Cesium encapsulation in single-walled carbon nanotubes via plasma ion irradiation: Application to junction formation and<i>ab initio</i>investigation

Jeong, Goo‐Hwan; Farajian, Amir A.; Hatakeyama, Rikizo; Hirata, Takamichi; Yaguchi, Toshie; Tohji, Kazuyuki; Mizuseki, Hiroshi; Kawazoe, Yoshiyuki

doi:10.1103/physrevb.68.075410

Cited by 105 publications

(65 citation statements)

References 29 publications

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“…Controllable assembly of single atom, molecules, quantum dots and nanoparticles on graphene platforms [20,21,22] opens up possibilities for practical optoelectronic applications involving graphene hybrid structures.…”

Section: Introductionmentioning

confidence: 99%

“…Since the electric field of the excited SPs reaches similar values inside and outside the graphene wire [24], and taking into account new possibilities of encapsulating single atoms, molecules and compounds into graphene wires [20,21], and the fact that, as a result of the van der Waals force, a graphene sheet can be tightly coated on a fiber surface [25], in that work we deemed appropriate to consider the case in which the optical emitter is localized inside the wire.…”

Section: Introductionmentioning

confidence: 99%

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Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Cuevas

2018

Journal of Quantitative Spectroscopy and Radiative Transfer

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Abstract. We present a theoretical study of the spontaneous emission of a line dipole source embedded in a graphene-coated subwavelength wire of arbitrary shape. The modification of the emission and the radiation efficiencies are calculated by means of a rigorous electromagnetic method based on Green's second identity. Enhancement of these efficiencies is observed when the emission frequency coincides with one of the plasmonic resonance frequencies of the wire. The relevance of the dipole emitter position and the dipole moment orientation are evaluated. We present calculations of the near-field distribution for different frequencies which reveal the multipolar order of the plasmonic resonances.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Cuevas

2018

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…This, in turn, indicates that encapsulation of doped atoms into the nanotube is energetically more favorable than their outside adsorption by the nanotube surface -the effect observed experimentally in Ref. [5].…”

Section: Numerical Results and Discussionmentioning

confidence: 64%

“…Important is that their intrinsic properties may be substantially modified in a controllable way by doping with extrinsic impurity atoms, molecules and compounds [4]. Recent successful experiments on encapsulation of single atoms into single-wall CNs [5] and their intercalation into single-wall CN bundles [4,6], along with numerous studies of monoatomic gas absorbtion by the CN bundles (see [7] for a review), stimulate an in-depth analysis of the atom-CN van der Waals (vdW) interactions. The problem is both of fundamental and of applied interest, because it sheds light on the peculiarities of the atomelectromagnetic-field interactions in low-dimensional dispersive and absorbing surroundings, on the one hand, and, on the other, the atom-nanotube vdW interaction is the most important one determining the filling factor in encapsulating single atoms into CNs.…”

Section: Introductionmentioning

confidence: 99%

van der Waals coupling in atomically doped carbon nanotubes

Bondarev

Lambin

2005

Phys. Rev. B

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We have investigated atom-nanotube van der Waals (vdW) coupling in atomically doped carbon nanotubes (CNs). Our approach is based on the perturbation theory for degenerated atomic levels, thus accounting for both weak and strong atom-vacuum-field coupling. The vdW energy is described by an integral equation represented in terms of the local photonic density of states (DOS). By solving it numerically, we demonstrate the inapplicability of standard weak-coupling-based vdW interaction models in a close vicinity of the CN surface where the local photonic DOS effectively increases, giving rise to an atom-field coupling enhancement. An inside encapsulation of atoms into the CN has been shown to be energetically more favorable than their outside adsorption by the CN surface. If the atom is fixed outside the CN, the modulus of the vdW energy increases with the CN radius provided that the weak atom-field coupling regime is realized (i.e., far enough from the CN). For inside atomic position, the modulus of the vdW energy decreases with the CN radius, representing a general effect of the effective interaction area reduction with lowering the CN curvature.

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“…Liu Hong et al [22] investigated the energy barriers and the chirality effects of the in-tube doping of alkali metals in single-walled CNTs using classical MD based on the Lennard-Jones potentials. Jeong et al [24,25] attempted both experimental and theoretical investigations of Cs encapsulated in single-walled CNTs. The Cs intercalation was realized by ion irradiation to single-walled CNTs, and field-emission-type transmission electron microscopy and scanning transmission electron microscopy observations confirmed the encapsulated Cs configurations.…”

Section: Introductionmentioning

confidence: 99%

Fullerene Shuttle Memory Device: Classical Molecular Dynamics Study

Kang

Hwang

2004

J. Phys. Soc. Jpn.

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We investigated the internal dynamics of several electro-fluid shuttle memory elements, consisting of several media encapsulated in C 640 nanocapsule. The systems proposed were (i) bucky shuttle memory devices (C Energetics and operating responses of several electro-fluidic shuttle memory devices, such as transitions between the two states of the C 640 capsule, were examined by classical molecular dynamics simulations of the shuttle media in the C 640 capsule under the external force fields. The operating force fields for the stable operations of the shuttle memory device were investigated.

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Cesium encapsulation in single-walled carbon nanotubes via plasma ion irradiation: Application to junction formation andab initioinvestigation

Cited by 105 publications

References 29 publications

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

Spontaneous emission in plasmonic graphene subwavelength wires of arbitrary sections

van der Waals coupling in atomically doped carbon nanotubes

Fullerene Shuttle Memory Device: Classical Molecular Dynamics Study

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