نتایج جستجو برای: graphene ribbon

تعداد نتایج: 54334  

2015
Zubin Li Kan Yao Fengnian Xia Sheng Shen Jianguo Tian Yongmin Liu

Metasurfaces utilizing engineered metallic nanostructures have recently emerged as an important means to manipulate the propagation of light waves in a prescribed manner. However, conventional metallic metasurfaces mainly efficiently work in the visible and near-infrared regime, and lack sufficient tunability. In this work, combining the pronounced plasmonic resonance of patterned graphene stru...

Journal: :Energies 2022

This article addresses reliability under the sweat of interconnection techniques for mounting surface mounted device (SMD) components and fully printed humidity sensors onto conductive stretchable textile ribbons. Samples underwent testing effect ageing by artificial on their electrical resistance using both alkaline acidic sweat. The best results in terms change were obtained samples soldered ...

Journal: :Small 2010
Eberhard Ulrich Stützel Marko Burghard Klaus Kern Floriano Traversi Fabrizio Nichele Roman Sordan

S D C1 C2 Over the past few years there has been a surge of interest in graphene, a recently isolated [ 1 ] one-atom-thick layer of carbon atoms arranged in a honeycomb lattice. From the application point of view this interest has mainly been driven by the high carrier mobility of graphene [ 2–4 ] which enables fabrication of fi eld-effect transistors (FETs) with much smaller channel resistance...

2018
Jingcheng Li Nestor Merino-Díez Eduard Carbonell-Sanromà Manuel Vilas-Varela Dimas G de Oteyza Diego Peña Martina Corso Jose Ignacio Pascual

We report on the construction and magnetic characterization of a fully functional hybrid molecular system composed of a single magnetic porphyrin molecule bonded to graphene nanoribbons with atomically precise contacts. We use on-surface synthesis to direct the hybrid creation by combining two molecular precursors on a gold surface. High-resolution imaging with a scanning tunneling microscope f...

Journal: :Advanced Functional Materials 2021

Lateral quantum confinement is of great interest in tuning the electronic properties graphene-based nanostructures, making them suitable for technological applications. In principle, these might be controlled through edge topology: example, zigzag nanoribbons are predicted to have spin-polarized states. The practical realization structures utmost importance fully harnessing graphene. Here, form...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2015
N Fujita P J Hasnip M I J Probert J Yuan

A systematic study of simulated atomic-resolution electronic energy-loss spectroscopy (EELS) for different graphene nanoribbons (GNRs) is presented. The results of ab initio studies of carbon [Formula: see text] core-loss EELS on GNRs with different ribbon edge structures and different hydrogen terminations show that theoretical core-loss EELS can distinguish key structural features at the atom...

2008
D. Basu S. K. Banerjee A. H. MacDonald

Results of quantum mechanical simulations of the influence of edge disorder on transport in graphene nanoribbon metal-oxide-semiconductor field-effect transistors MOSFETs are reported. The addition of edge disorder significantly reduces ON-state currents and increases OFF-state currents, and introduces wide variability across devices. These effects decrease as ribbon widths increase and as edge...

2017
Cristian Vacacela Gomez Michele Pisarra Mario Gravina Antonello Sindona

Recent experimental evidence for and the theoretical confirmation of tunable edge plasmons and surface plasmons in graphene nanoribbons have opened up new opportunities to scrutinize the main geometric and conformation factors, which can be used to modulate these collective modes in the infrared-to-terahertz frequency band. Here, we show how the extrinsic plasmon structure of regular planar arr...

Journal: :ACS nano 2011
Minsheng Wang Emil B Song Sejoon Lee Jianshi Tang Murong Lang Caifu Zeng Guangyu Xu Yi Zhou Kang L Wang

Bilayer graphene has recently earned great attention for its unique electronic properties and commendable use in electronic applications. Here, we report the observation of quantum dot (QD) behaviors in bilayer graphene nanoribbons (BL-GNRs). The periodic Coulomb oscillations indicate the formation of a single quantum dot within the BL-GNR because of the broad distribution function of the carri...

2009
Jessica Campos-Delgado Jose Manuel Romo-Herrera Xiaoting Jia David A. Cullen Hiroyuki Muramatsu Yoong Ahm Kim Takuya Hayashi Zhifeng Ren David J. Smith Yu Okuno Tomonori Ohba Hirofumi Kanoh Katsumi Kaneko Morinobu Endo Humberto Terrones Mildred S. Dresselhaus Mauricio Terrones José Manuel Romo-Herrera

We report the use of chemical vapor deposition (CVD) for the bulk production (grams per day) of long, thin, and highly crystalline graphene ribbons (<20-30 μm in length) exhibiting widths of 20-300 nm and small thicknesses (2-40 layers). These layers usually exhibit perfect ABAB... stacking as in graphite crystals. The structure of the ribbons has been carefully characterized by several techniq...

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