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Undoped graphene is semi-metallic and thus not suitable for many electronic and optoelectronic applications requiring gapped semiconductor materials. However, a periodic array of holes (antidot lattice) renders graphene semiconducting with…

Mesoscale and Nanoscale Physics · Physics 2008-06-24 Thomas G. Pedersen , Christian Flindt , Jesper Pedersen , Antti-Pekka Jauho , Niels Asger Mortensen , Kjeld Pedersen

The presence of finite bandgap and high mobility in semiconductor few-layer black phosphorus offers an attractive prospect for using this material in future two-dimensional electronic devices. Here we demonstrate for the first time fully…

We present the first systematic study of the stability of the structure and electrical properties of FeCl$_3$ intercalated few-layer graphene to high levels of humidity and high temperature. Complementary experimental techniques such as…

Materials Science · Physics 2015-06-17 D. J. Wehenkel , T. H. Bointon , T. Booth , P. Boggild , M. F. Craciun , S. Russo

In this document we explore graphene, a two-dimensional material with remarkable properties. We center our discussion around its electronic characteristics and their applications. We begin by giving a simple electronic model which will then…

Mesoscale and Nanoscale Physics · Physics 2024-02-02 Anthony Gerges Geha , Yago aguado , Modou B. Nadiaye

We investigated the utility of free-standing graphene as a transparent sample carrier for imaging nanometer-sized objects by means of low-energy electron holography. The sample preparation for obtaining contamination-free graphene as well…

Mesoscale and Nanoscale Physics · Physics 2012-09-27 Jean-Nicolas Longchamp , Tatiana Latychevskaia , Conrad Escher , Hans-Werner Fink

Diodes made of heterostructures of the 2D material graphene and conventional 3D materials are reviewed in this manuscript. Several applications in high frequency electronics and optoelectronics are highlighted. In particular, advantages of…

Due to its high charge carrier mobility, broadband light absorption, and ultrafast carrier dynamics, graphene is a promising material for the development of high-performance photodetectors. Graphene-based photodetectors have been…

Mesoscale and Nanoscale Physics · Physics 2015-02-25 Biddut K. Sarker , Isaac Childres , Edward Cazalas , Igor Jovanovic , Yong P. Chen

It is promising to apply quantum-mechanically confined graphene systems in field-effect transistors. High stability, superior performance, and large-scale integration are the main challenges facing the practical application of graphene…

Mesoscale and Nanoscale Physics · Physics 2012-01-04 Liang Feng Huang , Zhi Zeng

A blueprint for producing scalable digital graphene electronics has remained elusive. Current methods to produce semiconducting-metallic graphene networks all suffer from either stringent lithographic demands that prevent reproducibility,…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 J. Hicks , A. Tejeda , A. Taleb-Ibrahimi , M. S. Nevius , F. Wang , K. Shepperd , J. Palmer , F. Bertran , P. Le Fèvre , J. Kunc , W. A. de Heer , C. Berger , E. H. Conrad

Graphene, being an ultrathin, durable, flexible, transparent material with superior conductivity and unusual optical properties, promises many novel applications in electronics, photonics and optoelectronics. For applications in…

Materials Science · Physics 2015-06-22 Jukka Aumanen , Andreas Johansson , Juha Koivistoinen , Pasi Myllyperkiö , Mika Pettersson

Transparent and conductive films (TCFs) are of great technological importance. The high transmittance, electrical conductivity and mechanical strength make single-walled carbon nanotubes (SWCNTs) a good candidate for their raw material.…

As a new carbon allotrope, the recently fabricated graphdiyne has attracted much attention due to its interesting two-dimensional character. Here we demonstrate by multiscale computations that, unlike graphene, graphdiyne has a natural band…

Mesoscale and Nanoscale Physics · Physics 2015-04-30 L. Sun , P. H. Jiang , H. J. Liu , D. D. Fan , J. H. Liang , J. Wei , L. Cheng , J. Zhang , J. Shi

Graphene has attracted much attention as one of promising candidates of future high-speed transistor materials because of its high carrier mobility of more than 10,000 cm2 V-1 s-1. Up to this point, we have focused on the contact properties…

Materials Science · Physics 2013-04-26 Kosuke Nagashio , Akira Toriumi

Optical isolators are an important building block in photonic computation and communication. In traditional optics, isolators are realized with magneto-optical garnets. However, it remains challenging to incorporate such materials on an…

Optics · Physics 2016-05-04 Jingwen Ma , Xiang Xi , Zejie Yu , Xiankai Sun

Ultralow dimensionality of 2D layers magnifies their sensitivity to adjacent charges enabling even postprocessing electric control of multifunctional structures. However, functionalizing 2D layers remains an important challenge for…

Mesoscale and Nanoscale Physics · Physics 2024-05-07 K. Maity , J. -F. Dayen , B. Doudin , R. Gumeniuk , B. Kundys

This work evaluates the performance of carbon nanotube field effect transistors (CNTFET) using few layer graphene as the contact electrode material. We present the experimental results obtained on the barrier height at CNT graphene junction…

Mesoscale and Nanoscale Physics · Physics 2016-11-17 P R Yasasvi Gangavarapu , Punith Chikkahalli Lokesh , K N Bhat , A K Naik

Graphene, the carbon monolayer and 2D allotrope of graphite, has the potential to impact technology with a wide range of applications such as optical modulators for high-speed communications. In contrast to modulation devices that rely on…

Hydrodynamic electrons in high-mobility graphene devices have demonstrated great potential in establishing an electronic analogue of relativistic quantum fluid in solid-state systems. One of the key requirements for observing viscous…

Mesoscale and Nanoscale Physics · Physics 2026-02-20 Richa P. Madhogaria , Aniket Majumdar , Nishant Dahma , Pritam Pal , Rishabh Hangal , Kenji Watanabe , Takashi Taniguchi , Arindam Ghosh

Tuning the macroscopic dielectric response on demand holds potential for actively tunable metaphotonics and optical devices. In recent years, graphene has been extensively investigated as a tunable element in nanophotonics. Significant…

Applied Physics · Physics 2019-10-23 Jeremy Brouillet , Georgia T. Papadakis , Harry A. Atwater

Graphene, a 2-dimensional monolayer form of sp2 hybridizated carbon atoms, is attracting increasing attention due to its unique and superior physicochemical properties. Covalently functionalized graphene layers, with their modifiable…

Materials Science · Physics 2014-08-11 Karolina Z. Milowska , Jacek A. Majewski