Two-Dimensional Silicon Carbide: Emerging Direct Band Gap Semiconductor

Chabi, Sakineh; Kadel, Kushal

doi:10.3390/nano10112226

Cited by 93 publications

(50 citation statements)

References 115 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A detailed discussion about the structure, properties, and applications of 2D SiC has been provided in our very recent review paper [5].…”

Section: Introductionmentioning

confidence: 99%

“…The 2D form of SiC will naturally benefit from these overall SiC properties. Furthermore, as a result of reduced dimensionality and quantum confinement, 2D SiC is predicted to exhibit exotic optical and electronic properties, that are very useful for various applications [ 1 , 2 , 3 , 4 , 5 ]. Structurally, 2D SiC is predicted to have a graphene-like honeycomb structure consisting of alternating Si and C atoms.…”

Section: Introductionmentioning

confidence: 99%

“…Like bulk SiC, both multilayer and bilayer SiC have indirect band gap [ 18 , 19 , 20 ]. A detailed discussion about the structure, properties, and applications of 2D SiC has been provided in our very recent review paper [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Creation of True Two-Dimensional Silicon Carbide

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper reports the successful synthesis of true two-dimensional silicon carbide using a top-down synthesis approach. Theoretical studies have predicted that 2D SiC has a stable planar structure and is a direct band gap semiconducting material. Experimentally, however, the growth of 2D SiC has challenged scientists for decades because bulk silicon carbide is not a van der Waals layered material. Adjacent atoms of SiC bond together via covalent sp3 hybridization, which is much stronger than van der Waals bonding in layered materials. Additionally, bulk SiC exists in more than 250 polytypes, further complicating the synthesis process, and making the selection of the SiC precursor polytype extremely important. This work demonstrates, for the first time, the successful isolation of 2D SiC from hexagonal SiC via a wet exfoliation method. Unlike many other 2D materials such as silicene that suffer from environmental instability, the created 2D SiC nanosheets are environmentally stable, and show no sign of degradation. 2D SiC also shows interesting Raman behavior, different from that of the bulk SiC. Our results suggest a strong correlation between the thickness of the nanosheets and the intensity of the longitudinal optical (LO) Raman mode. Furthermore, the created 2D SiC shows visible-light emission, indicating its potential applications for light-emitting devices and integrated microelectronics circuits. We anticipate that this work will cause disruptive impact across various technological fields, ranging from optoelectronics and spintronics to electronics and energy applications.

show abstract

“…A detailed discussion about the structure, properties, and applications of 2D SiC has been provided in our very recent review paper [5].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Creation of True Two-Dimensional Silicon Carbide

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Bismuthene and phosphorene structures were obtained from literature references [63][64][65][66] and designed using Avogadro software [67]. Online Resource Fig.…”

Section: Methodsmentioning

confidence: 99%

Engineering of 2D nanomaterials to trap and kill SARS-CoV-2: a new insight from multi-microsecond atomistic simulations

Khedri

Maleki

Dahri

et al. 2021

Drug Deliv. and Transl. Res.

View full text Add to dashboard Cite

In late 2019, coronavirus disease 2019 (COVID-19) was caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Spike protein is one of the surface proteins of SARS-CoV-2 that is essential for its infectious function. Therefore, it received lots of attention for the preparation of antiviral drugs, vaccines, and diagnostic tools. In the current study, we use computational methods of chemistry and biology to study the interaction between spike protein and its receptor in the body, angiotensin-I-converting enzyme-2 (ACE2). Additionally, the possible interaction of two-dimensional (2D) nanomaterials, including graphene, bismuthene, phosphorene, p-doped graphene, and functionalized p-doped graphene, with spike protein is investigated. The functionalized p-doped graphene nanomaterials were found to interfere with spike protein better than the other tested nanomaterials. In addition, the interaction of the proposed nanomaterials with the main protease (Mpro) of SARS-CoV-2 was studied. Functionalized p-doped graphene nanomaterials showed more capacity to prevent the activity of Mpro. These 2D nanomaterials efficiently reduce the transmissibility and infectivity of SARS-CoV-2 by both the deformation of the spike protein and inhibiting the Mpro. The results suggest the potential use of 2D nanomaterials in a variety of prophylactic approaches, such as masks or surface coatings, and would deserve further studies in the coming years. Graphical abstract

show abstract

“…Recently, works by Li and Shi et al [26,27] showed that the silicon carbon monolayer possesses high thermal stabilities such that the Si 2 C 3 and SiC 3 sheets can retain their planar geometries below 3500 K and manifest excellent properties of semiconductivity and elasticity for applications in electronics and optoelectronics. Chabi et al [28] found that 2D silicon carbide (Si x C y ) is a universal material, and exhibits the same properties as graphene, silicon or silicon carbide, depending on the composition (i.e., Si 2 C 3 , SiC 3 and SiC 4 ). For extensive exploration of novel nanostructures as potential materials for CO 2 capture, a question raised in this study is whether SiC 3 nanosheets are also a promising material for CO 2 capture, and whether its capture/separation could be efficiently tuned by the charge/electric field.…”

Section: Introductionmentioning

confidence: 99%

SiC3 as a Charge-Regulated Material for CO2 Capture

Zhang¹,

Xiong²,

Liu³

2021

Crystals

View full text Add to dashboard Cite

The increasing CO2 emission rate is deteriorating the atmospheric environment, leading to global warming and climate change. The potential of the SiC3 nanosheet as a functioning material for the separation of CO2 from the mixture of CO2, H2, N2 and CH4 by injecting negative charges is studied by DFT calculations in this paper. The results show that in the absence of injecting negative charges, CO2 interacts weakly with the SiC3 nanosheet. While the interaction between CO2 and the SiC3 nanosheet can be strengthened by the injection of negative charges, the absorption mechanism of CO2 changes from physisorption to chemisorption when the injection of negative charges is switched on. H2/N2/CH4 are all physiosorbed on the SiC3 nanosheet with/without the injection of negative charges. The mechanism of CO2 adsorption/desorption on the SiC3 nanosheet could be tuned by switching on/off the injection of negative charges. Our results indicate that the SiC3 nanosheet can be regarded as a charge-regulated material for the separation of CO2 from the CO2/H2/N2/CH4 mixture.

show abstract

Two-Dimensional Silicon Carbide: Emerging Direct Band Gap Semiconductor

Cited by 93 publications

References 115 publications

The Creation of True Two-Dimensional Silicon Carbide

The Creation of True Two-Dimensional Silicon Carbide

Engineering of 2D nanomaterials to trap and kill SARS-CoV-2: a new insight from multi-microsecond atomistic simulations

SiC3 as a Charge-Regulated Material for CO2 Capture

Contact Info

Product

Resources

About