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Geometry, stability, and thermal transport of graphene nanoquilts folded by hydrogenation are studied using molecular dynamics simulations. The hydrogenated graphene nanoquilts show increased thermodynamic stability and better transport…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 Zhongwei Zhang , Yuee Xie , Qing Peng , Yuanping Chen

Multilayered graphitic materials are not suitable as load-bearers due to their inherent weak interlayer bonding (for example, graphite is a solid lubricant in certain applications). This situation is largely improved when two-dimensional…

Electrospun poly(\epsilon-caprolactone) (PCL)nanofibrous mats are widely considered for blood-contacting wound dressings and small-diameter vascular applications; however, their intrinsic hydrophobicity limits rapid wetting and controlled…

Soft Condensed Matter · Physics 2026-01-12 Romain Scarabelli , Mehdi Abbasi , Magali Gary-Bobo , Christophe Drouet , Marc Leonetti , Ahmed Al-Kattan

The formation of atomic nanoclusters on suspended graphene sheets have been investigated by employing a Molecular dynamics simulation at finite temperature. Our systematic study is based on temperature dependent Molecular dynamics…

Materials Science · Physics 2009-11-13 M. Neek-Amal , Reza Asgari , M. R. Rahimi Tabar

Time kinetics of interaction of natural graphite (GR) to colloidal graphene (G) collagen (C) nanocomposites was studied at ambient conditions, and observed that just one day at ambient conditions is enough to form colloidal graphene…

Biomolecules · Quantitative Biology 2015-12-01 Soumya Bhattacharya , Purbarun Dhar , Sarit K Das , Ranjan Ganguly , Thomas Webster , Suprabha Nayar

We study the electromagnetic properties of a metamaterial consisting of polarizable (nano)particles and a single graphene sheet placed at the interface between two dielectrics. We show that the particle's polarizability is renormalized…

Mesoscale and Nanoscale Physics · Physics 2015-06-09 Jaime E. Santos , M. I. Vasilevskiy , N. M. R. Peres , G. Smirnov , Yu. V. Bludov

The on-surface synthesis of nano-graphenes has led the charge in prototyping structures with perspectives beyond silicon-based technology. Following reports of open-shell systems in graphene-nanoribbons (GNR), a flurry of research…

Mesoscale and Nanoscale Physics · Physics 2022-08-12 Aleš Cahlík , Danyang Liu , Berk Zengin , Mert Taskin , Johannes Schwenk , Fabian Donat Natterer

Homogenous graphitic nanofibres (GNFs) have been synthesised by heat treatment of electrospun polyacrylonitrile in dimethylsulphoxide, offering a new solution route of low toxicity to manufacture sub-60 nm diameter GNFs. Fibre beading…

Materials Science · Physics 2010-05-28 Zeynep Kurban , Arthur Lovell , Derek Jenkins , Steve Bennington , Ian Loader , Alex Schober , Neal Skipper

The dynamics of polypropylene glycol, both neat and attached to silica nanoparticles, were investigated using elastic neutron backscattering and dielectric spectroscopy. The mean square displacement measured by the former is suppressed by…

Soft Condensed Matter · Physics 2017-05-03 M. Tyagi , R. Casalini , C. M. Roland

In this work, the study of thermal conductivity before and after in-situ ring-opening polymerization of cyclic butylene terephthalate into poly (butylene terephthalate) in presence of graphene-related materials (GRM) is addressed, to gain…

Materials Science · Physics 2017-06-08 S. Colonna , O. Monticelli , J. Gomez , G. Saracco , A. Fina

In recent decades, photosensitive materials have been used for the development of optical devices not only for light, but also for cold and very cold neutrons. We show that holographically recorded gratings in nanodiamond-polymer composites…

We report results of a multiscale simulation study of multilayer structures consisting of graphene sheets with embedded Pt nanoparticles. Density functional theory is used to understand the energetics of Pt-graphene interfaces and provide…

Applied Physics · Physics 2020-04-28 Samaneh Nasiri , Christian Greff , Kai Wang , Mingjun Yang , Qianqian Li , Paolo Moretti , Michael Zaiser

Successful preparation of polymer nanocomposites, exploiting graphene-related materials, via melt mixing technology requires precise design, optimization and control of processing. In the present work, the effect of different processing…

Materials Science · Physics 2017-06-08 S. Colonna , M. M. Bernal , G. Gavoci , J. Gomez , C. Novara , G. Saracco , A. Fina

Large area graphene sheets grown by chemical vapor deposition can potentially be employed as a transparent electrode in photovoltaics if their sheet resistance can be significantly lowered, without any loss in transparency. Here, we report…

Materials Science · Physics 2015-12-16 Ahmed A. Maarouf , Amal Kasry , Bhupesh Chandra , Glenn J. Martyna

In this letter, we investigate numerically (by non-equilibrium molecular dynamics) and analytically the thermal conductivity of nanoscale graphene disks (NGDs), and discussed the possibility to realize FGM with only one material, NGDs. We…

Materials Science · Physics 2015-12-07 Nuo Yang , Shiqian Hu , Dengke Ma , Tingyu Lu , Baowen Li

The exceptional mechanical properties of graphene have made it attractive for nano-mechanical devices and functional composite materials. Two key aspects of graphene's mechanical behavior are its elastic and adhesive properties. These are…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Scott Scharfenberg , D. Z. Rocklin , Cesar Chialvo , Richard L. Weaver , Paul M. Goldbart , Nadya Mason

With the unique possibilities for controlling light in nanoscale devices, graphene plasmonics has opened new perspectives to the nanophotonics community with potential applications in metamaterials, modulators, photodetectors, and sensors.…

Optics · Physics 2016-06-07 Sanshui Xiao , Xiaolong Zhu , Bo-Hong Li , N. Asger Mortensen

This work reports the modeling and simulation of gas sensors made from pristine graphene nanoplatelets (P-GnPs) using COMSOL Multiphysics software. The mass balance equation was solved while including contributions of electromigration flux.…

Instrumentation and Detectors · Physics 2022-01-24 Olasunbo Farinre , Swapnil M. Mhatre , Albert F. Rigosi , Prabhakar Misra

The enormous stiffness and low density of graphene make it an ideal material for nanoelectromechanical (NEMS) applications. We demonstrate fabrication and electrical readout of monolayer graphene resonators, and test their response to…

We demonstrate a substrate-supported thermometry platform to measure thermal conduction in nanomaterials like graphene, with no need to suspend them. We use three-dimensional simulations and careful uncertainty analysis to optimize the…

Materials Science · Physics 2014-07-24 Zuanyi Li , Myung-Ho Bae , Eric Pop
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