Plasmon dispersion in metallic carbon nanotubes in the presence of low-frequency electromagnetic radiation

Moradi, Afshin; Khosravi, Heidar

doi:10.1016/j.physleta.2007.05.110

Cited by 31 publications

(13 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values of these plasmons are exactly matching with the earlier reports. 8,9,10 In case of type I composite, the SP 2 hybridized electrons are excited at a wavelength of 56.76 nm which is similar to the plasmon excitation in CNT. The π plasmon in the composite shows an increase in absorption and increase in excitation energy when compared to excitation in CNT.…”

Section: Resultsmentioning

confidence: 81%

“…7 Usually single wall carbon nanotube (SWCNT) shows two bulk plasmons (σ+π plasmon and π plasmon) and one surface plasmon near 20, 5 and 13 eV respectively. 8,9,10 Axial straining of the SWCNT shows a shift in the π plasmon frequency in case of perpendicular incidence of light. 6 The electric field localization near plasmon frequency increased to 10% when compared with parallel incidence of light.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic characteristics of Polyaniline/SWCNT composites

2013

View full text Add to dashboard Cite

Electromagnetic field interactions with the composites made up of polyaniline (PANI) and single wall carbon nanotube (SWCNT) are simulated using the discrete dipole approximation. Recent observations on polymer nano-composites explain the interface interactions between the PANI host and the carbon nanostructures. These types of composite have potential applications in organic solar cell, gas sensor, bio-sensor and electro-chromic devices. Various nanostructures of PANI is possible in the form of nanowires, nanodisks, nanofibers and nanotubes have been reported. In the present study, we considered two types of composite, one is the PANI wrapped CNT and the other is CNT immersed in PANI nanotube. We use Modified Thole's parameters for calculating frequency dependent atomic polarizability of composites. Absorption spectra of the composites are studied by illuminating a wide range of electromagnetic energy spectrum. From the absorption spectra, we observe plasmon excitation in near-infrared region similar to that in SWCNTs reported recently. The interactions between the PANI and CNT in the composite, resulting electromagnetic absorptions are simulated.

show abstract

Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Electromagnetic characteristics of Polyaniline/SWCNT composites

2013

View full text Add to dashboard Cite

show abstract

“…After reading very carefully the paper by Shokri and co-workers, 1 we observe that this work is largely a copy of our paper, 2 and also that no reference was made to our paper.…”

mentioning

confidence: 97%

“…9 is also largely a copy of our work 6 and again there is no reference to our works. 2,4,6 and other papers. 5,7 …”

mentioning

confidence: 98%

Comment on “Study of geometrical effects on the characteristics of metallic double-walled carbon nanotube waveguides through quantum hydrodynamics” [Phys. Plasmas 16, 063501 (2009)]

Moradi

Khosravi

2009

Physics of Plasmas

Self Cite

View full text Add to dashboard Cite

show abstract

“…The ion and nanoparticle number density perturbations, deduced from (4)-(6) by using (9), are, respectively,…”

mentioning

confidence: 99%

Low-frequency electrostatic wave in a metallic electron-hole-ion plasma with nanoparticles

Shukła¹,

Morfill

2009

J. Plasma Phys.

View full text Add to dashboard Cite

Abstract. We investigate the dispersion property of a low-frequency electrostatic wave in a dense metallic electron-hole-ion plasma with nanoparticles. The latter are charged due to the field emission, and hence the metallic nanoparticles/nanotubes can be regarded as charged dust rods surrounded by degenerate electrons and holes, and non-degenerate ions. By using a quantum hydrodynamic model for the electrons and holes, we obtain the electron and hole number density perturbations, while the ion and dust rod number density perturbations follow the classical expressions. A dispersion relation for the low-frequency electrostatic wave in our multispecies dense metallic plasma is derived and analyzed. The possibility of exciting non-thermal electrostatic waves is also discussed.Carbon nanotubes [1] were discovered around 18 years ago. Since then there have been a great deal of experimental [2,3] and theoretical [4,5,[7][8][9][10] investigations of localized collective electronic excitations (plasmon modes) in single-and multiwalled carbon nanotubes (CNTs). The knowledge of dispersion properties of numerous plasmonic modes is essential for determining the parameters that control electronic structures of CNTs.The CNTs can be metallic or semiconducting depending on their radius and the geometric angles. When CNTs are held in plasmas, one encounters charging of CNTs due to the electric field emission [11,12]. Henceforth, CNTs in a dense metallic plasma can be regarded as an ensemble of charged nanoparticles surrounded by degenerate electrons and holes, as well as non-degenerate ions. Collective interactions between the plasma and charged nanoparticles can give rise to new wave modes in a multi-species dense metallic plasma.In this letter, we report on the existence of a low-frequency electrostatic wave and its instability in a metallic plasma. The latter is composed of degenerate electrons https://www.cambridge.org/core/terms. https://doi

show abstract

Plasmon dispersion in metallic carbon nanotubes in the presence of low-frequency electromagnetic radiation

Cited by 31 publications

References 19 publications

Electromagnetic characteristics of Polyaniline/SWCNT composites

Electromagnetic characteristics of Polyaniline/SWCNT composites

Comment on “Study of geometrical effects on the characteristics of metallic double-walled carbon nanotube waveguides through quantum hydrodynamics” [Phys. Plasmas 16, 063501 (2009)]

Low-frequency electrostatic wave in a metallic electron-hole-ion plasma with nanoparticles

Contact Info

Product

Resources

About