Twin graphene: A novel two-dimensional semiconducting carbon allotrope

Jiang, Jin-Wu; Leng, Jiantao; Li, Jianxin; Guo, Zhengrong; Chang, Tienchong; Guo, Xingming; Zhang, Tong‐Yi

doi:10.1016/j.carbon.2017.03.067

Cited by 184 publications

(102 citation statements)

References 61 publications

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“…As illustrated in Fig. 6, the NEMD 11 results also show that the behavior of thermal conductivity along with both directions is incremental. The slope of thermal conductivity along the zigzag direction is insignificant because in this direction there is at least one sharp defect which does not allow pass heat flux enough.…”

Section: Fig 5 Thermal Conductivity Of the Npg Monolayer Along Withmentioning

confidence: 72%

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Thermal conductivity and thermal rectification of nanoporous graphene: A molecular dynamics simulation

Yousefi

Khoeini

Rajabpour

2020

International Journal of Heat and Mass Transfer

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Using non-equilibrium molecular dynamics (NEMD) simulation, we study thermal properties of the so-called nanoporous graphene (NPG) sheet which contains a series of nanoporous in an ordered way and was synthesized recently (Science 360 (2018), 199).The dependence of thermal conductivity on sample size, edge chirality, and porosity concentration are investigated. Our results indicate that the thermal conductivity of NPG is about two orders smaller compared with of pristine graphene. Therefore this sheet can be used as a thermoelectric material. Also, the porosity concentration helps us to tune the thermal conductivity. Moreover, the results show that the thermal conductivity increases with growing sample length due to ballistic transport. On the other hand, along the armchair direction, the thermal conductivity is larger than zigzag direction. We also examined the thermal properties of the interface of NPG and graphene. The temperature drops significantly through the interface leading to the thermal resistance. The thermal resistance changes with imposed heat flux direction, and this difference cause significantly large thermal rectification factor, and heat current prefers one direction to another. Besides, to investigate those quantities fundamentally, we study the phonon density of states and scattering of them.2

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Section: Fig 5 Thermal Conductivity Of the Npg Monolayer Along Withmentioning

confidence: 72%

“…This issue encouraged the people around the world to design and synthesis novel 2D nanosheets such as borophene [7], phospherene [8], Molybdenum disulfide [9], and carbon nitride [10]. As an example, recently a 2D semiconductor nanosheet so-called twin-graphene was predicted by first-principles calculations with 0.981eV band gap [11].…”

Section: Introductionmentioning

confidence: 99%

Thermal conductivity and thermal rectification of nanoporous graphene: A molecular dynamics simulation

Yousefi

Khoeini

Rajabpour

2020

International Journal of Heat and Mass Transfer

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“…Apart from graphene, many different 2D analogues of elemental carbon have been proposed to date theoretically, although none with any experimental success to date. Among them, penta‐graphene has been extensively explored theoretically.…”

Section: Synthesis Of Elemental 2d Materialsmentioning

confidence: 99%

“…Shahrokhi predicted that biaxial tensile strain increases the bandgap of penta‐graphene while compressive strain reduces the bandgap . Among other carbon allotropes, psi‐graphene was predicted to be metallic even under in‐plane strain, while bandgap could be tuned for semiconducting twin‐graphene (≈1 eV) via applying strain . For group V elements, monolayer antimonene was predicted to have a 2.3 eV indirect bandgap that undergoes an indirect‐to‐direct transition under strain …”

Section: Modulation Of Electronic Bandgap In 2d Materialsmentioning

confidence: 99%

Emerging Applications of Elemental 2D Materials

et al. 2019

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As elemental main group materials (i.e., silicon and germanium) have dominated the field of modern electronics, their monolayer 2D analogues have shown great promise for next‐generation electronic materials as well as potential game‐changing properties for optoelectronics, energy, and beyond. These atomically thin materials composed of single atomic variants of group III through group VI elements on the periodic table have already demonstrated exciting properties such as near‐room‐temperature topological insulation in bismuthene, extremely high electron mobilities in phosphorene and silicone, and substantial Li‐ion storage capability in borophene. Isolation of these materials within the postgraphene era began with silicene in 2010 and quickly progressed to the experimental identification or theoretical prediction of 15 of the 18 main group elements existing as solids at standard pressure and temperatures. This review first focuses on the significance of defects/functionalization, discussion of different allotropes, and overarching structure–property relationships of 2D main group elemental materials. Then, a complete review of emerging applications in electronics, sensing, spintronics, plasmonics, photodetectors, ultrafast lasers, batteries, supercapacitors, and thermoelectrics is presented by application type, including detailed descriptions of how the material properties may be tailored toward each specific application.

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“…These carbon structures have proven strong potentials in revolutionizing wide range of applications globally. Basically, they can be classified as zero-dimensional (0D) fullerenes, one-dimensional (1D) carbon nanotubes, two-dimensional (2D) graphene, and three-dimensional (3D) graphite which consist of carbon as the building block [5,6]. CNTs are made of hexagonal network of sp 2 hybridization of carbon atoms that is similar to graphene [1].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Carbon Nanomaterials from Rice Husk via Microwave Oven

Asnawi

Azhari

Hamidon

et al. 2018

Journal of Nanomaterials

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Microwave oven was utilized to fabricate carbon nanostructure, specifically CNTs, from waste RH powders. It has been shown that the use of carbon source, catalyst, and commercial microwave oven to induce plasma is necessary to carry on this synthesis. The plasma enhances and speeds up the catalytic decomposition of RH in presence of ferrocene. FESEM, TGA, and Raman spectroscopy were utilized to confirm the presence and quality of produced carbon nanomaterials. In addition, these results suggest the conversion of ferrocene to iron(II, III) oxide with notable conversion rate.

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Twin graphene: A novel two-dimensional semiconducting carbon allotrope

Cited by 184 publications

References 61 publications

Thermal conductivity and thermal rectification of nanoporous graphene: A molecular dynamics simulation

Thermal conductivity and thermal rectification of nanoporous graphene: A molecular dynamics simulation

Emerging Applications of Elemental 2D Materials

Synthesis of Carbon Nanomaterials from Rice Husk via Microwave Oven

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