francesca

doi:10.3390/nano11092339

Cited by 7 publications

(5 citation statements)

References 58 publications

(91 reference statements)

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“…Being bound to the SiC, the material properties would need to be understood and considered in the design of any subsequent graphene-based devices. This would be particularly true in the Reststrahlen band of SiC owing to the near-total reflection of EM waves from it and the SP-phonon coupling [100,185].…”

Section: Graphene Antennas On Sicmentioning

confidence: 99%

Review of graphene for the generation, manipulation, and detection of electromagnetic fields from microwave to terahertz

et al. 2022

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Graphene has attracted considerable attention ever since the discovery of its unprecedented properties, including its extraordinary and tunable electronic and optical properties. In particular, applications within the microwave to terahertz frequency spectrum can benefit from graphene’s high electrical conductivity, mechanical flexibility and robustness, transparency, support of surface-plasmon-polaritons, and the possibility of dynamic tunability with direct current to light sources. This review aims to provide an in-depth analysis of current trends, challenges, and prospects within the research areas of generating, manipulating, and detecting electromagnetic fields using graphene-based devices that operate from microwave to terahertz frequencies. The properties of and models describing graphene are reviewed first, notably those of importance to electromagnetic applications. State-of-the-art graphene-based antennas, such as resonant and leaky-wave antennas, are discussed next. A critical evaluation of the performance and limitations within each particular technology is given. Graphene-based metasurfaces and devices used to manipulate electromagnetic fields, e.g., wavefront engineering, are then examined. Lastly, the state-of-the-art of detecting electromagnetic fields using graphene-based devices is discussed.

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Section: Graphene Antennas On Sicmentioning

confidence: 99%

Review of graphene for the generation, manipulation, and detection of electromagnetic fields from microwave to terahertz

et al. 2022

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“…Note that our previous work has indicated the support of plasmonic resonances in EG grown on SiC nanowires using the catalytic alloy-mediated graphitization approach used in this work [41].…”

Section: Patterning Using Electron Beam Lithographymentioning

confidence: 60%

“…Since the sidewalls of the patterned SiC are also graphitized, this approach results in three-dimensional graphene-coated SiC structures. This approach has been extensively used to create large-scale graphene-coated SiC micro and nanostructures for MEMS, electronics, and photonics applications [40][41][42]. Note that the above selective bottom-up patterning is inherently tied to the use of SiC/Si pseudo-substrates to obtain a selective graphene growth only where the SiC is present.…”

Section: Introductionmentioning

confidence: 99%

Direct synthesis of nanopatterned epitaxial graphene on silicon carbide

Katzmarek

Mancini²,

Maier

et al. 2023

Nanotechnology

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This article introduces a straightforward approach for the direct synthesis of transfer-free, nanopatterned epitaxial graphene on silicon carbide on silicon substrates. A catalytic alloy tailored to optimal SiC graphitization is pre-patterned with common lithography and lift-off techniques to form planar graphene structures on top of an unpatterned SiC layer. This method is compatible with both electron-beam lithography and UV-lithography, and graphene gratings down to at least ~100 nm width/space can be realized at the wafer scale. The minimum pitch is limited by the flow of the metal catalyst during the liquid-phase graphitization process. We expect that the current pitch resolution could be further improved by optimizing the metal deposition method and lift-off process.

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“…The corresponding characteristic peaks of ZIF-8 (ZnZIF) were clearly observed in the XRD patterns of the ZIF-8 and E-SiC-ZnFeZIF metal matrix composites, indicating that the introduction of E-SiC nanoparticles into ZnFeZIF did not damage its structure and crystallinity [ 26 ]. Figure 3 b shows a new intense broad band centered at 861 cm −1 for E-SiC [ 27 ], which correspond to the Si–C fundamental stretching vibration [ 28 ]. For E-SiCFeZIF and E-SiCZnFeZIF, there are corresponding SiC characteristic peaks (861 cm −1 ).…”

Section: Resultsmentioning

confidence: 99%

SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide

et al. 2023

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Herein, we encapsulated modified silicon carbide nanoparticles utilizing a metal–organic backbone. E-SiC-FeZnZIF composites were successfully prepared via Fe doping. The catalysis activity of this bifunctional composite material was evaluated by the degradation of tetracycline (THC) and carbamazepine (CBZ) and the reduction of carbon dioxide (CO2). Nano SiC has received widespread attention in advanced oxidation applications, especially in the catalytic activation of peroxymonosulfate (PMS). However, the inferior activity of SiC has severely restricted its practical use. In this study of dual functional composite materials, nano SiC was firstly etched under aqueous alkali. Then, zeolite imidazolate frame-8 (ZIF-8) was used for immobilization. The filling of the etched nano SiC with FeZnZiF was confirmed by SEM, XRD, FTIR, BET, and XPS analyses. In addition, E-SiC-FeZnZIF exhibited excellent catalytic activation of peroxymonosulfate (PMS) to oxidize water pollutants, which can degrade tetracycline hydrochloride (THC), achieving a removal rate of 72% within 60 min. Moreover, E-SiC-FeZnZIF exhibited a relatively high CO2 reduction rate with H2O. The yields of CO and CH4 were 0.085 and 0.509 μmol g−1, respectively, after 2 h, which are higher than that of 50 nm of commercial SiC (CO: 0.084 μmol g−1; CH4: 0.209 μmol g−1). This work provides a relatively convenient synthesis path for constructing metal skeleton composites for advanced oxidation and photocatalytic applications. This will have practical significance in protecting water bodies and reducing CO2, which are vital not only for maintaining the natural ecological balance and negative feedback regulation, but also for creating a new application carrier based on nano silicon carbide.

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Enhanced Absorption with Graphene-Coated Silicon Carbide Nanowires for Mid-Infrared Nanophotonics

Cited by 7 publications

References 58 publications

Review of graphene for the generation, manipulation, and detection of electromagnetic fields from microwave to terahertz

Review of graphene for the generation, manipulation, and detection of electromagnetic fields from microwave to terahertz

Direct synthesis of nanopatterned epitaxial graphene on silicon carbide

SiC@FeZnZiF as a Bifunctional Catalyst with Catalytic Activating PMS and Photoreducing Carbon Dioxide

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