scholarly journals Correction: Poljak et al. Metallization-Induced Quantum Limits of Contact Resistance in Graphene Nanoribbons with One-Dimensional Contacts. Materials 2021, 14, 3670

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6965
Author(s):  
Mirko Poljak ◽  
Mislav Matić
Keyword(s):  
Contact Resistance ◽  
Graphene Nanoribbons ◽  
One Dimensional ◽  
Al Metallization ◽  
Quantum Limits ◽  
Published Paper

The authors regret that the results presented in Figure 3c,d and Figure 6c,d in our published paper [...]

scholarly journals Metallization-Induced Quantum Limits of Contact Resistance in Graphene Nanoribbons with One-Dimensional Contacts

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3670
Author(s):  
Mirko Poljak ◽  
Mislav Matić
Keyword(s):  
Integrated Circuits ◽  
Contact Resistance ◽  
Transport Properties ◽  
Graphene Nanoribbons ◽  
Wide Band ◽  
Quantum Limit ◽  
Metal Contacts ◽  
Worst Case ◽  
One Dimensional ◽  
Quantum Limits

Graphene has attracted a lot of interest as a potential replacement for silicon in future integrated circuits due to its remarkable electronic and transport properties. In order to meet technology requirements for an acceptable bandgap, graphene needs to be patterned into graphene nanoribbons (GNRs), while one-dimensional (1D) edge metal contacts (MCs) are needed to allow for the encapsulation and preservation of the transport properties. While the properties of GNRs with ideal contacts have been studied extensively, little is known about the electronic and transport properties of GNRs with 1D edge MCs, including contact resistance (RC), which is one of the key device parameters. In this work, we employ atomistic quantum transport simulations of GNRs with MCs modeled with the wide-band limit (WBL) approach to explore their metallization effects and contact resistance. By studying density of states (DOS), transmission and conductance, we find that metallization decreases transmission and conductance, and either enlarges or diminishes the transport gap depending on GNR dimensions. We calculate the intrinsic quantum limit of width-normalized RC and find that the limit depends on GNR dimensions, decreasing with width downscaling to ~3 Ω∙µm in 0.4 nm-wide GNRs, and increasing with length downscaling up to ~30 Ω∙µm in 5 nm-long GNRs. The worst-case total RC is only ~40 Ω∙µm, which demonstrates that there is room for RC improvement in comparison to the published experimental data, and that GNRs present a promising channel material for future extremely-scaled electronic nanodevices.

2D Self-assembly and Electronic Characterization of Oxygen-Boron-Oxygen-Doped Chiral Graphene Nanoribbons

2021 ◽  
Author(s):  
Lei Jin ◽  
Nerea Bilbao ◽  
Yang Lv ◽  
Xiao-Ye Wang ◽  
Soltani Paniz ◽  
...  
Keyword(s):  
Edge Effects ◽  
Self Assembly ◽  
Quantum Confinement ◽  
Graphene Nanoribbons ◽  
One Dimensional ◽  
The Past ◽  
Different Types

Graphene nanoribbons (GNRs), quasi-one-dimensional strips of graphene, exhibit a nonzero bandgap due to quantum confinement and edge effects. In the past decade, different types of GNRs with atomically precise structures...

EFFECTIVE MOBILITY MODEL OF GRAPHENE NANORIBBON IN PARABOLIC BAND ENERGY

2011 ◽  
Vol 25 (10) ◽  
pp. 739-745 ◽  
Author(s):  
N. A. AMIN ◽  
M. T. AHMADI ◽  
Z. JOHARI ◽  
S. M. MOUSAVI ◽  
R. ISMAIL
Keyword(s):  
Experimental Data ◽  
Band Structure ◽  
Transport Properties ◽  
Conventional Method ◽  
Dirac Point ◽  
Graphene Nanoribbons ◽  
Mobility Model ◽  
Band Energy ◽  
One Dimensional ◽  
Effective Mobility

In this letter, we investigate the transport properties of one-dimensional semiconducting Graphene nanoribbons (GNRs) with parabolic band structure near the Dirac point. The analytical model of effective mobility is developed by using the conductance approach, which differs from the conventional method of extracting the effective mobility using the well-known Matthiessen rule. Graphene nanoribbons conductance model developed was applied in the Drude model to obtain the effective mobility, which then gives nearly close comparison with the experimental data.

scholarly journals One-dimensional confinement and width-dependent bandgap formation in epitaxial graphene nanoribbons

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Hrag Karakachian ◽  
T. T. Nhung Nguyen ◽  
Johannes Aprojanz ◽  
Alexei A. Zakharov ◽  
Rositsa Yakimova ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Quantum Confinement ◽  
Field Effect Transistors ◽  
Graphene Nanoribbons ◽  
Tight Binding ◽  
Scanning Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Pristine Graphene ◽  
One Dimensional ◽  
Experimental Findings

AbstractThe ability to define an off state in logic electronics is the key ingredient that is impossible to fulfill using a conventional pristine graphene layer, due to the absence of an electronic bandgap. For years, this property has been the missing element for incorporating graphene into next-generation field effect transistors. In this work, we grow high-quality armchair graphene nanoribbons on the sidewalls of 6H-SiC mesa structures. Angle-resolved photoelectron spectroscopy (ARPES) and scanning tunneling spectroscopy measurements reveal the development of a width-dependent semiconducting gap driven by quantum confinement effects. Furthermore, ARPES demonstrates an ideal one-dimensional electronic behavior that is realized in a graphene-based environment, consisting of well-resolved subbands, dispersing and non-dispersing along and across the ribbons respectively. Our experimental findings, coupled with theoretical tight-binding calculations, set the grounds for a deeper exploration of quantum confinement phenomena and may open intriguing avenues for new low-power electronics.

scholarly journals Aggregation of atomically precise graphene nanoribbons

RSC Advances ◽  
2017 ◽  
Vol 7 (86) ◽  
pp. 54491-54499 ◽  
Author(s):  
Mikhail Shekhirev ◽  
Timothy H. Vo ◽  
Donna A. Kunkel ◽  
Alexey Lipatov ◽  
Axel Enders ◽  
...  
Keyword(s):  
Electronic Device ◽  
Graphene Nanoribbons ◽  
Device Fabrication ◽  
One Dimensional ◽  
Electronic Device Fabrication

Atomically precise chevron graphene nanoribbons can form bulk π–π stacked aggregates as well as few-μm-long one-dimensional structures on surfaces that could be used for electronic device fabrication.

In situ growth of porphyrinic metal–organic framework nanocrystals on graphene nanoribbons for the electrocatalytic oxidation of nitrite

2016 ◽  
Vol 4 (27) ◽  
pp. 10673-10682 ◽  
Author(s):  
Chung-Wei Kung ◽  
Yan-Sheng Li ◽  
Min-Han Lee ◽  
Shan-Yu Wang ◽  
Wei-Hung Chiang ◽  
...  
Keyword(s):  
Electrocatalytic Oxidation ◽  
Graphene Nanoribbons ◽  
Metal Organic Framework ◽  
In Situ Growth ◽  
Nitrite Oxidation ◽  
One Dimensional ◽  
Metal Organic ◽  
Organic Framework

A nanocomposite of MOF-525 nanocrystals interconnected by numerous one-dimensional graphene nanoribbons serves as a promising electrocatalyst for nitrite oxidation.

scholarly journals Current-Induced One-Dimensional Diffusion of Co Adatoms on Graphene Nanoribbons

Nano Letters ◽  
2021 ◽  
Author(s):  
Tobias Preis ◽  
Sasha Vrbica ◽  
Jonathan Eroms ◽  
Jascha Repp ◽  
Jan M. van Ruitenbeek
Keyword(s):  
Graphene Nanoribbons ◽  
One Dimensional ◽  
Dimensional Diffusion

IMPLICIT EQUILIBRIUM DYNAMICS

2011 ◽  
Vol 16 (4) ◽  
pp. 518-555 ◽  
Author(s):  
Alfredo Medio ◽  
Brian Raines
Keyword(s):  
Inverse Limits ◽  
Mathematical Methods ◽  
One Dimensional ◽  
Equilibrium Dynamics ◽  
Dynamical Behaviors ◽  
Different Types ◽  
Dynamics And Control ◽  
Intertemporal Equilibrium ◽  
And Control ◽  
Published Paper

We discuss the problem known in economics as backward dynamics occurring in models of perfect foresight, intertemporal equilibrium described mathematically by implicit difference equations. In a previously published paper [Journal of Economic Dynamics and Control 31 (2007), 1633–1671], we showed that by means of certain mathematical methods and results known as inverse limits theory it is possible to establish a correspondence between the backward dynamics of a noninvertible map and the forward dynamics of a related invertible map acting on an appropriately defined space of sequences, each of whose elements corresponds to an intertemporal equilibrium. We also proved the existence of different types of topological attractors for one-dimensional models of overlapping generations. In this paper, we provide an extension of those results, constructing a Lebesgue-like probability measure on spaces of infinite sequences that allows us to distinguish typical from exceptional dynamical behaviors in a measure–theoretical sense, thus proving that all the topological attractors considered in MR07 are also metric attractors. We incidentally also prove that the existence of chaos (in the Devaney–Touhey sense) backward in time implies (and is implied by) chaos forward in time.

scholarly journals Evolution of planetary systems in dissipating gas disks

2010 ◽  
Vol 6 (S276) ◽  
pp. 504-505
Author(s):  
Soko Matsumura ◽  
Edward W. Thommes ◽  
Sourav Chatterjee ◽  
Frederic A. Rasio
Keyword(s):  
Planetary Systems ◽  
One Dimensional ◽  
Disk Evolution ◽  
Published Paper

AbstractIn a recently published paper Matsumura et al. (2010) (hereafter M10), we have studied the evolution of three-planet systems in dissipating gas disks by using a hybrid N-body and one-dimensional gas disk evolution code. In this article, we highlight some results which are only briefly mentioned in M10.

Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads

2012 ◽  
Vol 21 (1) ◽  
pp. 017305 ◽  
Author(s):  
Hua Zhao ◽  
Xiao-Wei Zhang ◽  
Tuo Cai ◽  
Tian Sang ◽  
Xiao-Chun Liu ◽  
...  
Keyword(s):  
Graphene Nanoribbons ◽  
One Dimensional ◽  
Spin Dependent Transport ◽  
Dependent Transport ◽  
Zigzag Graphene Nanoribbons
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