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The discovery of fullerenes has stimulated extensive exploration of the resulting behavior of adsorbed films. Our study addresses the planar substrates graphene-fluoride (GF) and graphane (GH) in comparison to graphene. We present initial…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 L. Reatto , M. Nava , D. E. Galli , C. Billman , J. O. Sofo , M. W. Cole

A novel nanomaterial which consists of graphene sheets decorated with silsesquioxane molecoles has been developed. Indeed, aminopropyl-silsesquioxane (POSS-NH2) has been employed to functionalize graphene oxide sheets (GOs). The surface…

Materials Science · Physics 2013-02-07 Luca Valentini , Marta Cardinali , Jose M. Kenny , Mirko Prato , Orietta Monticelli

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

At present, Pt nanoparticle catalysts in fuel cells suffer from aggregation and loss of chemical activity. In this work, graphdiyne, which has natural porous structure, was proposed as substrate with high adsorption ability to stabilize Pt…

Mesoscale and Nanoscale Physics · Physics 2015-03-03 Zheng-Zhe Lin

A nano-stitching method is proposed and investigated to modify graphene bilayers. Based this method, four types of low energy carbon allotropes, "wormhole graphene" allotropoes, are obtained and their structures, stabilities and electronic…

Materials Science · Physics 2015-05-18 Chaoyu He , JinLi , Jianxin Zhong

Two-dimensional (2D) carbon allotropes have received considerable attention due to their unique properties and potential applications in several fields, including electronics, catalysis, energy storage, and sensing. Following the…

Graphyne-4 sheet exhibits promising potential for nanoscale desalination to achieve both high water permeability and salt rejection rate. Extensive molecular dynamics simulations on pore-size effects suggest that graphyne-4, with 4…

Materials Science · Physics 2015-02-06 Chongqin Zhu , Hui Li , Xiao Cheng Zeng , Sheng Meng

A series of carbon allotropes with novel optoelectronic and rich topological properties is predicted by systematic first-principles calculations. These fascinating carbon allotropes can be derived by inserting acetylenic linkages…

Materials Science · Physics 2021-08-12 Yan Gao , Chengyong Zhong , Shengyuan A. Yang , Kai Liu , Zhong-Yi Lu

The formation of graphen-nanotube composites addresses a few basic problems. First, both partners are good donors and acceptors of electrons, which significantly complicates the intermolecular interaction between them leading to a two-well…

Materials Science · Physics 2009-01-26 Elena F. Sheka , Leonid A. Chernozatonskii

Isolated, atomically thin conducting membranes of graphite, called graphene, have recently been the subject of intense research with the hope that practical applications in fields ranging from electronics to energy science will emerge.…

Mesoscale and Nanoscale Physics · Physics 2010-09-17 S. Garaj , W. Hubbard , A. Reina , J. Kong , D. Branton , J. A. Golovchenko

Tremendous experimental and theoretical attempts to find carbon based two-dimensional semiconductors have yielded a wide variety of graphene polymorphs, such as carbon-nitride, carbonboride, graphyne and graphdiyne 2D materials with highly…

Materials Science · Physics 2020-03-09 S. Milad Hatam-Lee , Ali Rajabpour , Sebastian Volz

Graphene, a single atomic layer of graphitic carbon, has attracted intense attention due to its extraordinary properties that make it a suitable material for a wide range of technological applications. Large-area graphene films, which are…

Mesoscale and Nanoscale Physics · Physics 2015-02-18 Oleg V. Yazyev , Yong P. Chen

Ni(OH)2 nanocrystals grown on graphene sheets with various degrees of oxidation are investigated as electrochemical pseudocapacitor materials for potential energy storage applications. Single-crystalline Ni(OH)2 hexagonal nanoplates…

Materials Science · Physics 2010-05-07 Hailiang Wang , Hernan Sanchez Casalongue , Yongye Liang , Hongjie Dai

Graphynes and graphdiynes are carbon 2D allotrope structures presenting both sp2 and sp hybridized atoms. These materials have been theoretically predicted but due to intrinsic difficulties in their synthesis, only recently some of these…

Mesoscale and Nanoscale Physics · Physics 2017-02-21 Daniel Solis , Cristiano F. Woellner , Daiane D. Borges , Douglas S. Galvao

Graphene is a rising star in nonlinear optics due to its saturable absorption and giant Kerr nonlinearity, these properties are useful in digital optics based on optical nonlinear devices. However, practical applications require large…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Qiaoliang Bao , Jianqiang Chen , Yuanjiang Xiang , Kai Zhang , Shaojuan Li , Xiaofang Jiang , Qing-Hua Xu , Kian Ping Loh , T. Venkatesan

Graphene has recently attracted a great deal of interest in both academia and industry because of its unique electronic and optical properties [1,2], as well as its chemical, thermal, and mechanical properties. The superb characteristics of…

Materials Science · Physics 2010-06-29 Mingsheng Xu , Daisuke Fujita , Keisuke Sagisaka , Eiichiro Watanabe , Nobutaka Hanagata

Single layers of carbon dubbed "graphenes", from which graphite is built, have attracted broad interest in the scientific community because of recent exciting experimental results. Graphene is interesting from a fundamental research…

Materials Science · Physics 2008-01-05 Yakov Kopelevich , Pablo Esquinazi

Graphene is a new material that exhibits remarkable properties from both fundamental and applied issues. This is a 2D matter system whose physical and mechanical features have been approached by using tight binding model, first principle…

Strongly Correlated Electrons · Physics 2011-08-10 Lalla Btissam Drissi , El Hassan Saidi , Mosto Bousmina

In the last three decades or so, we have witnessed an extraordinary progress in the research and technology of carbon-based nanomaterials. Among the peculiar highlights are the discoveries of fullerene, the carbon nanotubes and the…

Applied Physics · Physics 2021-04-14 Arvind Singh , Sunil Kumar

Recently synthesized Porous 12-Atom-Wide Armchair Graphene Nanoribbons Nano Lett. 2024, 24, 10718-10723 exhibit tunable properties through periodic porosity, enabling precise control over their electronic, optical, thermal, and mechanical…