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The dipole-dipole interactions between excitons are of paramount importance in the nanoscale structures. When two excitons are placed together they can exchange the energy can manifest in the resonant Raman cross sections. We provide…

介观与纳米尺度物理 · 物理学 2024-04-09 Anna Wroblewska , Niclas S. Mueller , Mariusz Zdrojek , Stephanie Reich , Georgy Gordeev

Aligned graphene nanoribbon (GNR) arrays were made by unzipping of aligned single-walled and few-walled carbon nanotube (CNT) arrays. Nanotube unzipping was achieved by a polymer-protected Ar plasma etching method, and the resulting…

材料科学 · 物理学 2010-05-03 Liying Jiao , Li Zhang , Lei Ding , Jie Liu , Hongjie Dai

This article deals with the multiscale modeling of stress transfer characteristics of nano-reinforced polymer composite reinforced with regularly staggered carbon fibers. The distinctive feature of construction of nano-reinforced composite…

材料科学 · 物理学 2017-02-06 S. I. Kundalwal , S. A. Meguid

We use an atom-atom potential between carbon atoms to obtain an interaction potential between nanotubes (assumed rigid), thereby calculating the cohesive energy of a bunch of nanotubes in hexagonal two dimensional packing. The model…

材料科学 · 物理学 2007-05-23 V. K. Jindal , Shuchi Gupta , K. Dharamvir

Photonic integrated circuits require robust room-temperature single-photon sources to enable scalable quantum technologies. Single-walled carbon nanotubes (CNTs), with their unique excitonic properties and chemical tunability, are…

Novel applications in nanotechnology rely on the design of tailored nano-architectures. For this purpose, carbon nanotubes and nanoparticles are intensively investigated. In this work we study the influence of non-functionalized carbon…

材料科学 · 物理学 2015-07-20 Beatriz H. Juarez , Christian Klinke , Andreas Kornowski , Horst Weller

We show that quantum confinement in the valence and conduction bands of semiconducting single-walled carbon nanotubes can be engineered by means of artificial defects. This ability holds potential for designing future nanotube-based quantum…

介观与纳米尺度物理 · 物理学 2018-03-21 Gilles Buchs , Dario Bercioux , Leonhard Mayrhofer , Oliver Gröning

A single-walled carbon nanotube presents a seamless cylindrical graphene surface and is thus an ideal adsorption substrate for investigating the physics of atoms and molecules in two dimensions and approaching the one-dimensional limit.…

介观与纳米尺度物理 · 物理学 2015-05-20 Boris Dzyubenko , Hao-Chun Lee , Oscar E. Vilches , David H. Cobden

Two novel three-dimensional (3D) crystal structures of carbon (C) and germanium carbide (GeC2) were predicted using first-principles density-functional theory (DFT) calculations. These newly discovered 3D carbon allotrope and GeC2 are in…

材料科学 · 物理学 2020-12-15 Ying Yang , Guang Yang , Xihong Peng

A mechanically bistable single-walled carbon nanotube can act as a variable-shaped capacitor with a voltage-controlled transition between collapsed and inflated states. This external control parameter provides a means to tune the system so…

介观与纳米尺度物理 · 物理学 2015-05-20 Oleg E. Shklyaev , Eric Mockensturm , Vincent H. Crespi

A simple process for chemical vapor deposition of ultra SD single wall carbon nanotubes has been developed. In this process, an iron nitrate nonahydrate solution in isopropyl alcohol with a concentration of 400 ug/mlit was used to catalyze…

介观与纳米尺度物理 · 物理学 2012-07-17 Nima Arjmandi , Pejhman Sasanpour , Bijan Rashidian

Metallocenes can be encapsulated inside the carbon nanotubes. The structural, energetic and electronic properties of organometallic MCp2@SWCNT are obtained from DFT method. We verify that such encapsulation is noncovalent functionalization,…

材料科学 · 物理学 2011-09-15 Fenglei Cao , Wei Ren , Xianfang Xu , Ye-Xiang Tong , Cunyuan Zhao

QED-model for multichain coupled qubit system, proposed in \cite{Part1}, was confirmed by Raman scattering studies of quasi-1D carbon zigzag-shaped nanotubes (CZSNTs), produced by high energy ion beam modification of natural diamond single…

量子物理 · 物理学 2011-05-27 Dmitry Yearchuck , Alla Dovlatova

We report ultra-high density assembly of aligned single walled carbon nanotubes (SWNTs) two dimensional arrays via ac dielectrophoresis using high quality surfactant free and stable SWNT solutions. After optimization of frequency and…

介观与纳米尺度物理 · 物理学 2011-01-13 Shashank Shekhar , Paul Stokes , Saiful I. Khondaker

Based on C8, carbon 4C, with cfc topology, two hybrid carbon allotropes generated by inserting C(sp2) and C(sp1) carbon atoms into C8 diamond-like lattice were identified and labeled ene-C10 containing C(sp2) and ene-yne-C14 containing…

材料科学 · 物理学 2023-07-11 Samir F. Matar

A line list of vibration-rotation transitions for 13C substituted HCN is presented. The line list is constructed using known experimental levels where available, calculated levels and ab initio line intensities originally calculated for the…

天体物理学 · 物理学 2009-11-13 G. J. Harris , F. C. Larner , J. Tennyson , B. M. Kaminsky , Ya. V. Pavlenko , H. R. A. Jones

The search for earth abundant, efficient and stable electrocatalysts that can enable the chemical reduction of CO2 to value-added chemicals and fuels at an industrially relevant scale, is a high priority for the development of a global…

Controlled growth, patterning and placement of carbon nanotube (CNT) thin films for electronic applications are demonstrated. The density of CNT films is controlled by optimizing the feed gas composition as well as the concentration of…

材料科学 · 物理学 2015-05-18 V. K. Sangwan , V. W. Ballarotto , D. R. Hines , M. S. Fuhrer , E. D. Williams

Graphene nanoribbons are prepared inside boron nitride nanotubes by liquid phase encapsulation and subsequent annealing of 1,2,4-trichlorobenzene. The product is imaged with high resolution transmission electron microscopy, and…

Carbon nanotubes (CNTs) have attracted increasing attention because of their unique structural, mechanical, and electronic properties. Surface chemistry modifications are also useful and critical to manipulate the adsorptive properties of…

材料科学 · 物理学 2007-08-15 K. -S. Lin , Ruey-Bing Li , Frank Lee , Li-Cheng Lou , Su-Wei Chiu