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Graphene stands as a promising material with vast potential across energy storage, electronics, etc. Here, we present a novel mechanical approach utilizing ultrasonic high-energy intercalation exfoliation to extract monolayer graphene from…

Materials Science · Physics 2025-01-15 Kaitong Sun , Si Wu , Junchao Xia , Yinghao Zhu , Guanping Xu , Hai-Feng Li

Hydrogen is one of the prime candidates for clean energy source with high energy density. However, current industrial methods of hydrogen production are difficult to provide hydrogen with high purity, thus hard to meet the requirements in…

Applied Physics · Physics 2021-07-06 Liliang Tian , Humin Duan , Jiaming Luo , Yonghong Cheng , Le Shi

Graphene as a single-atomic-layer material is fully exposed to environment and has therefore a great potential for creating of sensitive gas sensors. However, in order to realize this potential for different polluting gases, graphene has to…

Single-layer superconductors are ideal materials for fabricating superconducting nano devices. However, up to date, very few single-layer elemental superconductors have been predicted and especially no one has been successfully synthesized…

Materials Science · Physics 2019-08-06 Qinyan Gu , Dingyu Xing , Jian Sun

We present a first-principles study of the atomic hydrogen adsorption onto the Be(10\={1}0) thin film. There are two types of Be(10\={1}0) surfaces according to the interlayer spacing between the surface and its nearest-neighbor layer. We…

Materials Science · Physics 2007-05-23 Ping Zhang , Hong-Zhou Song

Penta-Graphene (PG) was theoretically proposed as a new carbon allotrope with a 2D structure. PG has revealed interesting gas sensing properties. Here, the structural and electronic properties of defective PG lattices interacting with an…

We study theoretically the strong-field absorption of an ultrafast optical pulse by a gapped graphene monolayer. At low field amplitudes, the absorbance in the pristine graphene is equal to the universal value of $2.3$ percent. Although the…

Mesoscale and Nanoscale Physics · Physics 2020-05-06 S. Azar Oliaei Motlagh , Ahmal Jawad Zafar , Aranyo Mitra , Vadym Apalkov , Mark I. Stockman

Heterostructures prepared from graphene and fluorographene (FG) using the technology of 2D printing on solid and flexible substrates were fabricated and studied. Excellent stability of printed graphene layers and, to a lesser degree,…

Laboratory measurements are used to constrain the dielectric tensor for graphite, from microwave to X-ray frequencies. The dielectric tensor is strongly anisotropic even at X-ray energies. The discrete dipole approximation is employed for…

Astrophysics of Galaxies · Physics 2016-11-09 B. T. Draine

Graphene has been attracting great interest because of its distinctive band structure and physical properties. Today, graphene is limited to small sizes because it is produced mostly by exfoliating graphite. We grew large-area graphene…

As mechanical structures enter the nanoscale regime, the influence of van der Waals forces increases. Graphene is attractive for nanomechanical systems because its Young's modulus and strength are both intrinsically high, but the mechanical…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Steven P. Koenig , Narasimha G. Boddeti , Martin L. Dunn , J. Scott Bunch

A simple molecular thermodynamic approach is applied to the study of the adsorption of gases of chain molecules on solid surfaces. We use a model based on the Statistical Associating Fluid Theory for Variable Range (SAFT-VR) potentials [A.…

Computational Physics · Physics 2010-12-23 M. Castro , R. Martinez , A. Martinez , H. C. Rosu

We show the merits of plasma enhanced atomic layer deposition (PEALD) of catalytic substrate for chemical vapour deposition (CVD) graphene growth. The high quality multilayer graphene (MLG) on molybdenum carbide ($MoC_{x}$) thin film…

Applied Physics · Physics 2019-12-06 Eldad Grady , W. M. M. Kessels , Ageeth A. Bol

Lubricant-infused surfaces (LIS) are highly efficient in repelling water and constitute a very promising family of materials for condensation processes occurring in a broad range of energy applications. However, the performance of LIS in…

We report on detailed microscopy studies of graphene and few-layer-graphene produced by mechanical exfoliation on various semi-conducting substrates. We demonstrate the possibility to prepare and analyze graphene on (001)-GaAs, manganese…

Materials Science · Physics 2009-11-13 U. Stöberl , U. Wurstbauer , W. Wegscheider , D. Weiss , J. Eroms

We review the theoretical model underpinning the recently reported room-temperature, ambient-pressure superconductivity along line defects on the surface of highly-oriented pyrolytic graphite. The main ingredients for this 1D…

Superconductivity · Physics 2024-09-10 Carlo A. Trugenberger

Using two different experimental techniques, namely, chemical vapor deposition (CVD) and physical vapor deposition (PVD), we deposited a Lead sulphide (PbS) thin films with a very small lifetime. We investigated the morphology of the…

Materials Science · Physics 2014-09-12 H. S. H. Mohamed , M. Abdel-Hafiez , B. N. Miroshnikov , A. D. Barinov , I. N. Miroshnikova

Scanning Tunneling Microscopy (STM) has been used to study the morphology of Ag, Pb and Pb/Ag bilayer films fabricated by quench condensation of the elements onto cold (T=77K), inert and atomically flat Highly Oriented Pyrolytic Graphite…

Other Condensed Matter · Physics 2009-11-10 Zhenyi Long , James M. Valles

Graphene-based photodetectors, taking advantage of high carrier mobility and broadband absorption in graphene, have recently experienced rapid development. However, their performances with respect to the responsivity and bandwidth are still…

Two-dimensional layered and atomically thin elemental superconductors may be key ingredients in next-generation quantum technologies, if they can be stabilized and integrated into heterostructured devices under ambient conditions. However,…

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