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Carbon-based nanostructures have unparalleled electronic properties. At the same time, using an allotrope of carbon as the contacts can yield better device control and reproducibility. In this work, we simulate a single-electron transistor…

Mesoscale and Nanoscale Physics · Physics 2024-09-27 Washington F. dos Santos , Felippe Amorim , Alexandre Reily Rocha

The near-field Coulomb interaction between a nano-emitter and a graphene monolayer results in strong F\"orster-type resonant energy transfer and subsequent fluorescence quenching. Here, we investigate the distance dependence of the energy…

Coulomb coupling between proximal layers in graphene heterostructures results in efficient energy transfer between the layers. We predict that, in the presence of correlated density inhomogeneities in the layers, vertical energy transfer…

Mesoscale and Nanoscale Physics · Physics 2013-04-24 Justin C. W. Song , Leonid S. Levitov

Graphene-oxide hybrid structures offer the opportunity to combine the versatile functionalities of oxides with the excellent electronic transport in graphene. Understanding and controlling how the dielectric environment affects the…

Mesoscale and Nanoscale Physics · Physics 2012-07-26 X. Hong , K. Zou , A. M. DaSilva , C. H. Ahn , J. Zhu

Graphene, the one-atom-thick sp2 hybridized carbon crystal, displays unique electronic, structural and mechanical properties, which promise a large number of interesting applications in diverse high tech fields. Many of these applications…

Mesoscale and Nanoscale Physics · Physics 2016-09-27 Tommaso Cavallucci , Khatuna Kakhiani , Riccardo Farchioni , Valentina Tozzini

We report on the mechanism of energy transfer in van der Waals heterostructures of the two-dimensional semiconductor WS$_2$ and graphene with varying interlayer distances, achieved through spacer layers of hexagonal boron nitride (hBN). We…

Mesoscale and Nanoscale Physics · Physics 2024-06-13 David Tebbe , Marc Schütte , K. Watanabe , T. Taniguchi , Christoph Stampfer , Bernd Beschoten , Lutz Waldecker

Using first-principles calculations we demonstrate sizable exchange coupling between a magnetic molecule and a magnetic substrate via a graphene layer. As a model system we consider cobaltocene (CoCp$_2$) adsorbed on graphene deposited on…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Simone Marocchi , Paolo Ferriani , Nuala Mai Caffrey , Franca Manghi , Stefan Heinze , Valerio Bellini

First-principles calculations of the effect of carbon coverage on the atomic, electronic and magnetic structure of nickel and iron substrates demonstrate insignificant changes in the interatomic distances and magnetic moments on the atoms…

Materials Science · Physics 2014-12-24 D. W. Boukhvalov , Yu. N. Gornostyrev , M. A. Uimin , A. V. Korolev , A. Ye Yermakov

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

In graphene based materials, the energy storage capacity is usually improved by rich porous structures with extremely high surface area. By utilizing surface corrugations, this work shows an alternative strategy to activate graphene…

Applied Physics · Physics 2021-10-07 Longsheng Zhong , Chang Wu , Xiaojing Zhu , Shulai Lei , Guijie Liang , Sepidar Sayyar , Biao Gao , Liangxu Lin

We present electrical transport measurements of a van-der-Waals heterostructure consisting of a graphene nanoribbon separated by a thin boron nitride layer from a micron-sized graphene sheet. The interplay between the two layers is…

Mesoscale and Nanoscale Physics · Physics 2015-05-29 D. Bischoff , M. Eich , A. Varlet , P. Simonet , T. Ihn , K. Ensslin

We present in this contribution a theoretical investigation of the spontaneous emission and energy transfer rates between quantum systems placed above a monolayer of conducting graphene. The conditions for strong and weak coupling between a…

We present a theoretical study of the structural and electronic properties of graphene monolayer functionalized with boron and nitrogen atoms substituting carbon atoms. Our study is based on the ab initio calculations in the framework of…

Materials Science · Physics 2013-07-29 Magdalena Woinska , Karolina Z. Milowska , Jacek A. Majewski

MXenes with versatile chemistry and superior electrical conductivity are prevalent candidate materials for energy storage and catalysts. Inspired by recent experiments of hybridizing MXenes with carbon materials, here we theoretically…

Materials Science · Physics 2018-05-14 Si Zhou , Xiaowei Yang , Wei Pei , Nanshu Liu , Jijun Zhao

The power of polymorphism in carbon is vividly manifested by the numerous applications of carbon-based nano-materials. Ranging from environmental issues to biomedical applications, it has the potential to address many of today's dire…

Materials Science · Physics 2017-03-28 Obaidur Rahaman , Bohayra Mortazavi , Arezoo Dianat , Gianaurelio Cuniberti , Timon Rabczuk

This thesis looks at the electronic energy transfer in the Fenna-Matthews-Olson complex, in which evidence of long-lived coherence has been observed in 2-dimensional infrared experiments. I use three techniques: the numerically exact…

Chemical Physics · Physics 2015-03-12 David M. Wilkins

The integration of graphene with complex-oxide heterostructures such as LaAlO$_3$/SrTiO$_3$ offers the opportunity to combine the multifunctional properties of an oxide interface with the electronic properties of graphene. The ability to…

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

Energy transfer from photoexcited zero-dimensional systems to metallic systems plays a prominent role in modern day materials science. A situation of particular interest concerns the interaction between a photoexcited dipole and an…

Chemical Physics · Physics 2013-04-30 Zheyuan Chen , Stéphane Berciaud , Colin Nuckolls , Tony F. Heinz , Louis E. Brus

A novel nanoelectronic device is constructed by graphyne that is robustly connected between graphene electrodes, where graphyne is composed of hexagonal carbon rings and carbon chains. Owing to similarities between the bond lengths and unit…

Mesoscale and Nanoscale Physics · Physics 2013-07-17 Young I. Jhon , Myung S. Jhon
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