Electrical applications for novel carbon nanotube morphologies: Does function follow shape?

Bandaru, Prabhakar R.; Rao, Apparao M.

doi:10.1007/s11837-007-0036-1

Cited by 5 publications

(2 citation statements)

References 57 publications

(45 reference statements)

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“…The unusually high shielding effect of nanocarbons is likely to originate from their unique cylindrical nano-morphology. A change in structure and morphology, at the nanoscale, could have a profound influence on macroscopic characteristics, through the paradigm of "function follows shape" [14]The nano structures could enhance the intrinsic electromagnetic properties, e.g., the dielectric constants and the electromagnetic interference EMI shielding. CNTs were shown to improve the EMI shielding of polymer composites to establish the predominant influence of intrinsic nanostructure geometry, e.g., aspect ratio and capacitive coupling, on electromagnetic characteristics.…”

Section: Resultsmentioning

confidence: 99%

Multiphoton Ionization of Uracil at 355 nm

Prieto¹,

Guerrero²,

Martínez³

et al. 2017

JNP

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The mass attenuation coefficients of graphene, MWNTs and, SWNTs have been measured for gamma energy range 356 to 1332 keV from the radioactive sources 60 Co, 133 Ba and 137 Cs using a well calibrated gamma ray spectrometer consisting of a 3´´x 3´´ NaI(Tl) scintillation detector coupled to a PC based 8K nuclear Multi Channel Analyser (MCA). In an interesting way results showed that MWNTs had the highest values of mass attenuation coefficients indicating their potential use as the best shielding material.

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Section: Resultsmentioning

confidence: 99%

Multiphoton Ionization of Uracil at 355 nm

Prieto¹,

Guerrero²,

Martínez³

et al. 2017

JNP

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“…Along with the significant enhancement in electrode performance, the scope of its applications has significantly increased [8][9][10][11]. Recently, nonlinear morphologies of CNTs have facilitated one of functionalities, following the paradigm of 'function follows shape' [12]. In our previous work, we have shown that polymer composites containing coiled CNTs (CCNT) exhibited superior electrical and mechanical characteristics when compared to linear CNTs [13,14].…”

Section: Introductionmentioning

confidence: 99%

Nanotube and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) composite film for the electrode applications in organic thin-film transistor and dye-sensitized solar cells

Yun¹,

Jung²,

Byun³

et al. 2018

Nanotechnology

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In this study, composite films made of coiled carbon nanotubes (CCNTs) and poly(3,4-ethylenedioxythiophene) polymerized with poly(4-styrenesulfonate) (PEDOT:PSS) were fabricated with different composition ratios. The variations in film properties (including surface morphology, work function, and electrical conductivity) in accordance with the amount of CCNT dosing were investigated. Subsequently, through HCl-methanol treatment, we achieved a significant enhancement in electrical conductivity with little damage to the CCNT features. The characteristics of CCNT/PEDOT:PSS composite film are generally comparable to those of PEDOT:PSS film, and some of them, such as catalytic activity and work function, are significantly higher. On the basis of these versatile features, the CCNT/PEDOT:PSS composite films exhibit excellent performance as source/drain electrode in organic thin-film transistors and as catalytic counter electrode in dye-sensitized solar cells.

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The influence of coiled nanostructure on the enhancement of dielectric constants and electromagnetic shielding efficiency in polymer composites

Park

Theilmann

Yang

et al. 2010

Applied Physics Letters

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We report through a comparison of the electromagnetic properties of polymer composites constituted of linear and nonlinear (helically coiled) carbon nanotubes (CNTs) that the electromagnetic interference (EMI) shielding efficiency could be much increased in the latter. A higher ac conductivity and relative dielectric permittivity (both ε′ and ε″) was recorded when coiled structures were used, and was ascribed to enhanced capacitive and electric field depolarization effects. The EMI shielding was related to the extended length/diameter aspect ratio of the CNTs. Our study has implications in the design of materials for EMI shielding, where nanostructure geometry could play a major role.

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Electrical applications for novel carbon nanotube morphologies: Does function follow shape?

Cited by 5 publications

References 57 publications

Multiphoton Ionization of Uracil at 355 nm

Multiphoton Ionization of Uracil at 355 nm

Nanotube and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) composite film for the electrode applications in organic thin-film transistor and dye-sensitized solar cells

The influence of coiled nanostructure on the enhancement of dielectric constants and electromagnetic shielding efficiency in polymer composites

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